Persistence of fishing stocks depends also on the supply of eggs and larvae. Here the natal origin of European anchovy in the eastern Ligurian Sea was investigated by using LA-ICPMS analyses on otolith cores. The indication of single or multiple natal origins was found to change year by year (i.e. for each annual cohort). These first results could involve a different risk of fluctuation or collapse (higher in the case of a single natal origin) of European anchovy stocks year by year.
NATAL ORIGIN OF EUROPEAN ANCHOVY: A CASE STUDY IN THE LIGURIAN SEA (NW MEDITERRANEAN)
PETRILLO, MARIO;ALBERTELLI, GIANCARLO
2010-01-01
Abstract
Persistence of fishing stocks depends also on the supply of eggs and larvae. Here the natal origin of European anchovy in the eastern Ligurian Sea was investigated by using LA-ICPMS analyses on otolith cores. The indication of single or multiple natal origins was found to change year by year (i.e. for each annual cohort). These first results could involve a different risk of fluctuation or collapse (higher in the case of a single natal origin) of European anchovy stocks year by year.
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