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The effects of stock size and environmental variability on Cape hake recruitment in Namibia: an unsolved puzzle (a comment on Kainge et al. 2013)

AFRICAN JOURNAL OF MARINE SCIENCE (2015)

期刊

AFRICAN JOURNAL OF MARINE SCIENCE

卷 37, 期 3, 页码 431-433

出版社

NATL INQUIRY SERVICES CENTRE PTY LTD

DOI: 10.2989/1814232X.2015.1075900

关键词

environment; fish growth; fisheries surveys; spawning; stock dynamics

类别

Marine & Freshwater Biology

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Reagent

摘要

Measuring and forecasting recruitment are central to the understanding and management of fish stocks. Kainge et al. (2013) studied the effect of spawning stock size and environmental fluctuations on the recruitment levels of the Cape hake Merluccius capensis in Namibia. However, their study contains some flaws that undermine the conclusion that Cape hake recruitment is under the influence of upwelling in summer. Until those flaws are properly addressed, this conclusion, in our view, should be treated with caution.

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