Push net fishing seems to be responsible for injuries and postfishing mortality in glass eel in the Vilaine estuary (France) in 2007

Knowledge and Management of Aquatic Ecosystems

卷:0

Fatin D.¹  Briand C.¹  Sauvaget B.¹  Beaulaton L.²  Girard P.³ 

[1] Institution d’Aménagement de la Vilaine;

[2] Office National de l’Eau et des Milieux Aquatiques;

[3] Vétérinaire Consultant en Aquaculture et Environnement Aquatique 04 42 5311 48;

关键词: Anguilla anguilla;    glass eel;    push net;    mortality;    marking;   

DOI  :  10.1051/kmae/2011080

来源: DOAJ

【 摘 要 】

Post fishing mortality of the glass eel was monitored in 2007 in the Vilaine estuary. Themortality of the glass eels varied from 2 to 82% (mean 42%) in the two days following thefishing. The mortality of samples collected by hand nets or from the trapping ladder wasnull. Alterations of the skin mucus were analyzed by the use of Indigo carmine. Themortality was significantly correlated with body injuries, but not to other environmentalfactors. The presence of a large injury on the body systematically led to the death of theglass eels, and among these dead glass eels, only 3.5% had no external injury. Theseresults are discussed, along with the results from other estuaries, with a view totransport glass eels across Europe, with the objective of restoring the eel stock.

【 授权许可】

Unknown