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Error Line: 0 FRESHWATER CRAYFISH: Growth and Development of Juveniles of the Native and Introduced Species of Freshwater Crayfish
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Freshwater Crayfish 7(1): 396-400 (1988)

PEER REVIEWED    RESEARCH ARTICLE

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Growth and Development of Juveniles of the Native and Introduced Species of Freshwater Crayfish

Tamkevi?iene EA  e-mail link

Published Online: 6/1/2020

Abstract

Experiments, carried out on the signal crayfish (Pacifastacus leniusculus Dana) juveniles under half-natural conditions, showed that the growth rate of the observed juveniles was very high during the first summer. During 4 months they moulted 8-9 times and averaged 29-34 mm.body length and 560-740 mg body mass. One-summer juveniles of P. leniusculus were 2.5-3 times larger than the juveniles of the same age of the native species Astacus astacus L. and 1.5-2 times larger than those of Astacus leptodactylus Esch. The output of one-summer juveniles of the three species came to 30-60%. The obtained one-summer juveniles can be introduced in isolated lakes of Lithuania.

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Tamkevi?iene EA. (1988). Growth and Development of Juveniles of the Native and Introduced Species of Freshwater Crayfish. Freshwater Crayfish 7(1):396-400. doi: 10.5869/fc.1988.v7.396

 

 

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   Published Online: 6/1/2020

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