Cetacean sightings in the Finike Seamounts area and adjacent waters during the surveys in 2021

Cetacean sightings in the Finike Seamounts area and adjacent waters during the surveys in 2021

Ayhan Dede, Ayaka Amaha Öztürk, Arda M. Tonay,  Uğur Özsandıkçı, Onur Gönülal, Bayram Öztürk

ORCID IDs: A.D. 0000-0002-7712-615X; A.A.Ö. 0000-0003-2281-7372; A.M.T. 0000-0003-2718-9328; U.Ö 0000-0002-7246-5494; O.G. 0000-0002-5559-3953;
B.Ö. 0000-0001-7844-2448

Faculty of Aquatic Sciences, Istanbul University, Onaltı Mart Şehitleri Cad. No: 2, 34134, Fatih, Istanbul, TÜRKİYE
Turkish Marine Research Foundation (TUDAV), P.O. Box: 10, Beykoz, Istanbul, TÜRKİYE
Faculty of Fisheries, Sinop University, Sinop, TÜRKİYE


The Finike Seamounts (Anaximander) was declared as the “Finike Seamounts Special Environmental Protection Area (SEPA)” by Republic of Türkiye in 2013. In order to determine the presence of cetaceans living in the region and its adjacent waters, visual observations were carried out with the standard line transect method as well as passive acoustic recordings at 21 stations in two boat surveys in spring and autumn 2021. A total of 1621 nautical miles were covered in both surveys. Sperm whales were detected visually and acoustically. Other deep-diving species, Cuvier’s beaked whale, was observed once, as well as delphinid species, such as the striped dolphins (two groups) and bottlenose dolphins (7 groups). Delphinids were also detected acoustically in 8 stations. Although the surveys were made only in two seasons in one year, it was shown that the cetaceans use the surveyed area and their presence must be taken into consideration in the management of the Finike Seamounts SEPA.

Keywords: Eastern Mediterranean Sea, SEPA, dolphin, whale, Anaximander

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ACCOBAMS (2010) Cetaceans Critical Habitats (CCH). MOP4/2010/Res 4.15). Available at: https://accobams.org/conservations-action/protected-areas/ (accessed 20 July 2022).

ACCOBAMS (2019) Resolution 7.13 Anthropogenic Noise. Available at: ACCOBAMS-MOP7/2019/Doc38/Annex15/Res.7.13 (accessed 20 July 2022).

ACCOBAMS (2021) Estimates of abundance and distribution of cetaceans, marine mega-fauna and marine litter in the Mediterranean Sea from 2018-2019 surveys. (eds., Panigada, S., Boisseau, O., Canadas, A., Lambert, C., Laran, S., McLanaghan, R., Moscrop, A.) ACCOBAMS – ACCOBAMS Survey Initiative Project, Monaco.

Akkaya, A., Awbery, T., Lyne, P., Yalçın, D.G., Usta, C. (2022) The importance of long-term monitoring of cetaceans in the data deficient regions of the Mediterranean Sea. 33rd Conference of the European Cetacean Society, Israel.

Akkaya, A., Lyne, P., Schulz, X., Awbery, T., Capitain, S., Rosell, B. F.,Yıldırım, B., lkılınç, C., Vigliano Relva J., Clark, H., van Walsum, L., Gordon, J. (2020) Preliminary results of cetacean sightings in the eastern Mediterranean Sea of Turkey. Journal of the Black Sea/Mediterranean Environment 26(1): 26-47.

Alexiadou, P., Foskolos, I., Frantzis, A. (2019) Ingestion of macroplastics by Odontocetes of the Greek Seas, Eastern Mediterranean: Often deadly. Marine Pollution Bulletin 146: 67-75.

Arranz, P., DeRuiter, S.L., Stimpert, A.K., Neves, S., Friedlaender, A.S., Goldbogen, J.A., Visser, F., Calambokidis, J., Southall, B.L., Tyack, P.L. (2016) Discrimination of fast click-series produced by tagged Risso’s dolphins (Grampus griseus) for echolocation or communication. Journal of Experimental Biology 219(18): 2898-2907.

Awbery, T., Akkaya, A., Lyne, P., Rudd, L., Hoogenstrijd, G., Nedelcu, M., Kniha, D., Erdoğan, M.A., Persad, C., Amaha Öztürk, A., Öztürk, B. (2022) Spatial distribution and encounter rates of delphinids and deep diving cetaceans in the eastern Mediterranean Sea of Turkey and the extent of overlap with areas of dense marine traffic. Frontiers in Marine Science 9: 860242.

Azzolin, M., Gannier, A., Lammers, M.O., Oswald, J.N., Papale, E., Buscaino, G., Buffa, G., Mazzola, S., Giacoma, C. (2014) Combining whistle acoustic parameters to discriminate Mediterranean odontocetes during passive acoustic monitoring. The Journal of the Acoustical Society of America 135(1): 502-512.

Boisseau, O., Lacey, C., Lewis, T., Moscrop, A., Danbolt, M., McLanaghan, R. (2010) Encounter rates of cetaceans in the Mediterranean Sea and contiguous Atlantic area. Journal of the Marine Biological Association of the United Kingdom 90(8): 1589.

Buckland, S.T., Anderson, D.R., Burnham, K.P., Laake, J.L., Borchers, D.L., Thomas, L. (2001) Introduction to Distance Sampling: Estimating Abundance of Biological Populations. Oxford University Press, New York.

Buckstaff, K.C. (2004) Effects of watercraft noise on the acoustic behavior of bottlenose dolphins, Tursiops truncatus, in Sarasota Bay, Florida. Marine Mammal Science 20: 709-725.

Caruso, F., Sciacca, V., Parisi, I., Viola, S., de Vincenzi, G., Bocconcelli, A., Mooney, T.A., Sayigh, L., Li, S., Filiciotto, F., Moulins, A. (2019) Acoustic recordings of rough-toothed dolphin (Steno bredanensis) offshore eastern Sicily (Mediterranean Sea). The Journal of the Acoustical Society of America 146(3): 286-292.

Corkeron, P.J., Van Parijs, S.M. (2001) Vocalizations of eastern Australian Risso’s dolphins, Grampus griseus. Canadian Journal of Zoology 79(1): 160-164.

Dede, A., Saad, A., Fakhri, M., Öztürk, B. (2012) Cetacean sightings in the eastern Mediterranean Sea during the cruise in summer 2008. Journal of the Black Sea/Mediterranean Environment 18(1): 49-57

Ding, W., Wuersig, B., Evans, W.E. (1995) Whistles of bottlenose dolphins: Comparisons among populations. Aquatic Mammals 21: 65-77.

Erbe, C. (2013) Underwater passive acoustic monitoring and noise impacts on marine fauna – a workshop report. Acoustics Australia 41(1): 113-119.

Erbe, C., Dunlop, R., Jenner, K.C.S., Jenner, M.N., McCauley, R.D., Parnum, I., Parsons, M., Rogers, T., Salgado-Kent, C. (2017) Review of underwater and in-air sounds emitted by Australian and Antarctic marine mammals. Acoustics Australia 45(2): 179-241.

Frantzis, A., Alexiadou, P., Gkikopoulou, K. (2014) Sperm whale occurrernce, site fidelity and population structure along the Hellenic Trench (Greece, Mediterranean Sea). Aquatic Conservation: Marine and Freshwater Ecosystems 24(S1): 83-102.

Frantzis, A., Leaper, R., Alexiadou, P., Prospathopoulos, A., Lekkas, D. (2019) Shipping routes through core habitat of endangered sperm whales along the Hellenic Trench, Greece: Can we reduce collision risks? PloS One 14(2): e0212016.

IUCN-MMPATF (2017) Hellenic Trench IMMA. Full Accounts of Mediterranean IMMA Factsheet. IUCN Joint SSC/WCPA Marine Mammal Protected Areas Task Force, 2017. Available at: https://www.marinemammalhabitat.org/portfolio-item/hellenic-trench/ (accessed 20 July 2022).

Kapiris, K., Otero, M, Christidis, G., Thasitis, I., Gücü, A.C., Lteif, M., Ali, M., Farrag, M.M.S., Dokos, J., Kavadas, S., Schüler, M. (2022) Deep-sea Cetaceans and Sea Turtles. Vulnerable Megafauna. In: Deep-sea Atlas of the Eastern Mediterranean Sea (eds., Otero, M., Mytilineou, C.) IUCN-HCMR DeepEastMed Project, IUCN. pp. 207-237.

Kruse, S., Caldwell, D.K., Caldwell, M.C. (1999) Risso’s dolphin Grampus griseus G. Cuvier, 1812. In: Handbook of Marine Mammals (eds., Ridgway, S. H., Harrison R.) Academic, Cambridge. pp. 183-212.

Lammers, M.O., Au, W.W.L., Herzing, D.L. (2003) The broadband social acoustic signaling behavior of spinner and spotted dolphins. The Journal of the Acoustical Society of America 14: 1629-1639.

Madsen, P.T., Kerr, I., Payne, R. (2004) Echolocation clicks of two free-ranging delphinids with different food preferences: False killer whales Pseudorca crassidens and Risso’s dolphin Grampus griseus. The Journal of Experimental Biology 207: 1811-1823.

Madsen, P.T., Payne, R., Kristiansen, N.U., Wahlberg, M., Kerr, I., Møhl, B. (2002) Sperm whale sound production studied with ultrasound time/depth recording tags. The Journal of Experimental Biology 205: 1899-1906.

Marques, T.A., Thomas, L., Ward, J., Di Marzio, N., Tyack, P.L. (2009) Estimating cetacean population density using fixed passive acoustic sensors: An example with Blainville’s beaked whales. The Journal of the Acoustical Society of America 125(4): 1982-1994.

May-Collado, L.J., Wartzok, D. (2008) A comparison of bottlenose dolphin whistles in the Atlantic Ocean: Factors promoting whistle variation. Journal of Mammalogy 89: 1229-1240.

NAVTEX (2021) Weekly Notices to Mariners Bulletin 10, 26, 39/2021, Office of Navigation, Hydrography and Oceanography, Turkey.

Notarbartolo Di Sciara, G., Frantzis, A., Bearzi, G., Reeves, R.R. (2012) Physeter microcephalus Mediterranean subpopulation. In: The IUCN Red List of Threatened Species 2012. p. e.T16370739A16370477.

Official Gazette (2013) Finike Seamounts Special Environmental Protection Area, 16.08.2013, No: 28737. Available at: https://www.resmigazete.gov.tr/eskiler/2013/08/20130816-3.htm (accessed 20 Mar 2022).

Oliveira, C., Wahlberg, M., Johnson, M., Miller, P.J.O., Madsen, P.T. (2013) The function of male sperm whale slow clicks in a high latitude habitat: Communication, echolocation or prey debilitation? The Journal of the Acoustical Society of America 133(5): 3135-3144.

Oswald, J.N., Barlow, J., Norris, T.F. (2003) Acoustic identification of nine delphinid species in the eastern tropical pacific ocean. Marine Mammal Science 19(1): 20-37.

Öztürk, B. (2009) Marine protected areas in the high seas of the Aegean and Eastern Mediterranean Seas, some proposals. Journal of the Black Sea/Mediterranean Environment 15: 69-82.

Öztürk, B., Topçu, E., Topaloglu, B. (2012) The Submarine Canyons of the Rhodes Basin and the Mediterranean Coast of Turkey. In: Mediterranean Submarine Canyons: Ecology and Governance. (ed., Wurtz, M.) IUCN, Gland and Malaga, pp. 65-71.

Öztürk, A.A., Tonay, A.M., Dede, A. (2013) Sperm whale (Physeter macrocephalus) sightings in the Aegean and Mediterranean part of Turkish waters. Journal of the Black Sea/Mediterranean Environment 19(2): 168-176.

Papale, E., Azzolin, M., Cascao, I., Gannier, A., Lammers, M.O., Martin, V. M., Oswald, J., Perez Gil, M., Prieto, R., Silva, M., Giacoma, C. (2013) Geographic variability in the acoustic parameters of striped dolphin’s (Stenella coeruleoalba) whistles. The Journal of the Acoustical Society of America 133(2): 1126-1134.

Pavan, G., Hayward, T.J., Borsani, J.F., Priano, M., Manghi, M., Fossati, C., Gordon, J. (2000) Time patterns of sperm whale codas recorded in the Mediterranean Sea 1985-1996. The Journal of the Acoustical Society of America 107(6): 3487-3495.

Rankin, S., Oswald, J.N., Simonis, A.E., Barlow, J. (2015) Vocalizations of the rough‐toothed dolphin, Steno bredanensis, in the Pacific Ocean. Marine Mammal Science 31(4): 1538-1548.

Ryan, C., Cucknell, A.C., Romagosa, M., Boisseau, O., Moscrop, A., Frantzis, A., McLanaghan, R. (2014) A visual and acoustic survey for marine mammals in the eastern Mediterranean Sea during summer 2013. Funded by the International Fund for Animal Welfare with additional support from Pelagos Cetacean Research Institute. Marine Conservation Research International, UK.

Schultz, K.W., Corkeron, P.J. (1994) Interspecific differences in whistles produced by inshore dolphins in Moreton Bay, Queensland, Australia. Canadian Journal of Zoology 72: 1061-1068.

Seabra de Lima, I.M., de Andrade, L.G., Ramos de Carvalho, R., Lailson-Brito, J., de Freitas Azevedo, A. (2012) Characteristics of whistles from rough-toothed dolphins (Steno bredanensis) in Rio de Janeiro coast, southeastern Brazil. The Journal of the Acoustical Society of America 131(5): 4173-4181.

Simard, F., Würtz, M. (2012) Approaching the Conservation Issues of the Mediterranean Submarine Canyons. In: Mediterranean Submarine Canyons: Ecology and Governance, (ed., Würtz, M.) IUCN, pp. 207-211.

Thomas, L., Buckland, S.T., Rexstad, E.A., Laake, J.L., Strindberg, S., Hedley, S.L., Bishop, J.R.B., Marques, T.A., Burnham, K.P. (2010) Distance software: design and analysis of distance sampling surveys for estimating population size. Journal of Applied Ecology 47: 5-14.

Tonay, A.M., Öztürk Amaha, A., Salman, A., Dede, A., Danyer Aytemiz, I., Danyer, E., Öztürk, B. (2021) Stranding records of sperm whale (Physeter macrocephalus) on the Turkish coast in 2019-2020 with a note on the opportunistic sampling of stomach content. Journal of the Black Sea/Mediterranean Environment 27(3): 281-293.

Whitehead, H., Weilgart, L. (1991) Patterns of visually observable behaviour and vocalizations in groups of female sperm whales. Behaviour 118(3/4): 275-296.

Woodside, J.M., David, L., Frantzis, A., Hooker, S.K. (2006) Gouge marks on deep-sea mud volcanoes in the eastern Mediterranean: Caused by Cuvier’s beaked whales? Deep Sea Research Part I: Oceanographic Research Papers 53(11): 1762-1771.

WWF-IUCN-IWC-OceanMind (2019) WWF-IUCN-IWC-OceanMind: A Geospatial Analysis of Vessel Traffic in Important Marine Mammal Areas. Available at: https://www.marinemammalhabitat.org/mmpatf/activities/geospatial-analysis-of-threats/ (accessed 27 Apr 2021).