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The fecundity of Ostrea edulis

Published online by Cambridge University Press:  11 May 2009

H. A. Cole
H. A. Cole
Affiliation:
Fisheries Experiment Station, Conway
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Extract

It is shown that the average number of embryos produced by a gravid oyster is approximately doubled each year until the oyster is 4 years old, when it may be regarded as adult. Estimates have been made of the quantities of embryos produced by one 1-year-old, eleven 2-year-old, fourteen 3-year-old and twenty-two adult oysters; the mean values for these year-classes are 91,600, 218,100, 462,600 and 902,900 respectively.

Since it is probable that the proportion of a population of oysters which matures in the female phase increases progressively up to the age of 4 years, it follows that adult oysters are for this reason superior to 2- or 3-year-old oysters as breeding stock, quite apart from the increased number of embryos produced by each oyster.

Type
Research Article
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 25 , Issue 2 , November 1941 , pp. 243 - 260
Copyright
Copyright © Marine Biological Association of the United Kingdom 1941

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References

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