Effects on trawl selectivity of growth and reproduction in Diplodus annularis L. of Izmir Bay (Aegean Sea)


KINACIGIL H. T. , Akyol O.

ARCHIVE OF FISHERY AND MARINE RESEARCH, cilt.49, ss.19-26, 2001 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 49 Konu: 1
  • Basım Tarihi: 2001
  • Dergi Adı: ARCHIVE OF FISHERY AND MARINE RESEARCH
  • Sayfa Sayıları: ss.19-26

Özet

Trawl selectivity in annular sea bream (Diplodus annularis) of Izmir Bay was studied from October 1997 to September 1999, with 26 valid hauls (6 in spring, 5 in simmer, 9 in autumn, 6 in winter). The 50 % retention lengths of the trawl codend having a diamond mesh (44 mm) were 12.7 cm in spring, 13.2 cm in summer, 10.7 cm in autumn, and 10.6 cm in winter. The selectivity of the trawl improved with the increase in the activity of the Fishes due to rising water temperatures in spring and summer, but it was not affected by reproduction in spring.