Rapa whelk pot fishery in the Black Sea of Turkey: pot type, soak time, depth and season

SAĞLAM H., DAĞTEKİN M., KUTLU S., BAŞÇINAR S., ŞAHİN A., DÜZGÜNEŞ E.

CAHIERS DE BIOLOGIE MARINE, vol.58, no.1, pp.75-81, 2017 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 58 Issue: 1
  • Publication Date: 2017
  • Doi Number: 10.21411/cbm.a.d5ec220
  • Journal Name: CAHIERS DE BIOLOGIE MARINE
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.75-81
  • Keywords: Rapa whelk, Pot fishery, Pot types, Season, Depth, Soak time, Black Sea, BUCCINUM-UNDATUM, VENOSA VALENCIENNES, WATERS, BIOLOGY, TRAP, AREA
  • Karadeniz Technical University Affiliated: Yes

Abstract

The aim of this study is to identify whether there are differences in catch per unit effort (CPUE) to harvest Rapa whelk using different pots, soak times, depths and seasons. The surveys were conducted monthly off Trabzon city coast in the Southern Black Sea from April 2006 to February 2007. Whelk pot type 1 was the most effective relative to other pot types used in this study. The mean CPUE increased with increasing soak time. The most abundant catch was at a depth of 10 m in the summer. Approximately 98% of the total catch in pots was composed of target species (whelk), and roughly 2% was by-catch. The major by-catches in pots were crabs and goby fish.