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Estimation des captures accidentelles d'Acipenser sturio réalisées en mer

Abstract : The sturgeon (Acipenser sturio) is an amphihaline migratory fish which has been a protected species in France since 1982. Marking operations have been performed annually since 1984 and several accidental captures of sturgeons have been reported by sea fishermen. The total information gathered over a period of fifteen years provides 179 sturgeon captures declared by fishermen. Analysis of voluntary declarations highlights the types of fishing in which accidental sturgeon captures occur. The results have enabled us to make a first estimate of the total number of individuals captured and to deduce a fishing mortality rate. Through a better knowledge of the fisheries, it should be possible to improve the estimation of accidental sturgeons captures and to reduce the fishing mortality, and to target information more effectively and thereby improve the protection of the species.
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Submitted on : Thursday, May 14, 2020 - 9:42:25 PM
Last modification on : Tuesday, September 14, 2021 - 9:54:01 AM


  • HAL Id : hal-02582439, version 1
  • IRSTEA : PUB00012877



Mario Lepage, Eric Rochard. Estimation des captures accidentelles d'Acipenser sturio réalisées en mer. Etude Cemagref, groupement de Bordeaux n° 24, 1997, pp.377-381. ⟨hal-02582439⟩



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