Larval Development of the Swimming Crab Thalamita pelsarti Montgomery, 1931 (Crustacea: Brachyura: Portunidae) Reared in the Laboratory

Larval Development of the Swimming Crab Thalamita pelsarti Montgomery, 1931 (Crustacea:... The larval development of the swimming crab Thalamita pelsarti Montgomery was studied from the first zoea to megalopa under laboratory conditions. Five zoeal stages and one megalopa are identified, and detailed descriptions and illustrations are provided for each stage. At an average salinity and temperature of 34 ± 1‰ and 24 ± 1°C, the megalopa was attained 17 days after hatching. Morphologically, the first zoea of T. pelsarti is similar to those of other species of Thalamita in having a lateral spines on the carapace, one plus six setae on the endopod of the maxillule, two plus four setae on the endopod of the maxilla, and three pairs of serrate setae on the posterior margin of the telson furca. The differences between the first zoea and megalopa of T. pelsarti and those of its congeners are discussed briefly. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Marine Biology Springer Journals

Larval Development of the Swimming Crab Thalamita pelsarti Montgomery, 1931 (Crustacea: Brachyura: Portunidae) Reared in the Laboratory

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Publisher
Nauka/Interperiodica
Copyright
Copyright © 2005 by MAIK “Nauka/Interperiodica”
Subject
Life Sciences; Freshwater & Marine Ecology
ISSN
1063-0740
eISSN
1608-3377
D.O.I.
10.1007/s11179-005-0048-z
Publisher site
See Article on Publisher Site

Abstract

The larval development of the swimming crab Thalamita pelsarti Montgomery was studied from the first zoea to megalopa under laboratory conditions. Five zoeal stages and one megalopa are identified, and detailed descriptions and illustrations are provided for each stage. At an average salinity and temperature of 34 ± 1‰ and 24 ± 1°C, the megalopa was attained 17 days after hatching. Morphologically, the first zoea of T. pelsarti is similar to those of other species of Thalamita in having a lateral spines on the carapace, one plus six setae on the endopod of the maxillule, two plus four setae on the endopod of the maxilla, and three pairs of serrate setae on the posterior margin of the telson furca. The differences between the first zoea and megalopa of T. pelsarti and those of its congeners are discussed briefly.

Journal

Russian Journal of Marine BiologySpringer Journals

Published: May 16, 2005

References

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