The redclaw crayfish, Cherax quadricarinatus , was introduced to Martinique Island for aquaculture purposes at the beginning of 21st century, in an attempt revitalize freshwater crustacean sector. Mainly due its high economical value, it intentionally released wild and caught sold by fishermen. Martinican rivers are polluted chlordecone, considered as one worst Persistant Organic Pollutants (PO...

Some crustaceans possess exoskeletons that are reinforced with calcium carbonate. In the crayfish Cherax quadricarinatus, the molar tooth, which is part of the mandibular exoskeleton, contains an unusual crystalline enamel-like apatite layer. As this layer resembles vertebrate enamel in composition and function, it offers an interesting example of convergent evolution. Unlike other parts of the...

Abstract Cherax quadricarinatus is an introduced species that deliberately stocked in Lake Laut Tawar, Takengon, Indonesia. This study aims to analyze bio-population aspect of this species, including length frequency distribution, length-weight relationship, condition factors, and biology reproductive. A total 361 individual was sampled bi-weekly from October December 2021 Central Aceh, The car...