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The size selectivity of whiting (Merlangius merlangus euxinus) caught by gillnet in the eastern Black Sea of Turkey

Published online by Cambridge University Press:  26 June 2014

Ferhat Kalaycı  and
Tuncay Yeşılçıçek
Ferhat Kalaycı*
Affiliation:
Recep Tayyip Erdoğan University, Faculty of Fisheries, 53100 Rize, Turkey
Tuncay Yeşılçıçek
Affiliation:
Recep Tayyip Erdoğan University, Faculty of Fisheries, 53100 Rize, Turkey
*
Correspondence should be addressed to: F. Kalaycı, Recep Tayyip Erdoğan University, Faculty of Fisheries, Rize-53100, Turkey email: ferhatkalayci@yahoo.com
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Abstract

The size selectivity of traditional gillnets for whiting, (Merlangius merlangus euxinus) was investigated in the eastern Black Sea between June 2010 and June 2011. Experimental fishing operations were carried out by using gillnets of 16, 17, 18, 20 and 22 mm mesh size. A total of 2038 specimens belonging to 16 different fish species were caught during the experiment. The Share Each Length's Catch Total method was used to fit gillnet selectivity curves. Gillnet selectivity was best described by a bi-modal selectivity curve. The modal catch sizes were estimated as 14.81, 15.74, 16.66, 18.51 and 20.37 cm for 16, 17, 18, 20 and 22 mm mesh sizes, respectively. Modal lengths and spread values increased with increasing mesh size. The majority of fish (71.8%) caught by 16 mm mesh size were less than the length at first sexual maturity.

Keywords

size selectivitygillnetwhitingBlack SeaShare Each Length's Catch Total method
Type
Research Article
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 94 , Issue 7 , November 2014 , pp. 1539 - 1544
Copyright
Copyright © Marine Biological Association of the United Kingdom 2014 

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