Keban Baraj Gölü Sportif Olta Balıkçılığı Alabalık Turnuvası Değerlendirmesi: Av kompozisyonu ve Verimi

Year 2023, Volume: 19 Issue: 3, 257 - 265, 01.09.2023

Tuncay Ateşşahin , Mehmet Cilbiz

https://doi.org/10.22392/actaquatr.1212438

Abstract

Bu çalışmada, hedef türün alabalık olduğu ve 238 amatör balıkçının katılımı ile 26-27.03.2022 tarihleri arasında, Keban Baraj Gölü’nde gerçekleştirilmiş olan bir sportif olta balıkçılığı turnuvasında yakalanmış olan balıkların av kompozisyonu (I), katılımcıların birim çabaya düşen av miktarlarını (II), uygulanan avcılık tekniğini (III), kullanılan iğnelerin balık vücudunda tutunduğu anatomik bölgelere (IV) ve iğnelerin çıkarılma süreleri ile kanamaya yol açıp açmadığını (V) belirlemek amacıyla yapılmıştır. Alabalık için ilan edilen yasal asgari av boyu olan 25 cm’nin minimum av boyu olarak uygulandığı turnuvada, 25,4 – 49,2 cm total boy ve 180,2 – 2100,5 g total ağırlık aralığında 24 adet alabalık yakalanmıştır. Avın %37,5’inin avlandığı rapala en verimli olta türü iken, %33,4 ile kaşık, %20,8 ile spinner ve %8,3 ile jig izlemiştir. Kullanılan olta tiplerine göre av miktarları arasında istatistiksel farklılık bulunmamıştır (X2=4,39, p>0,05). Yakalanan balıkların ortalama boy ve ağırlık değerleri kullanılan olta tiplerine göre farklılık göstermemiştir (p>0,05). İğnelerin balık vücuduna en yüksek oranda alt çeneden (%66,7) tutunduğu tespit edilmiştir. İğne tipi ile balık vücuduna tutunma noktası arasında istatistiksel farklılık bulunmamıştır (p>0,05). İğnelerin çıkarılması sürecinde avın %83,3’ünde kanama gözlemlenmemiş, kanamaya en yüksek oranda (%75) rapala tipi olta sebep olmuştur. Olta balıkçısı başına saatlik av verimi adet olarak 0,007 (CPUE), ağırlık olarak ta 5,1 g (YPUE) olarak belirlenmiştir. Sonuç olarak ülkemizde yapılan amatör olta balıkçılığı turnuvalarından elde edilecek veriler, sürdürülebilir balıkçılık ve stok yönetimi açısından ihtiyaç duyulan bazı verilerin eksikliğinin giderilmesi bakımından önemli olacaktır.

Keywords

CPUE, YPUE, Olta Balıkçılığı Turnuvası, Oncorhynchus mykiss

Thanks

Yazarlar desteklerinden dolayı Elâzığ Sportif Olta Balıkçıları ve Su Hayatını Koruma Derneği’ne teşekkürlerini sunmaktadırlar. Bu çalışma 6. Ulusal Alabalık Sempozyumunda sözlü sunum olarak sunulmuştur.

Assessment of Amateur Trout Angling Tournament in Keban Dam Lake: Catch Composition and Yield

Abstract

In this study, the catch composition of the fish caught in a sportive angling tournament held in Keban Dam Lake on 26-27.03.2022 with the participation of 238 amateur fishermen and the target species was Rainbow Trout, the catch composition of the fish (I), the amount of catch per unit effort (II), which fishing technique applied (III), the anatomical status of the fish (IV), the times of removal from the hooks and whether they cause bleeding (V). Twenty-four O. mykiss were caught in the tournament, where the legal minimum catch length was 25 cm, with a total length of 25.4 - 49.2 cm and a total weight of 180.2 - 2100.5 g. While 37.5% of the fish caught was Rapala, it was followed by spoon with 33.3%, spinner with 20.8%, and jig with 8.3%. There was no statistical difference between the number of catches according to the fishing hook models used (X2=4.39, p>0.05). The average length and weight values of the caught fish did not differ according to the fishing hook models (p>0.05). It was determined that the hooks were from the highest lower jaw (66.7%) according to the anatomical status of the trout. There was no statistical difference between the hook type and the anatomical status of the fish according to the catch status (p>0.05). Bleeding was not observed in 83.3% of the catch during the removal of the hooks, and the highest rate (75%) was caused by the Rapala hook type. The catch per unit effort for the angler was determined as 0.007 (CPUE) and 5.1 g (YPUE) by weight. As a result, the data to be obtained from the amateur angling tournaments held in our country will be important in terms of eliminating the lack of some data needed in terms of sustainable fishing and stock management.

Keywords

CPUE, YPUE, Olta Balıkçılığı Turnuvası, Oncorhynchus mykiss

References

• Anonim. (2001). Sürdürülebilir Avcılık İçin Temel Eğitim Kitabı, Orman Bakanlığı, Milli Parklar ve Av Yaban Hayatı Genel Müdürlüğü, Eğitim Yayınları-1, Ankara.
• Arlinghaus, R. & Cooke, S. J. (2009). Recreational fisheries: socioeconomic importance, conservation issues and management challenges. In B. Dickson, J. Hutton & W. M. Adams (Eds.), Recreational hunting, conservation and rural livelihoods: science and practice (pp. 39–58). Blackwell Publishing. https://doi.org/10.1002/9781444303179.ch3
• Arlinghaus, R., Cooke, S. J., Lyman, J., Policansky, D., Schwab, A., Suski, C., Sutton, S. G. & Thorstad, E. B. (2007). Understanding the complexity of catch and release in recreational fishing: an integrative synthesis of global knowledge from historical, ethical, social, and biological perspectives. Reviews in Fisheries Science, 15, 75–167. https://doi.org/10.1080/10641260601149432
• Atessahin, T. (2019). Bleeding status, handling time and initial mortality of recreational fisheries in chub (Squalius cephalus) (Linnaeus 1758). Fresenius Environmental Bulletin, 28(4A), 3401-3407.
• Ateşşahin, T. & Cilbiz, M. (2018). Türkiye İç Su Amatör Balıkçılığında ‘Amatör Balıkçı Belgesi’. Journal of Limnology and Freshwater Fisheries Research, 4(2), 103-111. https://doi.org/10.17216/limnofish.374113
• Ateşşahin, T. & Cilbiz, M. (2019). Amatör İç Su Balıkçılarının Sosyo-Demografik Özellikleri: Türkiye Örneği. Turkish Journal of Agriculture - Food Science and Technology, 7(1), 134-141. https://doi.org/10.24925/turjaf.v7i1.134-141.2326
• Aydın, İ. (2011). Is natural bait type a stochastic process for size and condition of fishes in the recreational fishery of İzmir Bay?. Mediterranean Marine Science, 12(2), 390-400.
• Boucek, R. E., Rehage, J. S., Castillo, N. A., Dwoskin, E., Lombardo, S. M., Santos, R., ... & Adams, A. J. (2023). Using recreational tournament records to construct a 53-year time series of the Florida Keys recreational Bonefish fishery. Environmental Biology of Fishes, 106, 279–291.
• BSGM, 2022. 5/2 Numaralı Amatör Amaçlı Su Ürünleri Avcılığının Düzenlenmesi Hakkında Tebliğ, Erişim Tarihi: 25.10. 2022.
• Cooke, S. J. & Cowx, I. G. (2004). The role of recreational fisheries in global fish crises. BioScience, 54, 857–859. https://doi.org/10.1641/0006-3568(2004)054[0857:TRORFI]2.0.CO;2
• Cooke, S. J., Schreer, J. F., Dunmall, K. M. & Philipp, D. P. (2002). Strategies for quantifying sub lethal effects of marine catch and release angling: insights from novel freshwater applications. American Fisheries Society, 121-134. https://doi.org/10.47886/9781888569308.ch16
• Cooke, S. J., Suski, C. D., Arlinghaus, R., & Danylchuk, A. J. (2013). Voluntary institutions and behaviours as alternatives to formal regulations in recreational fisheries management. Fish and Fisheries, 14(4), 439-457.
• Cooke, S. J., Arlinghaus, R., Johnson, B. M., & Cowx, I. G. (2015). Recreational fisheries in inland waters. Freshwater fisheries ecology, 449-465.
• FAO (Food and Agricultural Organization of the United Nations) (2012) Technical Guidelines for Responsible Fisheries: Recreational Fisheries. Rome: Food and Agriculture Organization of the United Nations. 176 pp.
• Gaudin, C., & De Young, C. (2007). Recreational Fisheries in the Mediterranean Countries: a Review of Existing Legal Frameworks, Studies and Reviews. General Fisheries Commission for the Mediterranean, 81, (85 pp.). FAO.
• Markovic, M., Satta, A., Skaricic, Z. & Trumbic, I. (2009). Sustainable Coastal Tourism: An integrated planning and management approach, the Priority Actions Programme Regional Activity Centre (PAP/ RAC), United Nations Environment Programme, Division of Technology, Industry and Economics (UNEP-DTIE) “Practical Manuals on Sustainable Tourism” publication series.
• Muoneke, M. I. & Childress, W. M. (1994). Hooking mortality: a review for recreational fisheries. Reviews in Fisheries Science, 2(2), 123–156. https://doi.org/10.1080/10641269409388555
• Parkkila, K., Arlinghaus, R., Artell, J., Gentner, B., Haider, W., Aas, Q., Barton, D., Roth, E. & Sipponen, M. (2010). Methodologies for assessing socioeconomic benefits of European inland recreational fisheries, FAO European Inland Fisheries Advisory Commission Occasional Paper No: 46, Ankara, FAO, 112 p.
• Paukert, C. P., Klammer, J. A., Pierce, R. B. & Simonson, T. D. (2001) An overview of northern pike regulations in North America. Fisheries. 26(6), 6–13. https://doi.org/10.1577/1548-8446(2001)026<0006:AOONPR>2.0.CO;2
• Pawson, M. G., Glenn, H., & Padda, G. (2008). The definition of marine recreational fishing in Europe. Marine Policy, 32(3), 339-350. https://doi.org/10.1016/j.marpol.2007.07.001
• RStudio Team. RStudio: Integrated Development Environment for R [Internet]. Boston, MA; 2022. http://www.rstudio.com/
• Radomski, P. J., Grant, G. C., Jacobson, P. C., & Cook, M. F. (2001). Visions for recreational fishing regulations. Fisheries, 26(5), 7-18. https://doi.org/10.1016/j.marpol.2007.07.001
• Skov, C., Gundelund, C., Weltersbach, M. S., Ferter, K., Bertelsen, S. K., & Jepsen, N. (2022). Catch and release angling for sea trout explored by citizen science: Angler behavior, hooking location and bleeding patterns. Fisheries Research, 255, 106451. https://doi.org/10.1016/j.fishres.2022.106451
• Sutinen, J,G., Jhonston, R.J., 2003. Angling management organizations: integrating the recreational sector into fishery management, Marine Policy, 27:471-487, https://doi.org/10.1016/S0308-597X(03)00079-4