Discard composition of the bottom trawl fishery in Babadıllimanı Bight, Mersin, Turkey (northeastern Mediterranean)

Hacer YELDAN, Erdoğan ÇİÇEK, Dursun AVŞAR, Meltem MANAŞIRLI

Abstract


This research aimed to estimate the composition of discards from the bottom trawl fishery in Babadillimani Bight (Cilician Basin, Northern Mediterranean). During May 1999 to April 2000, a deep trawl net was used with a one-hour haul duration in each depth zone per month. A total of 89 fish, seven cephalopods, and 24 crustacean species were captured. The proportion of the total harvest that was discarded varied each month, ranging from 30.97% to 71.68%, with an average of 58.2%. The mean discard proportion of the total yield decreased with increasing depth, being 30.5%, 22.0%, and 5.5% in the 0–50 m, 50–100 m, and deeper than 100 m zones respectively. Crustaceans made up the largest proportion of the total discards (53.3%), followed by fish (42.3%), and cephalopods (4.4%).

Keywords


Bottom trawling, Northeastern Mediterranean, Discard, Fish, Crustacea, Cephalopoda

Full Text:

PDF

References


Aasen, O. & E. Akyuz. 1956. Some data concerning fisheries in the Iskenderun Bay. Rep. Fish. Rec. Con. Istanbul, 1 (4): 1-8.

Akyuz, E. 1957. Observations on the Iskenderun red mullet (Mullus barbatus) and its environment. Proc. Gen. Coun. Med. 4: 305-326.

Alverson, D.-L., M.-H. Freeberg, S.-K. Murawski & J.-G. Pope. 1994. A global assessment of fisheies by-catch and discards, FAO, Rome, 322pp.

Anonymous. 1993. Marmara, Ege ve Akdeniz Demersal Balıkçılık Kaynakları Sörvey Raporu. (Survey report of the demersal fishery resources of the Sea of Marmara, Aegean Sea and Mediterranean Sea). Japon Uluslararası İşbirliği Ajansı (JICA), T.C. Tarım ve Köyişleri Bakanlığı, Tarımsal Üretim ve Geliştirme Genel Müdürlüğü, 579pp.

Avsar, D. 1994. Diel diet and feeding behaviour of scadfish (Arnoglossus laterna WALBAUM, 1792) in the Bay of Mersin. Acta Adriatica, 34 (1/2): 89-101.

Avsar, D. 1995. Application of Mahalonobis Distance Function for the morphometric separation of spotted flonder (Citharus linguatula LINNAEUS, 1758) stock in the Gulf of Mersin. Israel Journal of Zoology. 41: 581-589.

Avsar, D., F. Bingel & M. Unsal. 1988a. Application of Mahalonobis Distance Function for the morphometric separation of scardfish (Arnoglossus laterna WALBAUM) stocks in the Gulf of Mersin. Doga, 12 (2): 87-92.

Avsar, D., F. Bingel & M. Unsal. 1988b. Application of Mahalonobis Distance Function for the morphometric separation of silverbelly (Leiognathus klunzingeri STEINDACHNER) stock in the Gulf of Mersin. Acta Adriatica, 29 (1/2): 153-160.

Avsar, D., F. Bingel & M. Unsal. 1990. Application of Mahalonobis Distance Function for the morphometric separation of lizardfish (Saurida undosquamis RICHARDSON) stocks in the Gulf of Mersin. Metu Journal of Pure and Applied Science, 20 (3): 311-320.

Bingel, F. 1984. Final report of the fisheries development project in Erdemli-Icel region. Project No: 80070010, IMS-METU, 154pp.

Bingel, F. 1987. Final report of the quantitative fishery project in the coastal fishing ground of the northeastern Mediterranean. IMS-METU, Erdemli-ICEL, 312.

Bingel, F. 1982. Penaid shrimp fisheries in eastern Mediterranean, management and problems. IMS-METU, Erdemli-Icel, 23pp.

Bingel, F., D. Avsar & M. Unsal. 1987. A note on plastic materials in trawl catches in the north-eastern Mediterranean, Meeresfersch, 31: 227-233.

Bingel, F., 1987. Doğu Akdeniz’de Kıyı Balıkçılığı Av Alanlarının Sayısal Balıkçılık Projesi Kesin Raporu. (Project on fishing areas of coastal fisheries located on eastern Mediterranean). ODTÜ, Erdemli Deniz Bilimleri Enstitüsü, Erdemli, ICEL, 312pp.

Bingel, F., E. Ozsoy & U. Unluata. 1993. A review of the state of the fisheries and the environment of the Northeastern Mediterranean (northern Levantine Basin), Studies and Reviews, General Fisheries Council for the Mediterranean, FAO Rome, No: 65, 74pp.

Bozzano, A. & F. Sarda. 2002. Fishery discard consumption rate and scavenging activity in the northwestern Mediterranean Sea, ICES Journal of Marine Science, 59: 15-28.

Caddy, J,-F. 1993. Some future perspectives for assessment and management of Mediterranean fisheries, Sci. Mar, 57, (2-3): 121-130.

Fischer, W., M.-L. Bauchot & M. Schneider. (redacteurs) 1987a. Fiches FAO d’identification des Especes Pour les Besoins Dela Pe’che. (Révision I) Méditerranée et mer Noire. Zone de péche 37. Volume I. Végétaux et Invertébrés. Publication préparée par la FAO, résultat d’un accord entre la FAO et la Commission des Communautées Européennes (project GCP/INT/422/EEC) financée conjontement par ces deux organisations. FAO, ROME, Vol. I, 760pp.

Fischer, W., M.-L. Bauchot & M. Schneider. (redacteurs) 1987b. Fiches FAO d’identification des especes pour les besoins dela pe’che. (Révision I) Méditerranée et mer Noire. Zone de Peche 37. Volume II. Ve’rtebre’s. Publication préparée par la FAO, résultat d’un accord entre la FAO et la Com. Des Communautées Européennes (project GCP/INT/422/EEC) financée conjontement par ces deux organisations. Rome, FAO, II: 761-1530pp.

Gucu, A. C. 1995. A box model for the basic elements northeastern Mediterranean Sea trawl fishery. Israel Journal of Zoology. 41: 551-567.

Gucu, A. C. & F. Bingel. 1994. State of the fisheries along the Turkish Mediterranean coast. Turkish Journal of Zoology, 18: 251-258.

Gucu, A. C., F. Bingel. D. Avsar & N. Uysal. 1994. Distribution and occurrence of Red Sea fish at the Turkish Mediterranean coast-Northern Cilician Basin. Acta Adriatica, 34 (1/2): 103-113.

Kumlu, M., D. Avsar. T. Eroldogan & N. Basusta. 1999. Some biological aspects of penaid shrimps inhabiting Yumurtalık Bight in Iskenderun Bay (northeastern Mediterranean). Turkish Journal of Zoology, 23: 53-59.

Ozutok, M. & Avsar, D. 2003. Reproduction of the silverbelly (Leiognathus klunzingeri STEINDACHNER, 1898) in Yumurtalık Bight (Adana), TURKEY. Turkish Journal of Veterinary and Animal Science, 27 (6):1383-1389.

Whitehead, P.J.P., M. -L. Bauchot, J.-C. Hureau, J. Nielsen & E. Tortonese. (Eds.). 1984. Fishes of the North-Eastern Atlantic and the Mediterranean. Richard Clay Ltd, I: 1-510pp.

Whitehead, P.J.P., M. -L. Bauchot, J.-C. Hureau, J. Nielsen & E. Tortonese. (Eds.). 1986a. Fishes of the North-Eastern Atlantic and the Mediterranean. Richard Clay Ltd, II: 511-1007pp.

Whitehead, P.J.P., M. -L. Bauchot, J.-C. Hureau, J. Nielsen & E. Tortonese. (Eds.). 1986b. Fishes of the North-Eastern Atlantic and the Mediterranean. UNESCO, Paris, III: 1008-1473pp.

Yeldan, H. & D. Avsar. 1999. A preliminary study on the reproduction of the Rabbit-fish (Siganus rivulatus (FORSSKAL, 1775)) in the northeastern Mediterranean. Turkish Journal of Zoology, 24: 173-182.


Refbacks

  • There are currently no refbacks.