Daily otolith increments and growth rate of juvenile anchovy, Engraulis encrasicolus (Linnaeus, 1758), in the south-eastern Adriatic Sea

Authors

  • Mirko ĐUROVIĆ
  • Ana PEŠIĆ
  • Slobodan REGNER
  • Aleksandar JOKSIMOVIĆ
  • Milica MANDIĆ
  • Olivera KASALICA
  • Zdravko IKICA
  • Jasmina KRPO-ĆETKOVIĆ

Keywords:

juvenile anchovy, growth, age, otolith, Adriatic Sea

Abstract

         Daily growth rate of juvenile anchovy, Engraulis encrasicolus (Linnaeus, 1758), was estimated in the south-eastern Adriatic Sea. Samples were taken by a commercial beach seine net and the size range of 100 sampled individuals was 5.0-6.8 cm total length. Age was estimated by counting growth increments of sagittal otoliths, which are formed with daily periodicity. Estimated ages were 41- 90 days and hatch date for each age class was back-calculated from the date of capture. The calculated instantaneous growth rate was 0.41 mm day-1. Fish size at metamorphosis from late larva to juvenile was estimated to 3.2 cm total length. Parameters of the von Bertalanffy’s growth function were L = 10.41 and K = 3.36.

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Published

20.12.2012

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Original article