Growth, mortality and hatch-date distributions of striped sea bream Lithognathus mormyrus inhabiting the Canakkale Strait, Turkey


AYYILDIZ H. , Ozen O. , ALTIN A.

JOURNAL OF THE MARINE BIOLOGICAL ASSOCIATION OF THE UNITED KINGDOM, vol.94, no.3, pp.607-613, 2014 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 94 Issue: 3
  • Publication Date: 2014
  • Doi Number: 10.1017/s0025315413001847
  • Title of Journal : JOURNAL OF THE MARINE BIOLOGICAL ASSOCIATION OF THE UNITED KINGDOM
  • Page Numbers: pp.607-613
  • Keywords: Lithognathus mormyrus, mortality, striped sea breem, hatch date, daily growth, DAILY INCREMENT FORMATION, OTOLITH MICROSTRUCTURE, AGE-DETERMINATION, FISH OTOLITHS, EARLY-LIFE, VALIDATION, SPARIDAE, SEABREAM, REPRODUCTION, LARVAL

Abstract

This paper studies age, growth and hatch date distributions of young of the year striped sea bream Lithognathus mormyrus from Canakkale near shores by using a beach seine during September 2006-December 2007. Using otolith microstructure analysis, a total of 416 specimens ranging from 20 to 103mm L-T were aged and found to be between 30 and 307 days old. Average growth rates were estimated to 0.325mmd(-1). The juvenile instantaneous mortality coefficient was found to be 0.0219, which corresponds to a daily mortality of 2.16%. The hatching period of the striped sea bream was determined to occur between April and January, with relatively higher hatching frequency in August.