Larval development of a semi terrestrial mangrove sesarmine crab Chasmagnathus convexus (Crustacea: Decapoda: Brachyura: Grapsidae) reared in laboratory
Four zoeal stages and one megalopal stage were identified in laboratory rearedsemiterrestrial mangrove sesarmine crab Chasmagnathus convexus. At an average salinityand temperature of 20±1% and 19.2±0.2°C, the megalopa was attained 24 days afterhatching. Morphologically, the first zoae of C. convexz1s is very similar to those of otherspecies of the genus Chasmagnathus as well as species of the genus Helice, in that view allshare the following characteristics: lateral spine on the carapace, three pairs of setae onthe posterior margin of the telson furca, one plus five setae on the endopod of themaxillule, and two plus two setae on the endopod of the maxilla. The differencesbetween the first zoea and megalopa of and those of its congeners are discussed.
| Main Authors: | , , |
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| Format: | article biblioteca |
| Language: | English |
| Published: |
2001
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| Subjects: | Aquaculture, Fisheries, Mangrove crab, Chasmagnathus convexus, Larval development, |
| Online Access: | http://hdl.handle.net/1834/33278 |
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