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Orta Karadeniz’de (Türkiye) Palamut Balığının, Sarda sarda (Bloch, 1793) BoyAğırlıkİlişkisi, Fulton’un Kondisyon Faktörü ve Et Verimi

Year 2017, Volume: 3 Issue: 1, 42 - 48, 01.11.2017

Abstract

Karadeniz’den Eylül 2016 ve Aralık 2016 arasında özellikle Sinop balıkçı limanına ticari uzatma ağları ve gırgır balıkçılığından getirilen toplam 271 palamut balığı toplanmıştır. Palamut bireylerinin boy ve ağırlığı 15,4 cm’den 47,6 cm’e (ortalama: 34,6 ±0,38 cm) ve 72 g’dan 1288,8 g’a (ortalama: 506,7 ±19 g) değişmiştir. Boy-ağırlık ilişkisi W = 0,0028 × TL3,3763 (R2= 0,9744) olarak hesaplanmıştır. Et verimi oranı %42,2’den %79,7’ye (ortalama: %69) değişmiştir. Fulton’un kondisyon faktörü (K) ise 0,816’dan 1,972’ye (ortalama: 1,066 ±0,008) değişmiştir. Sonuçlar Karadeniz ve Marmara Denizi’nde palamut populasyonlarının Lmaks, Wmaks ve a ve b değerleri bakımından oldukça büyük boyut ve iyi kondisyona sahip olduğunu göstermektedir. Buna ilave olarak, bu çalışmada K değeri >36 cm balıklardan daha büyük boylu olanlarda artmaktadır. Ancak, 25 cm olan minimum karaya çıkarma boyu önceki bir çalışmada erkekler için 37 cm, dişiler için 42,5 cm olduğundan mantıklı değildir. Bu çalışmada, minimum karaya çıkarma boyu olan 25 cm nedeniyle illegal karaya çıkarılanlar sadece %1,5’tur. Halbuki, ilk üreme boyu baz alındığında, sürdürülebilir palamut balıkçılığı için minimum karaya çıkarma boyu en az 40 cm olarak uygulanmalıdır

References

  • Golani D, Öztürk B, Başusta N. (2006). The fishes of the eastern Mediterranean. Turkish Marine Research Foundation, Publication No. 24, Istanbul, Turkey
  • Froese, R., Pauly, D., (2017). FishBase. World Wide Web electronic publication. www.fishbase.org. Version (02/2017) adresinden alınmıştır.
  • TUIK (2017). Fishery Statistics 2016. Available at www.tuik.gov.tr adresinden alınmıştır. Kasapoğlu, N., Düzgüneş, E., (2014). Lengthweight relationships of marine species caught by five gears from the Black Sea. Mediterranean Marine Science 15(1): 95-100.
  • Kahraman, A.E., Göktürk, D., Yıldız, T., Uzer, U., (2014). Age, growth and reproductive biology of the Atlantic bonito (Sarda sarda Bloch, 1793) from the Turkish coast of the Black Sea and the Sea of Marmara. Turkish Journal of Zoology 38: 614-621.
  • Oray, I.K., Özberk, G., Karakulak, F.S., (1997). Investigations on the purse seine fishing of bonitos, Sarda sarda (Bloch, 1793), in Turkish waters in 1995. Col.Vol.Sci.Pap. ICCAT 46: 283-287.
  • Oray, I.K., Karakulak, F.S., Zengin, M., (2004). Report on the Turkish bonito (Sarda sarda) fishery in 2000/2001. Col.Vol.Sci.Pap. ICCAT 56: 784-788
  • Ateş, C., Deval, M.C., Bök, T. (2008). Age and growth of Atlantic bonito (Sarda sarda Bloch, 1793) in the Sea of Marmara and Black Sea, Turkey. Journal of Applied Ichthyology 24: 546-550.
  • Yankova, M., Pavlov, D., Raykov, V., Mihneva, V., Radu, G., (2011). Length-weight relationships of ten fish speciesfrom the Bulgarian Black Sea waters. Turkish Journal of Zoology 35(2): 265-270

Length-weight Relationship, Fulton’s Condition Factor and Meat Yield of Atlantic Bonito, Sarda sarda (Bloch, 1793) in the Central Black Sea

Year 2017, Volume: 3 Issue: 1, 42 - 48, 01.11.2017

Abstract

A total of 271 Atlantic bonitos from the Black Sea were collected from commercial gillnet and purse-seine fisheries, which have especially landed at Sinop fishing ports between September 2016 and December 2016. Length and weight of Atlantic bonito specimens were ranged from 15.4 cm to 47.6 cm (average: 34.6 ± 0.38 cm), and 72 g to 1288.8 g (average: 506.7 ±19 g). The LWR equation calculated was W = 0.0028 × TL3.3763 (R2= 0.9744). Meat yield ratio was ranged from 42.2% to 79.7% (average: 69%). Fulton’s condition factors were ranged from 0.816 to 1.972 (average: 1.066 ±0.008). The results seem that the populations of Atlantic bonitos in the Black Sea and the Sea of Marmara have quite large size and good conditions in terms of Lmax, Wmax and a and b values. Additionally, K value increased in bigger fish than >36 cm in this study. However, MLS with 25 cm is also unreasonable due to the reported of 42.5 cm for females and 37 cm for males in a previous study. In this study, only 1.5% under legal size is due to MLS with 25 cm. Whereas, MLS should be increased owing to first maturity length, and should be implemented new MLS with at least 40 cm for sustainable bonito fishery.

References

  • Golani D, Öztürk B, Başusta N. (2006). The fishes of the eastern Mediterranean. Turkish Marine Research Foundation, Publication No. 24, Istanbul, Turkey
  • Froese, R., Pauly, D., (2017). FishBase. World Wide Web electronic publication. www.fishbase.org. Version (02/2017) adresinden alınmıştır.
  • TUIK (2017). Fishery Statistics 2016. Available at www.tuik.gov.tr adresinden alınmıştır. Kasapoğlu, N., Düzgüneş, E., (2014). Lengthweight relationships of marine species caught by five gears from the Black Sea. Mediterranean Marine Science 15(1): 95-100.
  • Kahraman, A.E., Göktürk, D., Yıldız, T., Uzer, U., (2014). Age, growth and reproductive biology of the Atlantic bonito (Sarda sarda Bloch, 1793) from the Turkish coast of the Black Sea and the Sea of Marmara. Turkish Journal of Zoology 38: 614-621.
  • Oray, I.K., Özberk, G., Karakulak, F.S., (1997). Investigations on the purse seine fishing of bonitos, Sarda sarda (Bloch, 1793), in Turkish waters in 1995. Col.Vol.Sci.Pap. ICCAT 46: 283-287.
  • Oray, I.K., Karakulak, F.S., Zengin, M., (2004). Report on the Turkish bonito (Sarda sarda) fishery in 2000/2001. Col.Vol.Sci.Pap. ICCAT 56: 784-788
  • Ateş, C., Deval, M.C., Bök, T. (2008). Age and growth of Atlantic bonito (Sarda sarda Bloch, 1793) in the Sea of Marmara and Black Sea, Turkey. Journal of Applied Ichthyology 24: 546-550.
  • Yankova, M., Pavlov, D., Raykov, V., Mihneva, V., Radu, G., (2011). Length-weight relationships of ten fish speciesfrom the Bulgarian Black Sea waters. Turkish Journal of Zoology 35(2): 265-270
There are 8 citations in total.

Details

Primary Language English
Other ID JA67ES64JV
Journal Section Research Article
Authors

Osman Samsun This is me

Okan Akyol This is me

Publication Date November 1, 2017
Submission Date November 1, 2017
Published in Issue Year 2017 Volume: 3 Issue: 1

Cite

APA Samsun, O., & Akyol, O. (2017). Length-weight Relationship, Fulton’s Condition Factor and Meat Yield of Atlantic Bonito, Sarda sarda (Bloch, 1793) in the Central Black Sea. Turkish Journal of Maritime and Marine Sciences, 3(1), 42-48.

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