An assessment of genus Euastacus (49 species) versus IUCN Red List criteria

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Coughran, Jason
Furse, James
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2010
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Abstract

Euastacus is the largest of the 10 Australian crayfish genera with 49 species described, comprising 37% of all Australian freshwater crayfish species. Euastacus includes some of the largest, and some of the rarest, species in the World, and the genus is often referred to broadly as the “Spiny Crayfish” genus of Australia, due to some species featuring impressive arrays of spines on the thorax, abdomen and chelae. In addition, many species are very colourful, and this includes various shades of blue, green, red, yellow, purple and orange. This project was a consolidation of known information and our own research and direct experience with this genus, and an appraisal of the susceptibility of these species to various threats. Between us, we have been working on the taxonomy, biology and ecology of Euastacus for over 20 years, and continue to study these animals through numerous current projects. For some species, we have drawn on our own research and direct experiences, but we have first and foremost endeavoured to review and synthesise all available information. We hope that this consolidation of information into a readily accessible publication forms a sound platform from which to expand research and management initiatives into this important, iconic and highly endangered genus. Our assessments have been limited to accessible publications, reports and theses, and there may be additional unpublished information for some of these species. We also acknowledge that there may be enthusiasts, naturalists, government officers and researchers with additional local knowledge about some of these crayfish. To that end, we hope that this report stimulates further work and uncovers any additional specific information on these species.

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© 2010 International Association of Astacology

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Conservation and biodiversity

Other biological sciences not elsewhere classified

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