In:
Journal of the Fisheries Research Board of Canada, Canadian Science Publishing, Vol. 31, No. 2 ( 1974-02-01), p. 185-190
Abstract:
The mean annual volume of seawater pumped by Pacific oysters in Departure Bay, British Columbia is 1488 liters/g per year. The energy requirement for metabolism and pumping is 1.74 cal/liter, while the mean annual caloric content of the seawater is 60.4 cals/liter. Annual biodeposition is 8.9 g/g per year; these data applied to a mean biomass of 190 g/m 2 for a mature oyster reef show that 22,052 kcal are theoretically available for ingestion, but only 11% are retained, mostly to be biodeposited. The biodeposits have a caloric value of 1545 kcal/m 2 and furnish an important nutritional substrate. Another important contribution to the food web is the annual release of gametes, equivalent to 502 kcal/m 2 reef.
Type of Medium:
Online Resource
ISSN:
0015-296X
Language:
French
Publisher:
Canadian Science Publishing
Publication Date:
1974
detail.hit.zdb_id:
3036-3
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