MAXIMUM SIZE OF RETICULATED LEATHERJACKET, STEPHANOLEPIS DIASPROS FRASER-BRUNNER, 1940 (TETRAODONTIFORMES: MONACANTHIDAE), FOR THE TURKISH SEAS

Maximum size of reticulated leatherjacket, Stephanolepis diaspros Fraser-Brunner, 1940 (Tetraodontiformes: Monacanthidae), for the Turkish Seas

Okan Akyol, Tevfik Ceyhan, Aytaç Özgül, Okan Ertosluk

Faculty of Fisheries, Ege University, 35440 Urla, İzmir, TURKEY
Bozdoğan Vocational School, Adnan Menderes University, 09760 Aydın, TURKEY

Abstract

A specimen of Lessepsian migrant, Stephanolepis diaspros, 257 mm in total length, was caught on 10 January 2018 by a scoop net in Göltürkbükü fishing port, Güllük Bay, on the sandy bottom at a depth of 1 m. This record was the maximum size for both the Turkish seas and the Mediterranean.

Keywords: Lessepsian migrant, maximum size, Güllük Bay, Aegean Sea

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References

Akyol, O., Özgül, A. (2015) Record of reticulated leatherjacket Stephanolepis diaspros Fraser-Brunner, 1940 (Tetraodontiformes: Monacanthidae) from Izmir Bay, Turkey. J. Black Sea/Mediterranean Environ. 21(3): 316-322.

Başusta, N., Erdem, Ü. (2000) A study on the pelagic and demersal fishes of Iskenderun Bay. Tr. J. Zool. 24(Suppl.): 1-19 (in Turkish).

Ben Amor, M.M., Capapé, C. (2008) Occurrence of a filefish closely related to Stephanolepis diaspros (Osteichthyes: Monacanthidae) off northern Tunisian coast (South-western Mediterranean). Cah. Biol. Mar. 49: 323-328.

Bilecenoğlu, M. (2010) Alien marine fishes of Turkey- an updated review. In: Fish Invasions of the Mediterranean Sea: Change and Renewal, (eds., Golani, D., Appelbaum-Golani, B.), Pensoft Publishers, Sofia-Moscow, pp. 189-217.

Bilecenoğlu, M., Yokeş, B. (2013) New Lessepsian fish records from theAegean and Marmara Sea. In: (eds. Bilecenoğlu, M., Alfaya, J.E.F.,Azzurro, E., Baldacconi, R., Boyacı, Y.Ö., Circosta, V., Compagno,L.J.V., Coppola, F.,
Deidun, A., Durgham, H., Durucan, F., Ergüden,D., Fernandez-Alvarez, F.A., Gianguzza, P., Giglio, G., Gökoğlu, M.,Gürlek, M., Ikhtiyar, S., Kabasakal, H., Karachle, P.K., Katsanevakis,S., Koutsogiannopoulos, D., Lanfranco, E.,
Micarelli, P., Özvarol, Y.,Pena-Rivas, L., Pousanidis, D., Saliba, J., Sperone, E., Tibullo, D.,Tiralongo, F., Tripepi, S., Turan, C., Vella, P., Yokeş, M.B., Zava, B.), New Mediterranean marine biodiversity records (December 2013). Med.
Mar. Sci. 14: 463-480.

Catalano, E., Zava, B. (1993) The presence of Stephanolepis diaspros Br. Brunn. Italian Waters (Osteichthyes, Filefish). Supplemento alle Ricerche di Biologia della Selvaggina 21: 379-382.

Corsini-Foka, M., Pancucci-Papadopoulou, M.A., Kalogirou, S. (2010) Is the Lessepsian province in expansion? The Aegean Sea experience. Sub-regional Technical meeting on the Lessepsian migration and its impact on eastern
Mediterranean fishery. Nicosia, 7-9 Dec. FAO East Med Tech. Document, pp. 50-59.

Deidun, A., Castriota, L., Falautano, M., Maraventano, G., Prazzi, E., Andaloro, F. (2015) Documenting the occurrence of the Lessepsian fish Stephanolepis diaspros within the Strait of Sicily, Central Mediterranean. J. Black Sea/Mediterranean Environ. 21(1): 1-11.

Dulčić, J., Pallaoro, A. (2003) First record of the filefish, Stephanolepis diaspros (Monocanthidae), in the Adriatic Sea. Cybium 27: 321-322.

El-Ganainy, A.A., Sabra, M.M.M. (2008) Age, growth, mortality and yield per recruit of the file fish Stephanolepis diaspros (Fraser-Brunner, 1940) (Pisces: Monacanthidae) in the Gulf of Suez, Egypt. J. Fish. Aquat. Sci. 3: 252-260.

El-Ganainy, A.A. (2010) Some biological aspects of the filefish Stephanolepis diaspros (Family: Monacanthidae) from the Gulf of Suez, Egypt. Researcher 2(10): 75-78.

Erguden, D., Turan, C., Gurlek, M. (2009) Weight-length relationships for 20 Lessepsian fish species caught by bottom trawl on the coast of Iskenderun Bay (NE Mediterranean Sea, Turkey). J. Appl. Ichthyol. 25:133-135.

Froese, R., Pauly, D. (2018) FishBase. World Wide Web electronic publication. www.fishbase.org, version (10/2017) (accessed date: 17 Jan. 2018).

Golani, D., Orsi-Relini, L., Massuti, E., Quignard, J.P. (2002) CIESM Atlas of 321 Exotic Species in the Mediterranean. Vol. 1 Fishes, 256 pp.

Golani, D., Öztürk, B., Başusta, N. (2006) The Fishes of the Eastern Mediterranean. Turkish Marine Research Foundation Publication No: 24 Istanbul, Turkey. 259 pp.

Gücü, A.C., Bingel, F., Avşar, D., Uysal, N. (1994) Distribution and occurrence of Red Sea fish at the Turkish coast-northern Cilician basin. Acta Adriat. 34:103-113.

Harvey, E., Fletcher, D., Shortis, M. (2001a) A comparison of the precision and accuracy of estimates of reef-fish lengths determined visually by divers with estimates produced by a stereo-video system. Fisheries Bulletin 99: 63-71.

Harvey, E., Fletcher, D., Shortis, M. (2001b) Improving the statistical power of length estimates of reef fish: a comparison of estimates determined visually by divers with estimates produced by a stereo-video system. Fisheries Bulletin 99: 72-80.

Harvey, E., Fletcher, D., Shortis, M. (2002) Estimation of reef fish length by divers and by stereo-video: A first comparison of the accuracy and precision in the field on living fish under operational conditions. Fisheries Research 57: 255-265.

Iglésias, S.P., Frotté, L. (2015) Alien marine fishes in Cyprus: Update and new records. Aquatic Invasions 10: 425-438.

Kosswig, C. (1950) Erythraische fische im Mittelmeer und an der grenzeder Agais. Syllegomena Biologica, Festchrift Kleinschmidt, Leipzig: Akademie Verlag, pp. 203-212.

Lipej, L., Mavric, B., Dulcic, J. (2014) Northern most record of the reticulated leather-jacket Stephanolepis diaspros Brunner-Fraser, 1940 in the Mediterranean Sea. In: (eds., Kapiris, K., Apostolidis, C., Baldacconi, R., Başusta, N.,
Bilecenoğku, M., Bitar, G., Bobori, D. C., Boyacı, Y.Ö., Dimitriadis, C., Djurovic, M., Dulcic, J., Durucan, F., Gerovasileiou, V., Gökoğlu, M., Koutsoubas, D., Lefkaditou, E., Lipej, L., Markovic, O., Mavrici, B., Özvarol, Y.,V. Pesic, V., O. Petriki, O., Siapatisi, A., Sinis, M., Tibullo, D., Tiralongo, F.), New Mediterranean Biodiversity Records (April, 2014). Med. Mar. Sci. 15: 198-212.

Oz, M.İ., Okuş, E., Yüksek, A. (2007) Notes on the Erythrean alien fishes of Datça-Bozburun Peninsula- a specially protected area in the southeastern Aegean Sea (Turkey). Rapp. Comm. int Mer Médit., 38: 563.

Sangun, L., Akamca, E., Akar, M. (2007) Weight-length relationships for 39 fish species from the north-eastern Mediterranean coasts of Turkey. Tr. J. Fish. Aquat. Sci. 7: 37-40.

Servonnat, M., Drakulic, M. (2015) New records of Fistularia commersonii and Stephanolepis diaspros around Lipsi Island, Dodacanese, Greece. In: Zenetos et al. New Mediterranean Biodiversity Records (April 2015). Med. Mar. Sci. 16: 266-284.

Steinitz, W. (1927) Beiträge zur Kenntnis der Küstenfauna Palästinas. I. Pubblicazioni della Stazione Zoologica di Napoli 8: 311-353.

Taskavak, E., Bileceoglu, M. (2001) Length-weight relationships for 18 Lessepsian (Red Sea) immigrant fish species from the eastern Mediterranean coast of Turkey. J. Mar. Biol. Assoc. UK 81: 895-896.

Torcu, H., Mater, S. (2000) Lessepsian fishes spreading along the coastsof the Mediterranean and the southern Aegean Sea of Turkey. Tr. J. Zool. 24: 139-148.

Tortonese, E. (1947) Zoological research in Rhodes Island (Aegean Sea) fish. Bollatino di Pesca, Piscicoltura e Idrobiologia 23:143-192.

Tortonese, E. (1986) Monacanthidae. In: Fishes of the North-eastern Atlantic and the Mediterranean, Vol. III (eds. P.J.P. Whitehead, M.-L.Bauchot, J.-C. Hureau, J. Nielsen, E. Tortonese). UNESCO, Paris, pp. 1338-1339.

Yemisken, E., Dalyan, C., Eryılmaz, L. (2014) Catch and discard fishspecies of trawl fisheries in the Iskenderun Bay (North-eastern Mediterranean) with emphasis on lessepsian and chondricthyan species. Med. Mar. Sci. 15: 380-389.

Zouari-Ktari, R., Bradai, M.N., Bouain, A. (2008) The feeding habits of the Lessepsian fish Stephanolepis diaspros (Fraser-Brunner, 1940) in the Gulf of Gabes (eastern Mediterranean Sea). Cah. Biol. Mar. 49: 329-335.

Zouari-Ktari, R., Bradai, M.N. (2011) Reproductive biology of the lessepsian Reticulated leatherjacket Stephanolepis diaspros (Fraser Brünner, 1940) in the Gulf of Gabes (Eastern Mediterranean Sea). Rev. Fish Biol. Fisheries 21: 641-
648.

THE ALIEN ALGA CAULERPA TAXIFOLIA (VAHL) C. AGARDH VAR. DISTICHOPHYLLA (SONDER) VERLAQUE, HUISMAN AND PROCACCINI MOVE THEIR NORTHERN AND WESTERN LIMITS

The alien alga Caulerpa taxifolia (Vahl) C. Agardh var. distichophylla (Sonder) Verlaque, Huisman and Procaccini move their northern and western limits

Vicenzo Di Martino, Bessy Stancanelli, Nicola Cantasano

CNR / ISAFoM (National Research Council of Italy) / Institute for Agricultural and Forest System in the Mediterranean), via Empedocle, 58, 95125 Catania, ITALY
Aqua Stories, via Vampolieri, 25/31 int. 27, 95022 Aci Catena, Catania, ITALY
CNR / ISAFoM (National Research Council of Italy) / Institute for Agricultural and Forest System in the Mediterranean, via Cavour 4/6, 87036 Rende Cosenza, ITALY

Abstract

Caulerpa taxifolia (Vahl) C. Agardh var. distichophylla (Sonder) Verlaque, Huisman and Procacini is an invasive green alga recently reported in the Mediterranean Sea. The first record was in Turkey in 2007 and later it has been reported in Sicily (2009), Cyprus (2013), Malta (2015), Rhodes (2016) and Libya (2017). In the current study we present additional records of this species expanding its range into the Eastern and Western Mediterranean Sea (Eastern and Western Sicilian shoreline, Calabrian Tyrrhenian coast, Sardinia and Tunisia) as well as in the eastern Mediterranean basin. Our specimens were collected on various substrates and identified morphologically.

Keywords: Caulerpa taxifolia var. distichophylla, alien species, Mediterranean Sea, Italy, Tunisia

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References

Aplikioti, M., Louizidou, P., Mystikou, A., Marcou, M., Stavrou, P., Kalogirou, S., Tsiamis, K., Panayotidis, P., Kupper, F. C. (2016) Further expansion of the alien seaweed Caulerpa taxifolia var. distichophylla (Sonder) Verlaque, Huisman & Procacini (Ulvophyceae, Bryopsidales) in the Eastern Mediterranean Sea. Aquatic Invasion 11(1): 11-20.

Cevik, C., Yokes, B., Cavas, L., Erkol, L., Derici, O. B., Verlaque, M. (2007) First report of Caulerpa taxifolia (Bryopsidales, Chlorophyta) on the Levantine coast (Turkey, Eastern Mediterranean). Estuarine, Coastal and Shelf Science 74: 549-556.

Cevik, C., Cavas, L., Mavruk, S., Derici, O. B., Cevik, F. (2012) – Macrobenthic assemblages of newly introduced Caulerpa taxifolia from the Eastern Mediterranean coast of Turkey. Biol. Invasions 14: 499-501.

Çiçek, B. A., Kurt, O., Taskin, E., Öztürk, M. (2013) First report of Caulerpa taxifolia var. distichophylla (Sonder) Verlaque, Huisman and Procaccini (Caulerpaceae, Chlorophyta) from Northern Cyprus. Rapport du Congrès de la
Commission Internationale pour l’Exploration Scientifique de la Mer Méditerranée 40: 600.

Cormaci, M., Furnari, G. (2009) Progetto ISPRA. Realizzazione ed aggiornamento delle schede tassonomiche delle specie non indigene di taxa vegetali: aggiornamento ed implementazione dei records e delle segnalazioni delle stesse specie, ove presenti, nel mar Mediterraneo e nei mari Italiani, aggiornamento e studio critico della letteratura. Aggiornamento dei dati già in possesso dell’ISPRA (ex ICRAM): macrofitobenthos. Rapporto del Dipartimento di Botanica dell’ Università di Catania, Catania, Italy, 14 pp.

Cormaci, M., Furnari, G., Alongi G. (2014) Flora marina bentonica del Mediterraneo: Chlorophyta. Bollettino delle sedute origin of a slender Caulerpa taxifolia strain introduced into the Mediterranean Sea. Botanica Marina 56: 27-39.

Di Martino, V., Stancanelli, B. (2018) In: ARTICLE A, C. New Mediterranean Biodiversity Records (July, 2018). Mediterranean Marine Science 19(2) in press.

Guiry, M.D. Guiry, G. M. (2018) AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org. (accessed 23 April 2018)

Jongma, D. N., Campo, D., Dattolo, E., D’Esposito, D., Duchi, A., Grewe, P., Huisman, J., Verlaque, M., Yokes, M. B., Procaccini, G. (2013) Identity and origin of a slender Caulerpa taxifolia strain introduced into the Mediterranean
Sea. Botanica Marina 56: 27-39.

Meinesz, A., Chancollon, O., Cottalorda, J. M. (2010) Observatoire sur l’expansion de Caulerpa taxifolia et Caulerpa racemosa en Méditerranée: campagne janvier 2008 – juin 2010. Université Nice Sophia Antipolis E.A. 4228 ECOMERS Publ.

Mannino A.M., Balistreri P. (2017) An updated overview of the invasive Caulerpa taxa in Sicily and circum-Sicilian Islands, strategic zone within the NW Mediterranean Sea. Fl. Medit. 27: 221-240.

Musco, L., Andaloro, F., Mikac, B., Mirto, S., Vega, Fernandez T., Badalamenti, F. (2014) Concern about the spread of the invader seaweed Caulerpa taxifolia var. distichophylla (Chlorophyta: Caulerpales) to the Western Mediterranean. Mediterranean Marine Science 15(3): 532-538.

Musco, L., Andaloro, F., D’Anna, G., Giangrande, A., Lo Brutto, S., Mikac, B., Mirto, S., Pipitone, C., Scuderi, D., Vega Fernández, T., Badalamenti, F. (2015) Impatto di Caulerpa taxifolia var. distichophylla su macro- e meiofauna
associate a Posidonia oceanica. Biol. Mar. Medit. 22(1): 136-137.

Schembri, P. J., Barbara, J., Deidun, A., Lanfranco, E., Lanfranco, S. (2015) It was only a matter of time: occurrence of Caulerpa taxifolia (Vahl) C. Agardh var. distichophylla (Sonder) Verlaque, Huisman and Procaccini in the Maltese
Islands (Chlorophyta, Ulvophyceae, Caulerpaceae). BioInvasions Records 4: 9-16.

Shakman, E. A., Abdalha, A. B., Thala, F., Al-Faturi, A., Bariche, M. (2017) First records of seven marine organism of different origins from Lybia (Mediterranea Sea). BioInvasions Records 6(4): 377-382.

Tsiamis, K., Taskin, E., Orfanidis, S., Stavrou, P., Argyrou, M., Panayotidis, P., Tsioli, T., Cicek, B. A., Marcou, M., Küpper, F. C. (2014) Checklist of seaweeds of Cyprus (Mediterranean Sea). Botanica Marina 57: 153-66.

Verlaque, M., Boudouresque, C. F., Meinesz, A., Gravez, V. (2000) The Caulerpa racemosa complex (Caulerpales, Ulvophyceae) in the Mediterranean  Sea. Botanica Marina 43: 49-68.

Verlaque, M., Durand, C., Huisman, J. M., Boudouresque, C. F, Le Parco, Y. (2003) On the identity and origin of the Mediterranean invasive Caulerpla racemosa (Caulerpales, Chlorophyta). European Journal of Phycology 38: 325-
339.

Zenetos, A., Gofas, S., Verlaque, M., Cinar, M. E., Raso, J. E. G., Bianchi, C. N., Morri, C., Azzurro, E., Bilecenoglu, M., Froglia, C., Siokou, I., Violanti, D., Sfriso, A., San Martin, G., Giangrande, A., Katagan, T., Ballesteros, E., RamosEspla, A., Mastrototaro, F., Ocana, O., Zingone, A., Gambi, M. C., Streftaris, N. (2010). Alien species in the Mediterranean Sea by 2010. A contribution to the application of European Union’s Marine Strategy Framework Directive (MSFD). Part I. Spatial distribution. Mediterranean Marine Science 11: 381-493.

STRANDING RECORDS OF MEDITERRANEAN MONK SEAL MONACHUS MONACHUS (HERMANN, 1779) ON THE AEGEAN AND MEDITERRANEAN SEA COASTS OF TURKEY BETWEEN 2012 AND 2018

Stranding records of Mediterranean monk seal Monachus monachus (Hermann, 1779) on the Aegean and Mediterranean Sea coasts of Turkey between 2012 and 2018

Erdem Danyer, Işıl Aytemiz Danyer, Arda M. Tonay, Ufuk Erol, Ayhan Dede

Veterinary Control Central Research Institute, 06020, Etlik, Ankara, TURKEY
Turkish Marine Research Foundation (TUDAV), P.O. Box: 10, Beykoz, Istanbul, TURKEY
Food, Agriculture and Livestock Ministry of Turkish Republic, Çankaya, Ankara, TURKEY
Faculty of Aquatic Sciences, Istanbul University, Ordu Cad. No: 8 Laleli, Fatih, İstanbul, TURKEY

Abstract

The Mediterranean monk seal, Monachus monachus (Hermann, 1779), is an endangered species according to International Union for the Conservation of Nature (IUCN) Red List. Therefore it is of high importance to monitor mortality/survival of all individuals to ensure the sustainability of the population. Eighteen monk seals were found dead on the Turkish coasts of the Aegean and Mediterranean Seas between February 2012 and April 2018. This paper reviews those strandings during the seven-year period with the preliminary necropsy findings of three new records; a female pup found in Antalya on 25 November 2017, an adult female found in Muğla on 7 March 2018, and an adult female stranded on 16 April 2018 on the coast of İzmir. There are various illness causes, virological, parasitological, or microbiological, which effect monk seals, thus systematic necropsies must be performed as soon as possible on carcasses.

Keywords: Monachus monachus, species protection, stranding network, Turkish coasts

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References

Acevedo-Whitehouse, K., Petetti, L., Duignan, P., Castinel, A. (2009) Hookworm infection, anaemia and genetic variability of the New Zealand sea lion. Proceedings of the Royal Society of London B: Biological Sciences, 1-7.

Akdeniz Gazetesi. (2015) http://www.akdenizgazete.com/haber/antalyakemerde-olu-fok-kiyiya-vurdu/3851 (accessed: 05.05.2018).

Androukaki, E., Adamantopoulou, S., Dendrinos, P., Tounta, E., Kotomatas, S. (1999) Causes of mortality in the Mediterranean monk seal (Monachus monachus) in Greece. In: Contributions to the Zoology and Ecology of the
Eastern Mediterranean Region, (eds. Chintiroglu, C.C., Schockaert, E.R.), Royal Belgian Society for Zoology, pp. 405-411.

Castinel, A., Duignan, P.J., Pomroy, W.E., Lyons, E.T., Nadler, S.A., Dailey, M.D., Wilkinson I.S., Chilvers, B.L. (2006). First report and characterization of adult Uncinaria spp. in New Zealand Sea Lion (Phocarctos hookeri) pups from the Auckland Islands, New Zealand. Parasitology Research, 98(4), 304-309.

CNN TÜRK (2018) https://www.cnnturk.com/turkiye/izmirde-olu-akdenizfoku-bulundu (accessed: 05.05.2018).

Dailey M.D. (2001) Parasitic diseases. CRC Handbook of Marine Mammal Medicine. 2nd edition (eds., Dierauf L.A., Gulland F.M.D.) CRC Press, New York. pp. 357-379.

Danyer, E., Aytemiz, I., Gücü, A.C., Tonay, A.M. (2014) Preliminary study on a stranding case of Mediterranean monk seal Monachus monachus (Hermann, 1779) on the Eastern Mediterranean coast of Turkey. Journal of Black Sea/Mediterranean Environment 20(2): 152-157.

Danyer, E., Aytemiz, I., Özbek, E.Ö., Tonay, A.M. (2013a) Preliminary study on a stranding case of Mediterranean monk seal Monachus monachus (Hermann, 1779) on Antalya coast, Turkey, August 2013. Journal of Black
Sea/Mediterranean Environment 19(3): 359-364.

Danyer, E., Özgür Özbek, E., Aytemiz, I., Tonay, A.M. (2013b) Preliminary report of a stranding case of Mediterranean Monk Seal Monachus monachus (Hermann, 1779) on Antalya coast, Turkey, April 2013. Journal of Black
Sea/Mediterranean Environment 19(2): 278-282.

Dede, A., Tonay, A.M., Öztürk, B. (2015) Mediterranean monk seal (Monachus monachus Hermann 1779) in the Aegean Sea. In: The Aegean Sea Marine Biodiversity, Fisheries, Conservation and Governance (eds., Katağan,
T., Tokaç, A., Beşiktepe, Ş., Öztürk, B.), TUDAV, pp. 612-635.

Gücü, A.C., Sakinan, S., Ok, M. (2009) Occurrence of the critically endangered Mediterranean Monk Seal, Monachus monachus, at OlymposBeydağları National Park, Turkey (Mammalia: Phocidae). Zoology in the Middle East 46(1): 3-8.

Güçlüsoy, H., Savas, Y. (2003) Interaction between monk seals Monachus monachus (Hermann, 1779) and marine fish farms in the Turkish Aegean and management of the problem. Aquaculture Research 34(9): 777-783.

Güçlüsoy, H., Kiraç, C.O., Veryeri, N.O., Savas, Y. (2004) Status of the Mediterranean monk seal, Monachus monachus (Hermann, 1779) in the coastal waters of Turkey. EU Journal of Fisheries & Aquatic Sciences 21(3-4): 201-210.

Haberturk. (2014) http://www.haberturk.com/gundem/haber/940027-kusadasinda-olu- akdeniz-foku-bulundu (accessed: 05.05.2018).

Hurriyet. (2018) http://www.hurriyet.com.tr/yavru-akdeniz-foku-olubulundu-40656481 (accessed: 05.05.2018).

İHA. (2016) http://www.bakayrinti.com/haber-100-fok-tan-99-tane-kaldI16510.html (accessed: 05.05.2018).

Jauniaux, T., Andre, M., Dabin, W., Morell, M., Coignoul, F. (2009) Guidelines for Post Mortem Investigations of Cetaceans and Pinnipeds, 3rd Cetacean Necropsy Workshop: Special Issue on Cetaceans Inner Ear, including Beaked Whales (Liege, 2009). European Cetacean Society, 40 pp.

Karaburun Kent Konseyi. (2012) http://www.karaburunkentkonseyi.org/mordoganda-yavru-bir-fok-oldurulmus-olarak-bulundu/ (accessed: 05.05.2018).

Karamanlidis, A. A., Dendrinos, P., De Larrinoa, P.F., Gücü, A.C., Johnson, W.M., Kıraç, C.O., Pires, R. (2015) The Mediterranean monk seal Monachus monachus: status, biology, threats, and conservation priorities. Mammal
Review, 14 pp.

Karamanlidis, A., Dendrinos, P. (2015) Monachus monachus (errata version published in 2017). The IUCN Red List of Threatened Species 2015: e.T13653A117647375. http://dx.doi.org/10.2305/IUCN.UK.2015 4.RLTS.
T13653A45227543.en. (Accessed 10.05.2018).

Lee Miller, D., Ewing, R.Y., Bossart, G.D. (2001) Emerging and Resurging Diseases. (eds., Dierauf L.A., Gulland F.M.D..) CRC Handbook of Marine Mammal Medicine. 2nd edition. CRC Press, New York. pp. 15–30.

Milliyet. (2016) http://www.milliyet.com.tr/nesli-tukenmekte-olan-fokbodrum-kiyilarina-mugla-yerelhaber-1320562/ (accessed: 05.05.2018).

Milliyet. (2017) http://www.milliyet.com.tr/alanya-sahilinde-olu-fokbulundu-antalya-yerelhaber-1763440/ (accessed: 05.05.2018).

Mynet. (2014) http://www.mynet.com/haber/guncel/mersinde-uc-aylikakdeniz-foku-foku-olu-bulundu-1086732-1 (accessed: 05.05.2018).

Mynet. (2018) http://www.mynet.com/haber/guncel/olu-akdeniz-foku-sahilevurdu-3961818-1 (accessed: 05.05.2018).

Nadler, S.A., Lyons, E.T., Pagan, C., Hyman, D., Lewis, E.E., Beckmen, K., Bell, C.M., Castinel A., DeLong, R.L., Duignang, P.J., Farinpour, C., Huntington, K.B., Kuiken, T., Morgades, D., Naem, S., Norman, R., Parker, C., Ramos, P., Spraker, T.R., Berón-Verao, B. (2013) Molecular systematics of pinniped hookworms (Nematoda: Uncinaria): species delimitation, host associations and host-induced morphometric variation. International journal for Parasitology 43(14): 1119-1132.

Öztürk, B. (1992) Mediterranean Monk Seal. Anahtar Kitaplar, Istanbul, 215 pp. (in Turkish).

Öztürk, B. (2007) Mediterranean Monk Seal and Its Protection. Yalıkavak Çevre ve Fok Araştırmaları Derneği Yayın No:1, Muğla Turkey, 132 pp. (in Turkish).

Ramos, P., Lynch, M., Hu, M., Arnould, J. P., Norman, R., Beveridge, I. (2013) Morphometric and molecular characterization of the species of Uncinaria Frölich, 1789 (Nematoda) parasitic in the Australian fur seal Arctocephalus
pusillus doriferus (Schreber), with notes on hookworms in three other pinniped hosts. Systematic Parasitology 85(1): 65-78.

Rowles, T.K., Van Dolah, F.M, Hohn, A.A. (2001) Gross necropsy and specimen collection protocols. (eds., Dierauf L.A., Gulland F.M.D.) CRC Handbook of Marine Mammal Medicine. 2nd edition. CRC Press, New York., pp. 449-470.

Sabah. (2018) https://www.sabah.com.tr/egeli/2018/04/17/olu-akdeniz-fokukiyiya-vurdu (accessed: 20.04.2018).

LENGTH–WEIGHT RELATIONSHIPS OF 13 FISH SPECIES FROM THE WESTERN BLACK SEA (ZONGULDAK-AMASRA), TURKEY

Length–weight relationships of 13 fish species from the western Black Sea (Zonguldak-Amasra), Turkey

Dilek Türker, Habib Bal

Faculty of Science and Arts, Department of Biology, University of Balıkesir, Balıkesir, TURKEY
Department of Fisheries, Livestock Research Institute, Bandırma, Balıkesir, TURKEY

Abstract

In this study, length-weight relationship (LWR) parameters are reported for 13 fish species collected from the western Black Sea and a total of 3132 fish individuals were sampled. The b values varied from 2.84 for Scorpaena maderensis to 3.49 for Trachurus mediterraneus, with a mean of 3.13 (±0.074). The LWRS and regressions for all species were highly significant (P<0.05), whereas they were isometric for six species (Merlangius merlangus, Sprattus sprattus, Trachinus draco, Pomatomus saltatrix, Trachurus trachurus and Chelidonichthys lucernus). Two species (Scorpaena porcus, Scorpaena maderensis) showed negative allometry and five species (Mullus barbatus, Merluccius merluccius, Engraulis encrasicolus, Trachurus mediterraneus, Uranoscopus scaber) indicated positive allometry. In this study, LWR for S. maderensis in the Black Sea was investigated for the first time.

Keywords: Length-weight relationship, fish, growth, bottom trawl

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References

Ak, O., Kutlu, S., Aydın, İ. (2009) Length-weight relationship for 16 fish species from the Eastern Black Sea, Türkiye. Turkish Journal of Fisheries and Aquatic Sciences 9(1): 125-126.

Altın, A., Ayyıldız, H., Kale, S., Alver, C. (2015) Length-weight relationships of forty-nine fish species from shallow waters of Gökçeada Island, northern Aegean Sea Turkey. Turkish Journal of Zoology 39(5): 971-975.

Avşar, D. (1995) Population parameters of sprat (Sprattus sprattus phalericus RISSO) from the Turkish Black Sea coast. Fisheries Research 21(3): 437-453.

Bagenal, T.B., Tesch, F. W. (1978) Age and growth. In: Methods for Assessment of Fish Production in Fresh Waters, (ed., Bagenal, T.), Blackwell Sci. Publ., Oxford, pp. 101-136.

Bal, H., Yanık, T., Türker, D. (2015) Length-weight and length-length relationships of the bluefish Pomatomus saltarix (Linnaeus, 1766) population in the South Marmara Sea of Turkey. Alınteri Zirai Bilimler Dergisi 29(2): 26-33.

Binohlan, C., Pauly, D. (1998) The length-weight table. In: Fish base 1998: Concepts, Design and Data Sources, (eds., Froese, R., Pauly, D.), ICLARM, Manila, pp. 121-123.

Bök, T. D., Göktürk, D., Kahraman, A. E., Alicli, T. Z., Acun, T., Ateş, C. (2011) Length-weight relationships of 34 fish species from the Sea of Marmara, Turkey. Journal of Animal and Veterinary Advances 10(23): 3037-3042.

Cengiz, Ö. (2013) Length-weight relationships of 22 fish species from the Gallipoli Peninsula and Dardanelles (northeastern Mediterranean, Turkey). Turkish Journal of Zoology 37(4): 419-422.

Ceyhan, T., Akyol, O., Erdem, M. (2009) Length-weight relationships of fishes from Gökova Bay, Turkey (Aegean Sea). Turkish Journal of Zoology 33(1): 69-72.

Çiçek, E., Avşar, D., Yeldan, H., Ozutok, M. (2006) Length–weight relationships for 31 teleost fishes caught by bottom trawl net in the Babadil limani Bight (northeastern Mediterranean). Journal of Applied Ichthyology 22(4): 290-292.

Demirel, N., Dalkara, E. M. (2012) Weight-length relationships of 28 fish species in the Sea of Marmara. Turkish Journal of Zoology 36(6): 785-791.

Demirhan, S. A., Can, M. F. (2007) Length–weight relationships for seven fish species from the southeastern Black Sea. Journal of Applied Ichthyology 23(3): 282-283.

Dulčić, J., Kraljević, M. (1996) Weight-length relationships for 40 fish species in the eastern Adriatic (Croatian waters). Fisheries Research 28(3): 243-251.

Frota, L. O., Costa, P. A. S., Braga, A. C. (2004) Length-weight relationships of marine fishes from the central Brazilian coast. NAGA, World Fish Center Quarterly 27(1-2): 20-26.

Genç, Y., Zengin, M., Başar, S., Tabak, İ., Ceylan, N., Çiftci, Y., Ustündağ, C., Akbulut, B., Şahin, T. (1999) The Research Project of Economical Marine Products. TKB, Central Fisheries Research institute, Trabzon, 157 pp. (in
Turkish).

Gonçalves, J. M. S., Bentes, L., Lino, P. G., Ribeiro, J., Canario, A. V., Erzini, K. (1997) Weight-length relationships for selected fish species of the small-scale demersal fisheries of the south and south-west coast of Portugal. Fisheries
Research 30(3): 253-256.

İşmen, A. (2002) A preliminary study on the population dynamics parameters of whiting (Merlangius merlangus euxinus) in Turkish Black Sea coastal waters. Turkish Journal of Zoology 26(2): 157-166.

Kalaycı, F., Samsun, N., Bilgin, S., Samsun, O. (2007) Length-weight relationship of 10 fish species caught by bottom trawl and midwater trawl from the Middle Black Sea, Turkey. Turkish Journal of Fisheries and Aquatic Sciences 7(1): 33-36.

Kapiris, K., Klaoudatos, D. (2011) Length-weight relationships for 21 fish species caught in the Argolikos Gulf (central Aegean Sea, eastern Mediterranean). Turkish Journal of Zoology 35(5): 717-723.

Karakulak, F. S., Erk, H., Bilgin, B. (2006) Length–weight relationships for 47 coastal fish species from the northern Aegean Sea, Turkey. Journal of Applied Ichthyology 22(4): 274-278.

Kasapoğlu, N., Düzgüneş, E. (2013) Length-weight relationships of marine species caught by five gears from the Black Sea. Mediterranean Marine Science 15(1): 95-100.

Keskin, Ç., Gaygusuz, Ö. (2010) Length-weight relationships of fishes in shallow waters of Erdek Bay (Sea of Marmara, Turkey). IUFS Journal of Biology 69(2): 87-94.

King, R. P. (1996) Length weight relationships of Nigerian freshwater fishes. Naga, The ICLARM Quarterly 19(3): 49-53.

Koutrakis, E.,Tsikliras, A. (2003) Length-weight relationships of fishes from three northern Aegean estuarine systems (Greece). Journal of Applied Ichthyology 19(4): 258-260.

Mendes, B., Fonseca, P., Campos, A. (2004) Weight–length relationships for 46 fish species of the Portuguese west coast. Journal of Applied Ichthyology 20(5): 355-361.

Merella, P., Quetglas, A., Alemany, F., Carbonell, A. (1997) Length-weight relationship of fishes and cephalopods from the Balearic Islands (western Mediterranean). Naga, the ICLARM Quarterly 20(3-4): 66-68.

Mommsen, T.P. (1998) Growth and Metabolism. In: The Physiology of Fishes (ed., Eans, D.H.),. CRC Press, New York, pp. 65-97.

Morato, T., Afonso, P., Lourinho, P., Barreiros, J. P., Santos, R. S., Nash, R. D. M. (2001) Length–weight relationships for 21 coastal fish species of the Azores, north-eastern Atlantic. Fisheries Research 50(3): 297-302.

Moutopoulos, D. K., Stergiou, K. I. (2002) Length–weight and length–length relationships of fish species from the Aegean Sea (Greece). Journal of Applied Ichthyology 18(3): 200-203.

Özaydın, O., Taskavak, E. (2006) Length-weight relationships for 47 fish species from Izmir Bay (eastern Aegean Sea, Turkey). Acta Adriatica 47(2): 211-216.

Özpiçak, M., Saygın, S.,Polat, N. (2017) The length-weight and length-length relationships of bluefish, Pomatomus saltatrix (Linnaeus, 1766) from Samsun, middle Black Sea region. Natural and Engineering Sciences 2(3): 28-36.

Öztekin, A., Özekinci, U., Daban, I. B. (2016) Length-weight relationships of 26 fish species caught by longline from the Gallipoli peninsula, Turkey (northern Aegean Sea). Cahiers Biologie Marine 57: 335-342.

Özvarol, Y. (2014) Length-weight relationships of 14 fish species from the Gulf of Antalya (northeastern Mediterranean Sea, Turkey). Turkish Journal of Zoology 38(3): 342-346.

Radkhah, A.,Eagderi, S. (2015) Length-weight and length-length relationships and condition factor of six cyprinid fish species of Zarrineh River (Uremia Lake basin, Iran). Iranian Journal of Ichthyology 2(1): 61-64.

Samsun, N., Erkoyuncu, I. (1998) The research on the estimation of some parameters of whiting (Gadus merlangus euxinus Nordmann, 1840) caught by the bottom trawls in the area of Sinop (Black Sea) from the view point of fishery
biology. Ege University Journal of Fisheries 15(1-2): 19-31.

Sangun, L., Akamca, E.,Akar, M. (2007) Weight-length relationships for 39 fish species from the north-eastern Mediterranean coast of Turkey. Turkish Journal of Fisheries and Aquatic Sciences 7(1): 37-40.

Sinovčić, G., Franičević, M., Zorica, B., Čikeš‐Keč, V. (2004) Length–weight and length–length relationships for 10 pelagic fish species from the Adriatic Sea (Croatia). Journal of Applied Ichthyology 20(2): 156-158.

Sparre, P., Ursin, E. Venema, S.C. (1989). Introduction to Tropical Fish Stock Assessment. Part 1. Manual. FAO Fisheries Technical Paper, 1-337.

Şahin, T. (1999) Some biological characteristics of sprat (Sprattus sprattus phalericus Risso, 1826) on the Eastern Black Sea coast. Turkish Journal of Zoology 23(1): 249-256.

Taskavak, E., Bilecenoglu, M. (2001) Length–weight relationships for 18 Lessepsian (Red Sea) immigrants fish species from the eastern Mediterranean coast of Turkey. Journal of the Marine Biological Association of the United Kingdom 81(5): 895-896.

Yankova, M., Pavlov, D., Raykov, V., Mihneva, V., Radu, G. (2011) Lengthweight relationships of ten fish species from the Bulgarian Black Sea waters. Turkish Journal of Zoology 35(2): 265-270.

Yıldız, T., Zengin, M., Uzer, U., Akpınar, İ. Ö., Karakulak, F. S. (2018). Lengthweight relationships for 24 fish species collected from the western Black Sea (Turkey). Cahiers Biologie Marine 59(2): 159-165.

ECOLOGICAL QUALITY OF THE SEA OF MARMARA (TURKEY) ASSESSED BY THE MARINE FLORISTIC ECOLOGICAL INDEX (MARFEI)    

Ecological quality of the Sea of Marmara (Turkey) assessed by the Marine Floristic Ecological Index (MARFEI)    

Ergün Taşkın, Kostas Tsiamis, Sotiris Orfanidis

Manisa Celal Bayar University, Faculty of Arts and Sciences, Dept. of Biology, Muradiye, Yunusemre, 45140, Manisa, TURKEY
Institute of Oceanography, Hellenic Centre for Marine Research, Anavissos, 19013 GREECE
European Commission, Joint Research Centre – Directorate for Sustainable Resources, Water & Marine Resources Unit, Ispra, ITALY
Fisheries Research Institute, Hellenic Agricultural Organization-Demeter, 640 07 Nea Peramos, Kavala, GREECE

Abstract

Benthic macrophytes (macroalgae and angiosperms) are proposed as biological elements to assess the ecological status of coastal and transitional waters within the EU Water Framework Directive. In the present paper, a sampling of benthic macrophytes was made from 0-5 m depth at 25 different sites of the Sea of Marmara (Turkey) in 2015 and the Marine Floristic Ecological Index (MARFEI) was applied. Macrophytes were classified into five ecological status groups: ESGI (IA, IB, IC; late-successional taxa such as Cystoseira spp., angiosperms, calcareous algae) and ESGII (IIA, IIB; opportunistic taxa such as filamentous and sheet-like green algae). The study revealed good ecological status class (ESC) for 1 site, moderate for 11 sites, poor for 10 sites, and bad for 3 sites. MARFEIEQR showed a strong negative linear relationship with the pressure index MA-LUSI. Nevertheless, the results of this study have to be validated by similar studies in other georgaphical areas.

Keywords: Angiosperms, MARFEI, pressures, marine algae, taxonomy

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References

Ballesteros, E., Torras, X., Pinedo, S., García, M., Mangialajo, L., de Torres, M. (2007) A new methodology based on littoral community cartography dominated by macroalgae for the implementation of the European Water Framework
Directive. Marine Pollution Bulletin 55: 172-180.

Çınar, M.E., Bakır, K. (2014) ALien Biotic IndEX (ALEX) – a new index for assessing impacts of alien species on benthic communities. Marine Pollution Bulletin 87: 171-179.

Dağlar, G., Taşkın, E. (2013) Ecological status of the Gulf of İzmir assessed by Macrophyte Quality Index. 17. National Symposium on Fisheries, İstanbul, Turkey.

Dağlar, G., Taşkın, E. (2015) Ecological status of the Gulf of İzmir assessed by Ecological Evaluation Index. 18. National Symposium on Fisheries, İzmir, Turkey.

EC (2013) Commission Decision of 20 September 2013 Establishing, Pursuant to Directive 2000/60/EC of the European Parliament and of the Council, the Values of the Member State Monitoring System Classifications as a Result of the Intercalibration Exercise and Repealing Decision 2008/ 915/EC. Official Journal of the European Union (L 266/1-47).

EU (2000) DIRECTIVE 2000/60/EC of the European parliament and of the council, of 23 October 2000, establishing a framework for Community action in the field of water policy. Official Journal of the European Communities, G.U.C.E.
22/12/2000, L 327.

Flo, E., Camp, J., Garcés, E. (2011) Assessment Pressure methodology, Land Uses Simplified Index (LUSI). WFD-CIS- phase II, Technical paper.

Gobert, S., Sartoretto, S., Rico-Raimondino, V., Andral, B., Chery, A., Lejeune, P., Boissery, P. (2009) Assessment of three ecological status of Mediterranean French coastal waters as required by the Water Framework Directive using the Posidonia oceanica Rapid Easy Index: PREI. Marine Pollution Bulletin 58: 1727-1733.

Guiry, M.D., Guiry, G.M. (2018) AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org (Accessed 20 January 2018).

Nikolic, V., Zuljevic, A., Antolic, B. (2011) Macroalgae as bioindicators in the Adriatic Sea: the application of CARLIT and EEI methods. European Journal of Phycology 46: 181-181.

Orfanidis, S., Panayotidis, P., Stamatis, N. (2001) Ecological evaluation of transitional and coastal waters: A marine benthic macrophytes-based model. Mediterranean Marine Science 2: 45-65.

Orfanidis, S., Panayotidis, P., Ugland, K. (2011) Ecological Evaluation Index continuous formula (EEI-c) application: a step forward for functional groups, the formula and reference condition values. Mediterranean Marine Science 12: 199-
231.

Orlando-Bonaca, M., Lipej, L., Orfanidis, S. (2008) Benthic macrophytes as a tool for delineating, monitoring and assessing ecological status: the case of Slovenian coastal waters. Marine Pollution Bulletin 56: 666-676.

Panayotidis, P., Montesanto, B., Orfanidis, S. (2004) Use of low budget monitoring of macroalgae to implement the European Water Framework Directive. Journal of Applied Phycology 16: 49-59.

Parsons, T.R., Maita, Y., Lalli, C.M. (1984) A Manual of Chemical and Biological Methods for Seawater Analysis. Pons Point, N.S.W. Australia, Pergamon Press, xiv+173 pp.

Piazzi, L., Gennaro, P., Ceccherelli, G. (2015) Suitability of the ALien Biotic IndEX (ALEX) for assessing invasion of macroalgae across different Mediterranean habitats. Marine Pollution Bulletin 97: 234-240.

Romero J., Martinez-Crego, B., Alcoverro, T., Perez, M. (2007) A multivariate index based on the seagrass Posidonia oceanica (POMI) to assess ecological status of coastal waters under the Water Framework Directive (WFD). Marine
Pollution Bulletin 55: 196-204.

Sfriso, A., Facca, C., Ghetti, P.F. (2007) Rapid Quality Index, based mainly on Macrophyte Associations (R-MaQI), to assess the ecological status of the transitional environments. Chemistry and Ecology: 23: 1-11.

Sfriso, A., Facca, C., Ghetti, P.F. (2009) Validation of the Macrophyte Quality Index (MaQI) set up to assess the ecological status of Italian marine transitional environments. Hydrobiologia 617: 117-141.

Strickland, J.D.H., Parsons, T.R. (1972) A Practical Handbook of Seawater Analysis. Fisheries Research Board of Canada. Ottawa, Canada, The Alger Press, 310 pp.

Taşkın, E. (2015) Ecological status of coastal waters of Ayvalık (Aegean Sea, Turkey) by EEI method. Ekoloji 24 (95): 10-16.

Taşkın, E, Minareci, E., Minareci, O. (2016) Ecological status of marine waters of Turkish Black Sea assessed by the Ecological Evaluation Index (EEI) method. Symposium on Euroasian Biodiversity (SEAB 2016), Antalya, Turkey, p. 512.

Taşkın, E., Öztürk, M. (2014a) Ecological status of the Sea of Marmara (Turkey) assessed by the Macrophyte Quality Index (MaQI) and Ecological Evaluation Index (EEI) methods. ICOEST’2014 – SIDE (2nd International Conference on
Environmental Science and Technology), Side, Antalya, Turkey, 319 pp.

Taşkın, E., Öztürk, M. (2014b) Comparative Study of Macroalgae Quality Indices toward Water Framework Directive and Marine Strategy Framework Directive in Coastal Waters, fieldwork and evaluation. In: Classification and Identification of Quality Status of Marine and Coastal Waters, the Ministry of Environment and Urbanization, and TÜBİTAK MAM., Kocaeli, Turkey, pp. 152-234.

Taşkın, E., Öztürk, M., Beken, Ç. (2013) Ecological status of coastal waters of Turkish Black Sea assessed by the Ecological Evaluation Index (EEI) method. International Conference “Marine Research Horizon 2020”, Varna, Bulgaria, 180pp.

NATIONAL ACTION PLAN FOR THE CONSERVATION OF CARTILAGINOUS FISHES IN THE TURKISH WATER OF THE EASTERN MEDITERRANEAN SEA

National action plan for the conservation of cartilaginous fishes in the Turkish water of the eastern Mediterranean Sea

Bayram Öztürk

Department of Marine Biology, Faculty of Aquatic Sciences, Istanbul University, TURKEY
Turkish Marine Research Foundation, P.O. Box 10, Beykoz, Istanbul, TURKEY

Abstract

National action plan for the conservation of cartilaginous fishes in the Turkish water of the eastern Mediterranean Sea is discussed. Four main threats for the cartilaginous species are listed, as bycatch in trawl, trammel nets and purse seines, unreported and unregulated fishing, marine pollution and habitat loss. Some action plans are proposed for the conservation of the cartilaginous species in the area.

Keywords: Turkey, National Action Plan, cartilaginous fishes, eastern Mediterranean Sea, threats, conservation

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SEASONAL ARRIVAL AND FEEDING OF INJURED COASTAL SHARKS AT FISH FARMS IN THE EASTERN MEDITERRANEAN   

Seasonal arrival and feeding of injured coastal sharks at fish farms in the eastern Mediterranean   

Adi Barash, Renanel Pickholtz, Hagai Nativ, Shahar Malamud, Aviad Scheinin, Dan Tchernov

Leon Charney School of Marine Sciences, University of Haifa, Haifa, ISRAEL
School of Zoology, Tel Aviv University, Tel Aviv, ISRAEL
Morris Kahn Marine Research Station, Sdot-Yam, ISRAEL

Abstract

Every summer coastal sharks (mostly sandbar sharks, Carcharhinus plumbeus) come to feed at open-sea fish farms near the Israeli coast, ever since their opening. Three of these sharks appear to suffer injuries of various degrees. At least one of the injured individuals, which suffers from a broken lower jaw, has been sighted at the fish farms every year since 2011. Providing a constant source of food to supplement feeding of wildlife has been shown to have both negative and positive impacts on wild populations and individuals. It may be possible that injured sharks, who have reduced abilities to find food in the wild, rely on such human related food sources to survive. Implications on the long-term effect of provisional feeding on sharks are discussed.

Keywords: Carcharhinus plumbeus, provisional feeding, elasmobranch, aquaculture, Eastern Mediterranean

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References

Dulvy, N., Allen, D., Ralph, G., Walls, R. (2016) The Conservation Status of Sharks, Rays and Chimaeras in the Mediterranean Sea (Brochure). IUCN, Malaga, Spain.

Dulvy, N.K., Fowler, S.L., Musick, J.A., Cavanagh, R.D., Kyne, P.M., Harrison, L.R., Carlson, J.K., Davidson, L.N., Fordham, S.V., Francis, M.P. (2014) Extinction risk and conservation of the world’s sharks and rays. Elife 3. doi: 10.7554/eLife.00590

Ferretti, F., Myers, R.A., Serena, F., Lotze, H.K. (2008) Loss of large predatory sharks from the Mediterranean Sea. Conservation Biology 22: 952-964.

Mandelman, J.W., Cooper, P.W., Werner, T.B., Lagueux, K.M. (2008) Shark bycatch and depredation in the US Atlantic pelagic longline fishery. Reviews in Fish Biology and Fisheries 18: 427.

McAuley, R.B., Simpfendorfer, C.A., Hall, N.G. (2007) A method for evaluating the impacts of fishing mortality and stochastic influences on the demography of two long-lived shark stocks. ICES Journal of Marine Science 64: 1710-1722.

Molina, J.M., Cooke, S.J. (2012) Trends in shark bycatch research: current status and research needs. Reviews in Fish Biology and Fisheries 22: 719-737.

Murray, M.H., Becker, D.J., Hall, R.J., Hernandez, S.M. (2016) Wildlife health and supplemental feeding: a review and management recommendations. Biological Conservation 204: 163-174.

Orams, M.B. (2002) Feeding wildlife as a tourism attraction: a review of issues and impacts. Tourism Management 23: 281-293.

Papastamatiou, Y.P., Itano, D.G., Dale, J.J., Meyer, C.G., Holland, K.N. (2011) Site fidelity and movements of sharks associated with ocean-farming cages in Hawaii. Marine and Freshwater Research 61: 1366-1375.

Pemberton, D., Brothers, N., Copson, G. (1991) Predators on marine fish farms in Tasmania. Papers and Proceedings of the Royal Society of Tasmania 25: 33-35.

Ward-Paige, C.A., Worm, B. (2017) Global evaluation of shark sanctuaries. Global Environmental Change 47: 174-189.

Worm B., Davis B., Kettemer, L., Ward-Paige, C.A., Chapman, D., Heithaus, M.R., Kessel, S.T., Gruber, S.H. (2013) Global catches, exploitation rates, and rebuilding options for sharks. Marine Policy 40: 194-204.

THE FIRST RECORD OF BIGEYED SIXGILL SHARK, HEXANCHUS NAKAMURAI TENG, 1962 IN ALBANIAN WATERS    

The first record of bigeyed sixgill shark, Hexanchus nakamurai Teng, 1962 in Albanian waters    

Rigers Bakiu, Marko Cakalli, Ioannis Giovos

Department of Aquaculture and Fisheries, Faculty of Agriculture and Environment, Agricultural University of Tirana, Koder-Kamez, ALBANIA
iSea, Environmental Organisation for the Preservation of the Aquatic Ecosystems, Ochi Av. 11, 55438, Agios Paulos, Thessaloniki, GREECE

Abstract

Bigeyed sixgill shark (Hexanchus nakamurai) is a deepwater cow shark species, native but rare in the Mediterranean Sea. The species commonly is misidentified as its congeneric Hexanchus griseus, a much more abundant species in the basin, creating confusion on the actual distribution and abundance of H. nakamurai in the Mediterranean Sea. In this work, we present the first confirmed record of the bigeyed sixgill shark in the Albanian Sea. The individual was captured off the coast of Himara by a professional fisherman and identified in situ by two researchers.

Keywords: Bigeyed sixgill shark, Albanian coast, Ionian Sea, Mediterranean Sea

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References

Amori, G., Angelici, F.M., Frugis, S., Gandolfi, G., Groppali, R., Lanza, B., Relini, G., Vicini, G. (1993) Vertebrata. In: Checklist delle specie della fauna Italiana (eds., Minelli, A., Ruffo, S., La Posta, S.), 110. Calderini, Bologna, Italy,
pp.83.

Andaloro, F., Falautano, M., Perzia P., Maricchiolo, C., Castriota, L. (2012) Identification and distribution of non-indigenous species in the Mediterranean Sea: the Italian challenges. Aliens: The Invasive Species Bulletin 32: 13-19.

Barnett, A., Braccini, J.M., Awruch, C.A., Ebert, D.A. (2012) An overview on the role of Hexanchiformes in marine ecosystems: biology, ecology and conservation status of a primitive order of modern sharks. Journal of Fish Biology
80: 966-990.

Compagno, L.J.V., Dando, M., Fowler, S.L. (2005) Sharks of the World. Harper Collins, 368pp.

Compagno, L.J.V., Niem, V.H. (1998) Hexanchidae. Cowsharks, sixgill, and sevengill sharks. In: FAO Identification Guide for Fishery Purposes. The Living Marine Resources of the Western Central Pacific, (eds., Carpenter, K.E., Niem,
V.H.), FAO, Rome, pp. 1208-1210.

Damalas, D., Megalofonou P. (2012) Occurrences of large sharks in the open waters of the southeastern Mediterranean Sea. Journal of Natural History 46(43- 44): 2701-2723.

Ebert, D.A. (1990) The Taxonomy, Biogeography and Biology of Cow and Frilled Sharks (Chondrichthyes: Hexanchiformes). Ph.D. thesis. Rhodes University.

Ebert, D.A., Serena, F., Mancusi, C. (2009) Hexanchus nakamurai. The IUCN Red List of Threatened Species 2009: e.T161352A5404404. http://dx.doi.org/10.2305/IUCN.UK.20092.RLTS.T161352A5404404.en. Downloaded on 26 October 2017.

Ebert, D.A., Stehmann, M.F.W. (2013) Sharks, Batoids, and Chimaeras of the North Atlantic. FAO Species Catalogue for Fishery Purposes No. 7. FAO, Rome.

Ebert, D.A. White, W.T., Ho, H.C. (2013) Redescription of Hexanchus nakamurai Teng 1962, (Chondrichthyes: Hexanchiformes: Hexanchidae), with designation of a neotype. Zootaxa 3752(1): 020-034.

Mancusi, C., Baino, R., Barone, M., Vacchi, M., Gil de Sola, L., Morey, G., Bradai, M.N., Kallianotis, A., Soldo, A., Hemida, F., Saad, A.A., Dimech, M., Peristeraki, P., Bariche,M., Clò, S., De Sabata, E., Castellano, L., Garibaldi, F.,
Lanteri, L., Tinti, F., Pais, A., Sperone, E., Micarelli, P. Poisson, F., Carlucci, R., Bottaro, M., Cebrian, D., Fortuna, C., Seret, B., Ferretti, F., Alaa El-Far, Saygu, I., Shakman, E.A. Bartolí, A., Guallart, J., Damalas, D., Megalofonou, P.,
Notarbartolo di Sciara, G., Follesa, M.C., Cannas, R., Colombo, S., Kabasakal, H., Zava, B., Cavlan, G., Jung, A., Serena, F. (2014) MEDLEM Database, a Data Collection on Large Elasmobranchs in the Mediterranean Basin. Shark
International, Durban, South Africa.

Megalofonou, P., Yannopoulos, C., Damalas, D., De Metrio, G., Deflorio, M., de la Serna, J.M., Macias, D. (2005) Incidental catch and estimated discards of pelagic sharks from the swordfish and tuna fisheries in the Mediterranean
Sea. Fisheries Bulletin 103(4): 620-634.

Papaconstantinou, C. (2014) Fauna Graeciae. An updated checklist of the fishes in the Hellenic seas. Monographs on Marine Sciences, 7.

Sanda, R., De Maddalena, A. (2003) Collection of the sharks of the National Museum in Prague – Part 1. Complete taxiderms and liquid preservations. Journal of the National Museum, Natural History Series 172(1-4): 61-70.

Serena, F., Mancusi, C., Barone, M. (2014) MEDiterranean Large Elasmobranchs Monitoring. Protocollo di acquisizione dati. SharkLife program, Roma. 130 pp. http://www.sibm.it/file%20.doc/MEDLEM%20LAST%20VERSION%202014_
con%20EC%20erredi.pdf

Soldo, A. (2016) Hexanchus nakamurai. The IUCN Red List of Threatened Species 2015: e.T161352A48952477

Tortonese, E. (1985) Gli squali Mediterranei del genera Hexanchus (Chondrichthyes). Atti della Società Italiana Scienze naturali e Museo civico di Storia naturale di Milano 126(3-4): 137-140.

Whitehead, P.J.P., Bauchot, M.L., Hureau, J.C., Nielsen, J., Tortonese, E. (1984) Fishes of the North-eastern Atlantic and the Mediterranean, Vol 1. UNESCO, Paris.

LENGTH-WEIGHT RELATIONSHIPS FOR THREE ELASMOBRANCH SPECIES FROM THE SEA OF MARMARA  

Length-weight relationships for three elasmobranch species from the Sea of Marmara   

Ali İşmen, Cahide Çiğdem Yığın, Mukadder Arslan İhsanoğlu, Burak Daban

Çanakkale Onsekiz Mart University, Marine Science and Technology Faculty, 17100, Çanakkale, TURKEY

Abstract

Length-weight relationships were estimated for three elasmobranch species from the Sea of Marmara. Specimens were collected by beam trawl between September 2011 and July 2014. A total of 192 individuals (130 Raja clavata, 45 Scyliorhinus canicula, 17 Torpedo marmorata) were examined. Results indicated that R. clavata and S. canicula have positive allometric growth and T. marmorata has negative allometric growth. Due to the lack of data on length-weight relationships of elasmobranch species in the Sea of Marmara, these results contribute to our knowledge of this species.

Keywords: Marmara Sea, length-weight relationship, Raja clavata, Scyliorhinus canicula, Torpedo marmorata

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SOME POPULATION PARAMETERS OF SCYLIORHINUS CANICULA(LINNAEUS, 1758) FROM THE NORTHEASTERN MEDITERRANEAN SEA  

Some population parameters of Scyliorhinus canicula(Linnaeus, 1758) from the northeastern Mediterranean Sea  

Ebru Ifakat Ozcan, Nuri Başusta

Fisheries Faculty, Munzur University, Tunceli, TURKEY
Fisheries Faculty, Firat University, 23119, Elazig, TURKEY

Abstract

A total of 1150 lesser spotted dogfish (Scyliorhinus canicula L., 1758), (562 female, 588 male) were collected by commercial trawlings in depths of 155-400 m in the Northeastern Mediterranean Sea between March 2012 and May 2014. Total length and weight of the fish were ranged from 12.0 to 51.0 cm and 4.13 to 396.0 g, respectively. It was determined that female/male ratio was 1:1.2. Monthly length frequency data of S. canicula were analyzed using FISAT II for estimating population parameters, including asymptotic length (L), growth coefficient (k) and recruitment pattern to assess the status of the stock. The parameters of von Bertalanffy growth equations were estimated as L=56.70 cm, K=0.20 year-1 and t0= -1.60 year and W= 622.01 g. The growth performance index (Ф’) value was calculated as 2.808. Length-weight relationships was found to be W=0.0013*L3.239 (R2=0.97), SE of b=0.016 and 95 % confidence intervals of b = 3.209-3.271. The type of growth shows positive allometric growth (b>3). Catch rates were calculated as 34.94 cm for females and 35.04 cm for males. Instantaneous mortality coefficient, natural mortality (M), fishing mortality coefficient (F) and total mortalities (Z) exploitation rate were estimated of S. canicula as Z = 1.06 year-1, M = 0.47 year-1, F = 0.59 year-1. The exploitation rates (E) was determined as 0.56 year-1. Therefore on the S. canicula distributed in Iskenderun Bay were under fishing pressure.

Keywords: Scyliorhinus canicula, growth, length-weight relationships, mortality, catch rate

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References

Bendiab, A. T., Mouffok, S., Boutiba, Z. (2012) Reproductive biology and growth lesser spotted dogfish Scyliorhinus canicula (Linnaeus, 1758) in western Algerian coasts. Biodiversity Journal 3(1): 41-48.

Bingel, F. (1987) Quantitative Fisheries on Eastern Mediterranean. Middle East Technical University, Institute of Marine Sciences, METU, Erdemli, Mersin, 312pp. (in Turkish).

Cihangir, B., Unluoglu, A., Tiraşin, E. M. (1997) Distribution and some biological aspects of the lesser spotted dogfish (Chondrichthyes, Scyliorhinus canicula, Linnaeus, 1758) from the northern Aegean Sea. Mediterranean Fisheries Congress, 9-11 Nisan İzmir, Turkey, pp. 585-603.

Cortes, E. (2000) Life history patterns and correlations in sharks. Reviews in Fisheries Science 8: 229-344.

Demirel, N., Dalkara, E. M. (2012) Weight−length relationships of 28 fish species in the Sea of Marmara. Turk. J. Zool. 36(6): 785-791.

Filiz, H., Bilge, G. (2004) Length-weight relationships of 24 fish species from the North Aegean Sea, Turkey. Journal of Applied Ichthyology 20: 431-432.

Filiz, H., Mater, S. (2002) A preliminary study on length-weight relationships for seven elasmobranch species from North Aegean Sea. Turkey. E.U. Journal of Fisheries & Aquatic Sciences 19(3-4): 401-409.

Filiz, H., Taşkavak, E. (2006) Sexual dimorphism in the head, mouth, and body morphology of the smallspotted catshark, Scyliorhinus canicula (Linnaeus, 1758) (Chondrichthyes: Scyliorhinidae) from Turkey. Acta Adriatica 47(1): 37-47.

Frisk, M. G., Miller, T. J., Fogarty, M. J. (2001) Estimation and analysis of biological parameters in elasmobranch fishes: a comparative life history study. Canadian Journal of Fisheries and Aquatic Sciences 58: 969-981.

Gayanilo, F.C., Pauly, D. (1997) FAO-ICLARM stock assessment tools (FiSAT). Reference Manual. FAO Computerized Information Series (Fisheries). FAO, Rome. 262 pp.

Gayanilo, F. C., Sparre, P., Pauly, D. (1996) The FAO-ICLARM Stock Assessment Tools (FiSAT) Users Guide. FAO Computerized Information Series (Fisheries). FAO, Rome. 126 pp.

Golani, D., Öztürk, B., Başusta, N. (2006) Fishes of the Eastern Mediterranean. Turkish Marine Research Foundation. Publication number 24. 266 pp.

Güven, O., Kebapçıoğlu, T., Deval, M. C. (2012) Length–weight relationships of sharks in Antalya Bay, eastern Mediterranean. J. Appl. Ichthyol. 28(2): 278- 279.

Henderson, A. C., Casey. A. (2001) Reproduction and growth in the lesserspotted dogfish Scyliorhinus canicula (Elasmobranchii; Scyliorhinidae), from the west coast of Ireland. Cahiers de Biologie Marine 42: 397-405.

Hoenig, J. M. (1983). Empirical use of longevity data to estimate mortality rates. Fishery Bulletin 82: 898-903.

Jennings, S., Greenstreet, S. P. R., Reynolds, J. D. (1999). Structural change in an exploited fish community: a consequence of differential fishing effects on species with contrasting life histories. Journal of Animal Ecology 68: 617-627.

Ismen, A., Yığın, Ç., Altınağaç, U., Ayaz, A. (2009) Length-weight relationships for ten shark species from Saros Bay (North Aegean Sea). J. Appl. Ichthyol. 25(Suppl. 1): 109-112.

Ivory, P. F., Nolan, C. P. (2005) Age determination, growth and reproduction in the lesser spotted dogfish, Scyliorhinus canicula (L.). Journal of Northwest Atlantic Fishery Science 35: 89-106.

Jennings, S., Greenstreet, S. P. R., Reynolds, J. D. (1999) Structural change in an exploited fish community: a consequence of differential fishing effects on species with contrasting life histories. Journal of Animal Ecology 68: 617-627.

Kinacigil, H.T., Ilkyaz, A.T., Metin, G., Ulaş, A., Soykan, O., Akyol, O., Gurbet, R. (2008) Determination of the first maturity length/age and growth parameters of demersal fish stock in the Aegean Sea from the fishery management point of view. Project Number: 103Y132. TÜBİTAK.

King, M. (1995) Fisheries Biology, Assessment and Management. Blackwell Science Ltd., Oxford. 341pp.

Moutopoulos, D.K., Ramfos, A., Mouka, A., Katselis, G. (2013) Length–weight relations of 34 fish species caught by small-scale fishery in Korinthiakos Gulf (Central Greece). Acta Ichthyol. Piscat. 43(1): 57-64.

Ozaydın, O., Uçkun, D., Akalın, S., Leblebici, S., Tosunoğlu, Z. (2007) Length–weight relationships of fishes captured from Izmir Bay, Central Aegean Sea. Journal of Applied Ichthyology 23: 695-696.

Ozcan, E.I., Başusta, N. (2015) Stomach contents of the lesser spotted dogfish, (Scyliorhinus canicula (Linnaeus, 1758)) inhabiting Northeastern Mediterranean. Ege Journal of Fish Aquatic Science 32(4): 193-195.

Ozcan, E. I., Başusta, N. (2016) On the occurence of juveniles and egg capsules of Scyliorhinus canicula from the northeastern Mediterranean Sea. Ecological Life Sciences 11(4): 28-32.

Pauly, D. (1980) On the interrelationships between natural mortality, growth parameters, and mean environmental temperature in 175 fish stocks. Journal du Conseil pour l’Exploration International de la Mer 39: 175-192.

Pauly, D. (1983) Some Simple Methods for the Assessment of Tropical Fish Stocks. FAO Fish. Tech. Pap. 234. 52 pp.

Pauly, D. (1984) Fish Population Dynamics in Tropical Waters. A Manual for Use with Programmable Calculators. Iclarm Contribution No: 143. 325pp.

Pauly, D., Ingles, J. Neal, R. (1984) Application to shrimp stocks of objective methods for the estimation of growth, mortality and recruitment-related parameters from length-frequency data (ELEFAN I and II). In: Penaeid Shrimps
–Their Biology and Management, (eds., Gulland, J.A., Rothschild, B.I.), pp. 220-234.

Pauly, D., Munro, J. L. (1984) Once more on the comparison of growth in fish and invertebrates. ICLARM Fishbyte 2(1): 21. Rodriguez-Cabello C. Sanchez, F. (2005) Mortality estimates of Scyliorhinus canicula in the Cantabrian sea using tag-recapture data. Journal of Fish Biology 66: 1116-1126.

Rodriguez-Cabello, C., Sánchez, F., Velasco. F. (2005) Growth of lesser spotted dogfish (Scyliorhinus canicula L., 1758) in the Cantabrian Sea, based on tagrecapture data. Journal of Northwest Atlantic Fishery Science 35: 131-140.

Rodriguez-Cabello, C., Velasco, F., Olaso, I. (1998) Reproductive biology of the lesser-spotted dogfish Scyliorhinus canicula (L. 1758) in the Cantabrian Sea. Sci. Mar. 62: 187-191.

Turker-Cakir, D. Torcu-Koç, H., Başusta, A., Başusta, N. (2008). Lengthweight relationships of 24 fish species from Edremit Bay Aegean Sea. Natural and Applied Sciences 3: 47-51.

Turker Cakir, D., Torcu Koc, H., Erdoğan, Z. (2006) Some biological aspects of the lesser spotted dogfish Scyliorhinus canicula (Linnaeus, 1758) in Edremit Bay (the Northern Aegean Sea) Turkey. In: Proc. of the International Workshop
on Mediterranean Cartilaginous Fish with Emphasis on Southern and Eastern Mediterranean, 14-16 Oct. 2006. Turkish Marine Research Foundation, Istanbul, pp.17-27.

von Bertalanffy, L., (1938) A quantitative theory of organic growth. Hum. Biol, 10: 181-213.

Wootton, R.J. (1990) Ecology of Teleost Fishes. Chapman & Hall, London, 404pp.

Zupanovic, S., Pauly, D. (1961) A preliminary compilation of fish length growth parameters. Berichte des Institut für Meereskunde an der, Universität. Kiel 55: 1-200.