| Issue |
La Houille Blanche
Number 1-2, Janvier 1987
|
|
|---|---|---|
| Page(s) | 89 - 98 | |
| DOI | https://doi.org/10.1051/lhb/1987009 | |
| Published online | 01 November 2009 | |
Comportement migratoire du saumon Loire-Allier : le problème des obstacles
Migratory behaviour of Loire-Allier salmon: the problems relating to obstacles
Conseil supérieur de la pêche Délégation régionale Auvergne-Limousin
Sur l'axe Loire-Allier, grande distance et multiplicité des obstacles entre mer et frayères ont " façonné " une souche de saumons atlantiques très particulière : entrée en estuaire précoce, forte proportion de sujets de grande taille, diversité des comportements aboutissant à " partager les risques". Le problème des obstacles et de leur influence est plus particulièrement discuté.
Abstract
At the Loire-Allier axis the vast distance and multiplicity of problems between the sea and spawning places have resulted into a very special stock of Atlantic salmon being generated : access into precocious estuary, a considerable number of large fish, diversity of behaviour resulting in " sharing of risks ". The discussions are more particularly centred around the problems relating to obstacles and their impact.
© Société Hydrotechnique de France, 1987
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