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Growth and reproduction in the Antarctic brooding bivalve Adacnarca nitens (Philobryidae) from the Ross Sea

Higgs, Nicholas, Reed, Adam, Hooke, Rachel, Honey, David, Heilmayer, Olaf and Thatje, Sven (2009) Growth and reproduction in the Antarctic brooding bivalve Adacnarca nitens (Philobryidae) from the Ross Sea Marine Biology, 156, (5), pp. 1073-1081. (doi:10.1007/s00227-009-1154-9).

Record type: Article

Abstract

We present information on the reproductive biology, population structure, and growth of the brooding Antarctic bivalve Adacnarca nitens Pelseneer 1903, from the Ross Sea, Antarctica. Individuals ranging from 0.85 - 6.00 mm were found attached to a hydrozoan colony. This species shows low fecundity and large egg size, common to other brooding species. The minimum size at which oogenesis was detected was 2.3 mm and the minimum size at which brooding was evident was 3.9 mm. Embryos of a full range of developmental stages were brooded simultaneously in females. The population showed a log-normal distribution and results suggest non-periodic reproduction with continuous embryonic development. The reproductive traits of A. nitens are discussed in the context of circum-Antarctic species distribution and limitations to dispersal in brooding benthic invertebrates.

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Published date: April 2009
Organisations: Ocean and Earth Science

Identifiers

Local EPrints ID: 65006
URI: http://eprints.soton.ac.uk/id/eprint/65006
ISSN: 0025-3162
PURE UUID: d733789c-c4f5-414b-b32a-802f72f0cf0f

Catalogue record

Date deposited: 27 Jan 2009
Last modified: 17 Jul 2017 14:10

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Contributors

Author: Nicholas Higgs
Author: Adam Reed
Author: Rachel Hooke
Author: David Honey
Author: Olaf Heilmayer
Author: Sven Thatje

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