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Published on: July 12, 2021
Evolutionary changes in cognition due to fisheries mortality?
Tamal Roy1, Alexander Kotrschal2, Robert Arlinghaus1
1Division of Integrative Fisheries Management, Albrecht-Daniel-Thaer Institute of Agricultural and Horticultural Sciences, Faculty of Life Sciences, Humboldt-Universität zu Berlin, Philippstrasse 13, Haus 7, 10115 Berlin, Germany; Department of Fish Biology, Fisheries and Aquaculture, Leibniz Institute of Freshwater Ecology and Inland Fisheries, Müggelseedamm 310, 12587 Berlin, Germany; Science of Intelligence, Research Cluster of Excellence, Marchstrasse 23, 10587 Berlin, Germany.
Abstract:
Fish experiencing harvest mortality often evolve a fast life-history that prioritizes investment in current versus future reproduction, thereby potentially limiting energetic investment in the brain. Fisheries may also select for shy fish that are less willing to learn, or directly select fish with poor cognitive ability. The resulting evolutionary changes can alter the cognitive performance of individuals and affect fish populations and fisheries quality.
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