The "school trap": a mechanism promoting large-amplitude out-of-phase population oscillations of small pelagic fish species |
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| Authors: | Bakun & Cury |
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| Institution: | Lab. Halieutique et Ecosystèmes Aquatiques, IRD, B.P. 5045, 34020 Montpellier cedex 1, France.,;IRD Research Associate. Marine and Coastal Management. Private Bag X2, Rogge Bay 8012 Cape Town, South Africa. |
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| Abstract: | Small coastal pelagic marine fishes often form mixed schools containing two or more species. Individuals of a less abundant species, which are entrained in schools that are dominated numerically by a more abundant species, may be adversely impacted. This may help to account for an observed pattern of strong alternations in dominance between sardines and anchovies in a number of regions of the world's oceans. |
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| Keywords: | Anchovy regime change sardine school trap small pelagics |
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