DISTRIBUTION OF THE ICHTHYO-JELLYPLANKTON MNEMIOPSIS LEIDYI (AGASSIZ, 1865) IN THE MARMARA SEA
01/30/2019Distribution of the ichthyo-jellyplankton Mnemiopsis leidyi (Agassiz, 1865) in the Marmara Sea
Tamara Shiganova, Ahmet N. Tarkan, Ayhan Dede, Mustafa Cebeci
Institute of Oceanology, Academy of Science, Moscow, RUSSIA
University of lstanbul, Faculty of Aquatic Products, Beyazıt, Istanbul, TURKEY
Department of Navigation, Hydrography and Oceanography, 81647 Çubuklu, Beykoz, Istanbul, TURKEY
Abstract
In this study, the distribution and the abundance of the abundance of Ctenophora Mnemiopsis leidyi in the Sea of Marmara are investigated. Samples were taken vertically and from surface from 16 stations with special plankton nets. They were determined taxonomically and separated into three different size groups. According to vertical sampling the abundance of M. leidyi was fowld to be approximately 4.3 kg/m 2 near the Bosphorus and 9.7 kg/m 2 near the Dardanelles. According to the surface samples, the abundance was 0.5-0.7 kg/catch in near Bosphorus and 11-13 kg/catch in Dardanelles. It was determined that the population of M. leidyi was distributed between 10 and 30 m. water depth and there were no fish eggs or larvae in the area.
Keywords: Mnemiopsis leidyi, Bosphorus, Marmara Sea, Dardanelles
References
Artüz, İ. (1991) Marmara Denizi’nde taraklı medüz, Cumhuriyet, Bilim Teknik Dergisi, Ekim, 571. 9
Caddy, J.F and Griffiths, R.C. (1990) A perspective on recent fishery related events in the Black Sea / Studies and reviews. FAO, GFCM, N: 63, p: 43-71, Rome, Italy.
Cebeci, M. And Tarkan, N. (1990) Marmara Denizi’nde zooplankton organizmaların dağılımı, İ.Ü. Su Ürünleri Dergisi 4: (1) 69.
Öztürk, B. (1992) Akdeniz Foku, Anahtar yayınları. İstanbul, p. 161.
Oven, L.S., Gordina, A.D., Gragosov, V.E., Klinova, T.N., Luschina, V.G. and Shevchenko, N.F. (1991) The present state of the explaitable fishery stocks in the Black Sea/Variability of the Black Sea ecosystem. (in russ.) Okeanologia, Moscow. 31: 241-247.
Rass, T.S. (1992) Fish resources of the Black Sea and their changes, (in russ.) Okeanology 32(2): 293-302.
Studenikina, E.I., Volovik, S.P., Mirsoyan, I.A. and Luts, G.I. (1991) Mnemiopsis leidyi in the Azov Sea. (in russ.) Okeanologia, Moscow. 31(6): 973-980.
Tsikhon-Lukanina, E.A., Reznichenko, O.G. and Lukasheva, T.A. (1991a) Quantative aspects of feeding in the Black Sea Ctenophore Mnemiopsis leidyi (in russ.) Okeanologia, Moscow. 31(2): 272-276.
Tsikhon-Lukanina, E.A. and Reznichenko, O.G. (1991b) Pecularities of feeding in different size specimens of Ctenophore Mnemiopsis leidyi in the Black Sea (in russ.) Okeanologia, Moscow. 31(3): 442-446.
Tsikhon-Lukanina, E.A., Reznichenko, O.G. and Lukasheva, T.A. (1992) What Ctenophore Mnemiopsis leidyi eats in the Black Sea in shore waters (in russ.) Okeanologia, Moscow. 322(4): 724-730.
Vinogradov, M.E. and Shushkina, E.A. (1982) Concentration estimation of the Black Sea jellyfishes, Ctenophora and Calamus on the observations from “Argus” submersible. (in russ.) Okeanologia, Moscow. 22(3): 473-479.
Vinogradov, M.E., Shushkina, E.A., Musaeva, E.I. and Sorokin, P. Yu. (1989) Ctenophore Mnemiopsis leidyi (A. Agassis) (Ctenophora lobata). New settlers in the Black Sea. (in russ) Okeanologia, Moscow. 29(2): 293-299.
Vinogradov, M.E. and Shushkina, E.A. (1992) Temporary changes of the zooplankton community structure in the open parts of the Black Sea (in russ.) Okeanologia, Moscow. 32(4): 709-717.