Moulting and reproduction of the spiny lobster Jasus edwardsii (Decapoda: Palinuridae) in northern New Zealand
Marine Biology, ISSN: 0025-3162, Vol: 103, Issue: 3, Page: 303-310
1989
- 95Citations
- 34Captures
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Article Description
Aspects of moulting and reproduction of a primarily adult population of the spiny lobster Jasus edwardsii (Hutton) (Palinuridae) were investigated in the field and at an adjacent laboratory in northeast New Zealand from 1982 to 1986. Most males moulted in October/November, ensuring they were in intermoult stage at mating. Females moulted in late April-June, 2 to 3 mo later than females from more southern latitudes. For individual females the specific timing of ecdysis and mating and the length of the interval between them were related to size. Larger females (125 to 135 mm carapace length), tended to moult earlier and wait longer (up to 38 d) before mating, but did so prior to smaller females (95 to 105 mm carapace length, CL) which moulted later, but mated within as few as 9 d. These differences are explained equally well by size-dependent growth processes and by social or chemical inhibition by larger females. Most spiny lobsters (93 to 131 mm CL) moulted at night at depths <10 m. No clear reasons for these behaviours could be found. Eggs were incubated for 101 to 116 d by females in the study population, 70% of the time recorded for more southern areas, these differences probably being related to differences in water temperature. A consequence of earlier female moulting and egg-laying, and longer egg-incubation periods with increasing latitude is that the majority of J. edwardsii larvae hatch in September-November. © 1989 Springer-Verlag.
Bibliographic Details
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=0001100260&origin=inward; http://dx.doi.org/10.1007/bf00397263; http://link.springer.com/10.1007/BF00397263; http://link.springer.com/content/pdf/10.1007/BF00397263; http://link.springer.com/content/pdf/10.1007/BF00397263.pdf; http://link.springer.com/article/10.1007/BF00397263/fulltext.html; http://www.springerlink.com/index/pdf/10.1007/BF00397263; https://dx.doi.org/10.1007/bf00397263; https://link.springer.com/article/10.1007/BF00397263; http://www.springerlink.com/index/10.1007/BF00397263
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