EMPIRICAL LABORATORY STUDIES ON THE GROWTH OF FIVE COHORTS OF LARVAL AND EARLY JUVENILE SPOTTED SEA TROUT, Cynoscion nebulosus


HEKİMOĞLU M. A. , Orhun M. R.

FRESENIUS ENVIRONMENTAL BULLETIN, vol.20, no.3, pp.569-576, 2011 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 20 Issue: 3
  • Publication Date: 2011
  • Title of Journal : FRESENIUS ENVIRONMENTAL BULLETIN
  • Page Numbers: pp.569-576

Abstract

Analysis of empirical laboratory data of larval growth rate variation of five cohorts of larval and early juvenile spotted sea trout from hatching to 30-37 day emphasizes the differentiation during early-life history stages. Batch growth-rate variability increased steadily with developmental stage from hatching process by flection in terms of standard length and dry weight variations. Results revealed age- and developmental stage. Specific growth rates show a curvilinear relationship with an intermediate maximum end of the flection stage extending into the post-flection stage. Growth rates of older flection and post-flection larvae are more determinative about overall average of larval batch growth rates but less determinative about younger pre-flection or early flection larval growth rates.