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

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.

Anahtar Kelimeler:

CPUE, YPUE, Olta Balıkçılığı Turnuvası, Oncorhynchus mykiss

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

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,

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