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

Paulsen, Matthias, Clemmesen, Catriona and Malzahn, Arne (2014) Essential fatty acid (docosahexaeonic, DHA) availability affects growth of larval herring in the field. Marine Biology, 161 (1). pp. 239-244. DOI 10.1007/s00227-013-2313-6.

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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.

Document Type: Article
Additional Information: WOS:000329792700021
Keywords: Standard Length, Essential Fatty Acid, Larval Fish, Larval Growth, Prey Abundance
Research affiliation: OceanRep > GEOMAR > FB3 Marine Ecology > FB3-EV Marine Evolutionary Ecology
Refereed: Yes
Open Access Journal?: No
DOI etc.: 10.1007/s00227-013-2313-6
ISSN: 0025-3162
Projects: Fehmarn Belt Science Provision Project, AQUASHIFT, RECONN, Future Ocean
Date Deposited: 27 Nov 2012 12:06
Last Modified: 09 Jul 2019 12:17

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