Year 2018, Volume 35 , Issue 1, Pages 19 - 26 2018-03-15

General characteristics of bottom trawl fishery and effect of haul duration and total catch on discard in the Western Black Sea
Batı Karadeniz dip trol balıkçılığının genel özellikleri ve çekim süresi ile toplam avın ıskarta üzerine etkisi

Taner Yıldız [1] , F. Saadet Karakulak [2]


In this study, general characteristics of bottom trawl fishery and relationships of inter parameter such as haul duration, total and discard catch were defined by regression and correlation analysis. Data of study was obtained by 66 valid bottom trawl hauls in İğneada and Rumeli Feneri regions between the years 2012-2014. Accordingly, days at sea of bottom trawlers varied between 99 and 167 days for between years of 2010 and 2014. The total amount of catch increases as haul duration increases. In the meantime, however, discard amount increases as well. To be able to provide the sustainable exploitation of Black Sea demersal resources, controls of fishery inputs (days at sea and haul duration etc.) should be planned by fishery authorities instead of regulations based on only landings.

Bu çalışmada, Batı Karadeniz dip trol balıkçılığının genel karakteri ile çekim süresi, hedef, ıskarta ve toplam av miktarı gibi bazı parametreler arası ilişkiler regresyon ve korelasyon analizi ile incelenmiştir. Çalışma verileri İğneada ve Rumeli Feneri bölgelerinde 2012-2014 yılları arasında 66 geçerli dip trol çekiminden elde edilmiştir. Sonuç olarak 2010-2014 yılları arasında dip trol balıkçılarının denize çıktıkları gün sayısı 99 ile 167 arasında değiştiği tespit edilmiştir. Çekim süresi arttıkça toplam av artarken ıskarta av miktarı da artmaktadır. Karadeniz demersal kaynaklarının sürdürülebilir kullanımının sağlanması için yalnızca karaya çıkan av üzerinden düzenlemeler yapmak yerine balıkçılık girdi kontrollerinin de (denize çıkılan gün sayısı ve çekim süresi gibi) balıkçılık yöneticileri tarafından planlanması gerekmektedir.

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Primary Language tr
Subjects Science
Journal Section Articles
Authors

Orcid: 0000-0003-3140-5118
Author: Taner Yıldız (Primary Author)
Country: Turkey


Orcid: 0000-0002-6053-5256
Author: F. Saadet Karakulak
Country: Turkey


Dates

Publication Date : March 15, 2018

APA Yıldız, T , Karakulak, F . (2018). Batı Karadeniz dip trol balıkçılığının genel özellikleri ve çekim süresi ile toplam avın ıskarta üzerine etkisi. Ege Journal of Fisheries and Aquatic Sciences , 35 (1) , 19-26 . DOI: 10.12714/egejfas.2018.35.1.04