The Noble Crayfish (Astacus astacus) is a widespread species, it has undergone significant declines in population numbers due to non-indigenous species, crayfish plague, habitat loss and over-harvesting. Estimates of rate of decline in Sweden, Finland and Norway are as high as 78%, ~20% and 61% respectively over a 3 generation length period. Similar rates of decline are being seen within a number of other countries. Globally, this species is estimated to be declining at a rate of 50-70%, however in some parts of its range numbers are stable and there have been some successful re-stocking programs so the true rate of decline may in fact be slightly lower (40 - 50%) thereby qualifying this species for a listing under Vulnerable under criterion A2ad.

Astacus astacus / L. EDSMAN; L. FÜREDER; F. GHERARDI; C. SOUTY-GROSSET. - ELETTRONICO. - (2010), pp. 0-0.

Astacus astacus.

GHERARDI, FRANCESCA;
2010

Abstract

The Noble Crayfish (Astacus astacus) is a widespread species, it has undergone significant declines in population numbers due to non-indigenous species, crayfish plague, habitat loss and over-harvesting. Estimates of rate of decline in Sweden, Finland and Norway are as high as 78%, ~20% and 61% respectively over a 3 generation length period. Similar rates of decline are being seen within a number of other countries. Globally, this species is estimated to be declining at a rate of 50-70%, however in some parts of its range numbers are stable and there have been some successful re-stocking programs so the true rate of decline may in fact be slightly lower (40 - 50%) thereby qualifying this species for a listing under Vulnerable under criterion A2ad.
2010
IUCN Red List of Threatened Species. Version 2010.4.
0
0
L. EDSMAN; L. FÜREDER; F. GHERARDI; C. SOUTY-GROSSET
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Utilizza questo identificatore per citare o creare un link a questa risorsa: https://hdl.handle.net/2158/470460
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