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Freshwater Crayfish 5(1): 229-238 (1983)

PEER REVIEWED    RESEARCH ARTICLE

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Population of the crayfish Austropotamobius pallipes pallipes Lereb. in a brook of Corsica France

Arrignon JCV and Roché B  e-mail link

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Abstract

The population of crayfishes (Austropotamobius pallipes pallipes lereb.) was estimated using two statistical methods. Both results give populations of 7,000 females and 8,000 males per hectare. Males are always more numerous than females, except in the size classes under 70/75 mm. The weight/size ratio is more pronounced for males than for females. The health of the population appears very good and there is no visible sign of plague, Thelohaniosis, or rust-disease. The number of animals reaching or exceeding the legal size of catching (90 mm) is also good (6.35%), and growth is apparently fast. The population is well balanced, with a large stock of juveniles.

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Arrignon JCV and Roché B. (1983). Population of the crayfish Austropotamobius pallipes pallipes Lereb in a brook of Corsica France. Freshwater Crayfish 5(1):229-238. doi: 10.5869/fc.1983.v5.229

 

 

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