Josileen, Jose (2018) Marine Crab Resources of India with Facts on Life Cycle and Biology In: ICAR Sponsored Winter School on Recent Advances in Fishery Biology Techniques for Biodiversity Evaluation and Conservation, 1-21 December 2018, Kochi. [Teaching Resource]
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21-Winter School on Recent Advances in Fishery Biology Techniques for Biodiversity Evaluation and Conservation_2018_Josileen Jose.pdf Download (3MB) | Preview |
Abstract
Crabs belong to the order Decapoda and they can be can be classified into two main groups, brachyuran crabs (infraorder Brachyura) and anomuran crabs (infraorder Anomura). Most species of Brachyura, or true crabs, can easily be separated from the so-called “false crabs” belonging to the infraorder Anomura by having five pairs of locomotory appendages of a crab (the pereiopods) are made up of a pair of usually powerful chelipeds (legs carrying a chela or pincer) and normally of four pairs of walking (or ambulatory) legs. The first appendage is referred to as the cheliped and the last four appendages (walking legs) as legs. The claw (or chela) itself consists of a palm (or manus) and two fingers, one of which is movable (the dactylus or movable finger), whereas the other one (Propodus/pollex) is fixed. The tips or edges of the fingers may be pectinated. In some families the last pair or all walking legs are modified for swimming or burrowing, as seen in the Portunidae (Carpenter and Niem, 1998).
| Item Type: | Teaching Resource |
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| Subjects: | Crustacean Fisheries > Crabs |
| Divisions: | CMFRI-Kochi > Marine Capture > Crustacean Fisheries Division Subject Area > CMFRI > CMFRI-Kochi > Marine Capture > Crustacean Fisheries Division CMFRI-Kochi > Marine Capture > Crustacean Fisheries Division Subject Area > CMFRI-Kochi > Marine Capture > Crustacean Fisheries Division |
| Depositing User: | Arun Surendran |
| Date Deposited: | 05 Jan 2019 05:17 |
| Last Modified: | 15 Feb 2019 04:58 |
| URI: | http://eprints.cmfri.org.in/id/eprint/13323 |
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