Abstract
THE success obtained by the Department of the Ministry of Agriculture and Fisheries in breeding oysters (O. edulis) in the experimental tanks at Conway and Lympne1 suggested that a similar use might be made of the large outdoor tanks or ponds at the Port Erin Marine Biological Station. In normal summers the sea temperature in Port Erin Bay rarely rises above 59° F. seawards of the beaches, owing to the steepness of the beaches and the mid sea position of the Isle of Man; the maximum is reached at about the end of August2. The stagnant water in the ponds, however, follows air temperature much more closely than the sea, and this year gave surface readings during July and the first three weeks of August ranging mostly between 62° and 65° F; a range favourable for oyster breeding
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References
R. Dodgson and H. P. Sherwood, Oyster Breeding Experiments; in Reports on Sea Fisheries, Ministry Agric. and Fish., England and Wales 1919 et seq.
J. R. Bruce, J. Mar. Biol. Assoc., Plymouth, 15, 542; 1928.
A. Scott, Proc. and Trans. Biol. Soc. Liverpool, 39 and 41, 1925–27.
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ORTON, J., PARKE, M. & SMITH, W. Breeding of Oysters (O. edulis) at Port Erin. Nature 131, 26 (1933). https://doi.org/10.1038/131026a0
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DOI: https://doi.org/10.1038/131026a0
