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''Astacoides crosnieri'' is a species of crustacean in family Parastacidae. It is endemic to Madagascar, being widespread in in the former Province Fianatantsoa. ''A. crosnieri'' inhabits swampy areas at an elevation between 500 - 1000 m above sea level.〔 The populations are threatened by habitate loss and predation pressure from introduced species. Since ''A. crosnieri'' has a muddy taste and their habitat is difficult to access, ''A. crosnieri'' is less targeted by fisheries compared to other species of the genus ''Astacoides''.〔 ==Conservation== Apart from a general law to prevent harvesting of crayfish under 10 cm total length, there are no laws that protect ''A. crosnieri''. In 1996, ''A. crosnieri'' was assessed as Endangered on the IUCN Red List. This assessment was changed in June 2010 to Data Deficient. However, since the populations are decreasing is must be assumed that sufficient data would only lead to a reassessment as Endangered or worse. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Astacoides crosnieri」の詳細全文を読む スポンサード リンク
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