Essential fatty acid (docosahexaenoic acid, DHA) availability affects growth of larval herring in the field

Matthias Paulsen, Catriona Clemmesen, Arne M. Malzahn

Research output: Contribution to journalArticle

24 Citations (Scopus)

Abstract

Larval fish growth and survival depends not only on prey quantity, but also on prey quality. To investigate effects of prey fatty acid concentration on larval herring growth, we collected different prey organisms and larval herring (Clupea harengus L.) in the Kiel Canal during the spring season of 2009. Along with biotic background data, we analysed fatty acids both in prey organisms and in the larvae and used biochemically derived growth rates of the larvae as the response variable. Larval herring reached their highest RNA/DNA derived growth rates only at high docosahexaenoic acid (DHA) concentration. When the ratio of copepodids to lesser quality cirriped nauplii was low, larval growth and larval DHA concentration were both significantly negatively affected. This was true even as prey abundance was increasing. This finding indicates that even in mixed, natural feeding conditions, growth variations are associated with DHA availability in larval fish.

Original languageEnglish
Pages (from-to)239-244
Number of pages6
JournalMarine Biology
Volume161
Issue number1
DOIs
Publication statusPublished - Jan 2014

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ASJC Scopus subject areas

  • Aquatic Science
  • Ecology, Evolution, Behavior and Systematics
  • Ecology

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