A preliminary study on the potential use of an alternative bait for demersal longline fishery; Sepietta sp.
Year 2016, Volume: 33 Issue: 2, 163 - 167, 15.05.2016Abstract
Abstract: : This study was carried out between September 2007 and April 2008 in the Aegean Sea with an experimental longline. Traditional baits such as Sardina pilchardus and Solen vagina were used with Sepietta sp. which is a discarded species from Aegean Sea demersal trawl fishery. 438 individuals belonging to 6 families were obtained and they totally weighed 43.1 kg. It was determined that almost half of the specimens were captured by Sepietta sp. Furthermore individuals caught by this alternative bait composed 45% of the total catch in terms of weight. Results showed that Sepietta sp. was the most efficient bait among all baits used in the study. The use of this species as a bait in longline fishery has also another importance from the perspective of evaluating a trawl discarded species.
References
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- Bjordal, A. (2002). The use of technical measures in responsible fisheries: regulation of fishing gear. In: A fishery manager's guidebook-management measures and their application, Cochrane, K.L.(ed), FAO Fisheries Technical Paper 424, Rome, 21-48.
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- Løkkeborg, S. (2000). Fish behaviour and gear improvement in longlining. Fishing gear system 2000 Scottish Exhibition and Conference Centre, Glasgow, Scotland.
- Løkkeborg, S. & Pina, T. (1997). Effects of setting time setting direction and soak time on longline catch rates. Fisheries Research, 32(1): 213-222. doi: 10.1016/S0165-7836(97)00070-2
- Løkkeborg, S. & Bjordal, A. (1992). Species and size selectivity in longline fishing: a review. Fisheries Research, 13(3): 311-322.
- doi: 10.1016/0165-7836(92)90084-7
- Özdemir, S., Ayaz, A., Gurbet, R. & Erdem, Y. (2006). Catch efficiency of bottom longline used with different hook size and different type bait at dawn and daytime (in Turkish with English abstract). Anadolu University Journal of Science and Technology, 7 (2): 405-411.
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- Ulaş A. & Düzbastılar, F. O. (2001). Comparison of catch efficiency of different longlines (in Turkish with English abstract). Ege Journal of Fisheries and Aquatic Sciences, 18(1-2): 175-186.
Ozan Soykan* • İlker Aydın • Hasan Tuncay Kınacıgil
Year 2016, Volume: 33 Issue: 2, 163 - 167, 15.05.2016Abstract
Bu çalışma Eylül 2007-Nisan 2008 tarihleri arasında deneysel amaçlı hazırlanmış bir paragat takımıyla Ege Denizi’nde gerçekleştirilmiştir. Geleneksel yemler olan Sardina pilchardus ve Solen vagina, Ege Denizi demersal trol avcılığında ıskarta edilen bir yem olan Sepietta sp. ile birlikte kullanılmıştır. Altı familyaya ait toplam 438 birey yakalanmış ve toplam ağırlıkları 43,1 kg olarak bulunmuştur. Yakalanan bireylerin yarısına yakın kısmı Sepietta sp. ile yakalanmıştır. Bununla beraber bu alternatif yem ile yakalanan bireyler toplam avın ağırlık olarak %45’ini oluşturmuşlardır. Sonuçlar Sepietta sp.’nin tüm yemler içinde en etkili yem olduğunu göstermiştir. Bu türün paragat balıkçılığında yem olarak kullanımının, trol avcılığından ıskarta edilen bir türün değerlendirilmesi açısından ayrı bir önemi bulunmaktadır
Keywords
References
- Anonymous, (2012). Fisheries regulation for marine and fresh waters for commercial fishery, 2012-2016 fishing period No: 3/1 (in Turkish). Ministry of Agriculture and Rural Affair of Turkey, Protect and Control General Office, Ankara, p. 85.
- Bjordal, A. (2002). The use of technical measures in responsible fisheries: regulation of fishing gear. In: A fishery manager's guidebook-management measures and their application, Cochrane, K.L.(ed), FAO Fisheries Technical Paper 424, Rome, 21-48.
- Çekiç, M. & Başusta, N. (2004). Effect on the species selectivity of different bait and hook size in longline in Iskenderun Bay, eastern Mediterranean Sea (in Turkish with English abstract). Ege Journal of Fisheries and Aquatic Sciences, 21(1-2): 73-77.
- FAO (2005). Cephalopods of The World: An Annotated And Illustrated Catalogue Of Cephalopod Species Known To Date, Volume 1. Chambered nautiluses and sepioids. Rome, 649 pp.
- Godøy, H., Furevik, D. & Lokkeborg, S. (2003). Reduced by catch of red king crab (Paralithodes camtschaticus) in the gillnet fishery for cod (Gadus morhua) in northern Norway. Fisheries Research, 62: 337-384. doi: 10.1016/S0165-7836(02)00281-3
- Hameed, M. S. & Boopendranath, M. R. (2000). Modern Fishing Gear Technology, Daya publishing house, Delhi. 186 pp.
- He, P. (1996). Bait loss from bottom-set longlines as determined by underwater observations and comparative fishing trials. Fisheries research, 27(1): 29-36. doi: 10.1016/0165-7836(96)00477-8
- Jacobsen, J.H. & Joensen, J. (2004). Comparison of bait in longline fishery. Bsc thesis. University of Faroe Islands, 54 pp.
- Kınacıgil, H.T., İlkyaz, A.T., Metin, G., Ulaş, A., Soykan, O., Akyol, O. & Gurbet, R. (2008). “Balıkçılık Yönetimi Açısından Ege Denizi Demersal Balık Stoklarının İlk Üreme Boyları, Yaşları ve Büyüme Parametrelerinin Tespiti”, TÜBİTAK, ÇAYDAG-103Y132 nolu Proje Kesin Raporu, 327 s.
- Løkkeborg, S. (1989). Longline bait: fish behaviour and the influence of attractant release rate and bait appearance. Dr. Sc. Thesis, University of Bergen, 109 pp.
- Løkkeborg, S. (2000). Fish behaviour and gear improvement in longlining. Fishing gear system 2000 Scottish Exhibition and Conference Centre, Glasgow, Scotland.
- Løkkeborg, S. & Pina, T. (1997). Effects of setting time setting direction and soak time on longline catch rates. Fisheries Research, 32(1): 213-222. doi: 10.1016/S0165-7836(97)00070-2
- Løkkeborg, S. & Bjordal, A. (1992). Species and size selectivity in longline fishing: a review. Fisheries Research, 13(3): 311-322.
- doi: 10.1016/0165-7836(92)90084-7
- Özdemir, S., Ayaz, A., Gurbet, R. & Erdem, Y. (2006). Catch efficiency of bottom longline used with different hook size and different type bait at dawn and daytime (in Turkish with English abstract). Anadolu University Journal of Science and Technology, 7 (2): 405-411.
- Sealifebase. (2016). Palomares, M.L.D. and Pauly, D., Editors. SeaLifeBase. World Wide Web electronic publication, <http://www.sealifebase.org/>.
- Soykan, O. (2011). Seasonal distribution of by-catch species in Sığacık Bay by demersal trawl (in Turkish with English abstract), Ph.D. thesis, Ege University, Graduate School of Natural and Applied Sciences, 111p.
- TUIK (Turkish Statistical Institute). (2013). Fishery statistics 2013, Ankara.
- Ulaş A. & Düzbastılar, F. O. (2001). Comparison of catch efficiency of different longlines (in Turkish with English abstract). Ege Journal of Fisheries and Aquatic Sciences, 18(1-2): 175-186.
Details
| Journal Section | Short Communications |
|---|---|
| Authors |
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| Publication Date | May 15, 2016 |
| Submission Date | May 15, 2016 |
| Acceptance Date | |
| Published in Issue | Year 2016Volume: 33 Issue: 2 |