Productivity and age of the Antarctic scallop (Adamussium colbecki) in the Ross Sea
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), 239-256. (doi:10.1016/S0022-0981(03)00020-0).
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Description/Abstract
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.
| Item Type: | Article |
|---|---|
| ISSNs: | 0022-0981 (print) |
| Related URLs: | |
| Keywords: | Antarctic scallop; Bivalvia; Pectinidae; production; stable isotope analysis |
| Subjects: | Q Science > QL Zoology |
| Divisions: | University Structure - Pre August 2011 > School of Ocean & Earth Science (SOC/SOES) |
| Item ID: | 46965 |
| Date Deposited: | 20 Jul 2007 |
| Last Modified: | 01 Jun 2011 09:14 |
| Contributors: | Heilmayer, O. (Author) Brey, T. (Author) Chiantore, M. (Author) Cattaneo-Vietti, R. (Author) Arntz, W.E. (Author) |
| Date: | 8 April 2003 |
| Status: | Published |
| Contact Email Address: | oheilmayer@noc.soton.ac.uk |
| URI: | http://eprints.soton.ac.uk/id/eprint/46965 |
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