Effects of density dependence, zooplankton and temperature on blue whiting Micromesistius poutassou growth

Trenkel, V.M.; Lorance, P.; Fässler, S.M.M.; Høines, Å S.

Journal of Fish Biology 87(4): 1019-1030

2015


ISSN/ISBN: 1095-8649
PMID: 26376856
DOI: 10.1111/jfb.12775
Accession: 057726665

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Abstract
Blue whiting Micromesistius poutassou mean total length at age in the north-east Atlantic Ocean was found to vary by around ±6% during the period 2004-2011 and mean mass at age by ±22% during the years 1981-2013. Linear modelling provided strong evidence that these phenotypic growth variations can be explained by trophic conditions, mainly negative density dependence and also food availability, and a negative long-term temperature effect on asymptotic size.