Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4398008 | Journal of Experimental Marine Biology and Ecology | 2006 | 8 Pages |
Abstract
Here we report the first study of clearance rate and respiration rate of a deep living bivalve, Acesta excavata (J.C. Fabricius, 1779) (Mollusca: Limidae). We found that A. excavata had extreme values both for clearance and respiration rates compared to other bivalves. It has the second largest clearance rate ever reported, 13.36 l hâ 1 gâ 1, and the second lowest value of respiration rate, 0.12 ml O2 hâ 1 gâ 1. The gill area of 7063 mm2 gâ 1 is one of the largest found in bivalves so far. We suggest that these values indicate a physiological adaptation to the low and irregular food supply in the deep sea rather that a specific adaptation to depth.
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Authors
Johanna Järnegren, Dag Altin,