Determination of moult stage in the South African west coast rock lobster Jasus lalandii (H. Milne Edwards) (Crustacea: Decapoda)
Isaacs, G.; Cockcroft, A.C.; Gibbons, M.J.; De Villiers, C.J. (2000). Determination of moult stage in the South African west coast rock lobster Jasus lalandii (H. Milne Edwards) (Crustacea: Decapoda). S. Afr. J. Mar. Sci./S.-Afr. Tydskr. Seewet. 22: 177-183
In: South African Journal of Marine Science = Suid-Afrikaanse Tydskrif vir Seewetenskap. Marine & Coastal Management: Cape Town. ISSN 0257-7615, more
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| Keywords |
Crayfish
Invertebrates > Arthropods > Crustacea > Malacostraca > Decapoda > Shellfish > Crayfish
Morphology
Morphology
Morphology
Marine/Coastal |
| Authors | | Top |
- Isaacs, G.
- Cockcroft, A.C.
- Gibbons, M.J.
- De Villiers, C.J.
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| Abstract |
Nine stages and substages of post-, inter- and premoult were distinguished in the West Coast rock lobster Jasus lalandii by microscopic examination of the cuticle, epidermal retraction and setal development in the pleopods. The postmoult condition is characterized by progressive thickening of the setal walls and cuticle through to intermoult. Premoult commences with apolysis (Stage D-0), followed by setal development (Stage D-1', D-1", D-1' ' ') and culminates with cuticle deposition (Stage D-2). The diagnostic features of the stages are generally similar to those of other decapod crustaceans. |
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