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Productivity and age of the Antarctic scallop (Adamussium colbecki) in the Ross Sea

Record type: Article

Body size, geographical distribution, and biomass make Adamussium colbecki (Smith, 1902) one of the most conspicuous bivalve species in the Antarctic. Based on samples collected in austral summer 1999/2000 in Terra Nova Bay, the annual formation of shell growth bands visible on X-ray photographs was verified by stable isotope analysis. A general von Bertalanffy growth function was fitted to size-at-age data of 25 individuals (H?=108.86 mm, K=0.114 year?1, t0=?0.367, D=1.284). Somatic production calculated from mass-specific growth rates was 234.6 kJ m?2 year?1. Gonadal productivity amounted to 70.92 kJ m?2 year?1. Annual somatic and gonad production-to-biomass ratios (P/B) were 0.199 and 0.052, respectively. According to its consumption and production, A. colbecki is likely to play a significant role in the trophic web of Terra Nova Bay.

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Citation

Heilmayer, O., Brey, T., Chiantore, M., Cattaneo-Vietti, R. and Arntz, W.E. (2003) Productivity and age of the Antarctic scallop (Adamussium colbecki) in the Ross Sea Journal of Experimental Marine Biology and Ecology, 288, (2), pp. 239-256. (doi:10.1016/S0022-0981(03)00020-0).

More information

Published date: 8 April 2003
Keywords: Antarctic scallop, Bivalvia, Pectinidae, production, stable isotope analysis

Identifiers

Local EPrints ID: 46965
URI: http://eprints.soton.ac.uk/id/eprint/46965
ISSN: 0022-0981
PURE UUID: 8fafb017-f260-4e7d-8c70-2456eb4fedf4

Catalogue record

Date deposited: 20 Jul 2007
Last modified: 17 Jul 2017 15:05

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Contributors

Author: O. Heilmayer
Author: T. Brey
Author: M. Chiantore
Author: R. Cattaneo-Vietti
Author: W.E. Arntz

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