Saving by freezing? Oxygen consumption rates of Adamussium colbecki in a latitudinal context


Heilmayer, O. and Brey, T. (2003) Saving by freezing? Oxygen consumption rates of Adamussium colbecki in a latitudinal context. Marine Biology, 143, (3), 477-484. (doi:10.1007/s00227-003-1079-7).

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Description/Abstract

Standard metabolic rates of the endemic Antarctic scallop, Adamussium colbecki (Smith, 1902), were measured in austral summer and under simulated winter conditions. Average mass-specific metabolic rates were significantly different between "summer" (151.17±45.06 µl O 2 g -1 h -1) and "winter" (106.52±39.65 µl O 2 g -1 h -1) animals. The overall metabolic rates of A. colbecki are comparable to those of other Antarctic bivalve species, but well below those of temperate scallop species. Data for 24 scallop populations (13 species) from different latitudes give no evidence for elevated metabolic rates in A. colbecki as suggested by the concept of "metabolic cold adaptation". A world-wide comparison of metabolic rate and overall growth performance of scallops indicates that in the Antarctic scallop the energetic advantage of low basal metabolism does not counterbalance the disadvantage of the prolonged seasonal period of food shortage.

Item Type: Article
ISSNs: 0025-3162 (print)
Related URLs:
Subjects: Q Science > QL Zoology
Divisions: University Structure - Pre August 2011 > School of Ocean & Earth Science (SOC/SOES)
ePrint ID: 46964
Date Deposited: 20 Jul 2007
Last Modified: 27 Mar 2014 18:30
URI: http://eprints.soton.ac.uk/id/eprint/46964

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