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A description of larval and early juvenile development in Paralomis spinosissima (Decapoda: Anomura: Paguroidea: Lithodidae) from South Georgia waters (Southern Ocean)

Watts, Jamie; Thatje, Sven; Clarke, Sarah; Belchier, Mark. 2006 A description of larval and early juvenile development in Paralomis spinosissima (Decapoda: Anomura: Paguroidea: Lithodidae) from South Georgia waters (Southern Ocean). Polar Biology, 29 (12). 1028-1038. 10.1007/s00300-006-0146-1

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Abstract/Summary

The early ontogenetic stages of Paralomis spinosissima Birstein and Vinogradow, 1972, are described in detail and illustrated, with notes on morphological variability observed. Larval and early juvenile development was described to the crab I instar reared under controlled conditions of temperature and food supply. The abbreviated larval development invariably passed through two zoeal stages and the benthic megalopa stage. The larval development was completed without food supply, and food Artemia nauplii were first given after moult to the crab-I stage. Simplification and retarded development of the mouthparts are discussed as a function of lecithotrophy of these larvae and based on morphology no facultative feeding mode is suggested. Lecithotrophy in the Southern Ocean Lithodidae is discussed to be an adaptation allowing independence from seasonal food availability at high latitudes.

Item Type: Publication - Article
Digital Object Identifier (DOI): 10.1007/s00300-006-0146-1
Programmes: BAS Programmes > Other Special Projects
ISSN: 0722-4060
Additional Information. Not used in RCUK Gateway to Research.: Full text not available from this repository
Additional Keywords: Crabs
NORA Subject Terms: Zoology
Date made live: 05 Oct 2007 12:48
URI: http://nora.nerc.ac.uk/id/eprint/1049

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