Journal
ICES JOURNAL OF MARINE SCIENCE
Volume 69, Issue 2, Pages 267-270Publisher
OXFORD UNIV PRESS
DOI: 10.1093/icesjms/fss008
Keywords
adopted migrant hypothesis; biological reference points; entrainment hypothesis; episodic fisheries; feeding migration; precautionary approach to management; spawning migrations; spawning potential ratio; socially transmitted behaviour
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Risk of stock collapse associated with the loss of a stock's migrational knowledge may be underestimated by conventional reference points. In this paper, I describe three different approaches: a data-poor precautionary approach is to ensure that individuals spawn at least twice; a data-intermediate approach is to calculate a repeat spawning potential ratio (rSPR), which is analogous to the conventional SPR; and for data-rich cases, age-structured population simulations are recommended.
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