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The Comparative Behaviour of Native Oysters (Ostrea edulis) and Portuguese Oysters (Ostrea (Gryphea) angulata) in certain Lethal Solutions of T.N.T. (Trinitrotoluene).

Published online by Cambridge University Press:  11 May 2009

J. H. Orton
J. H. Orton
Affiliation:
Senior Naturalist at the Plymouth Laboratory
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Extract

In connection with the cause of the unusual mortality of oysters reported on the oyster beds in the Thames Estuary in 1920 (see Min. Agric. and Fisheries Report, Fishery Investigations II, 6, Nos. 3 and 4, 1923–24, London), it is of interest to compare the simultaneous effects of known solutions of T.N.T. (Trinitrotoluene) in sea-water on both Portuguese and native oysters. In order to obtain some information on this problem the experiments described in the following pages have been carried out at the request of the Fisheries Department of the Ministry of Agriculture and Fisheries and with the help of the Government Chemist and his assistants.

Type
Research Article
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 14 , Issue 2 , August 1926 , pp. 281 - 293
Copyright
Copyright © Marine Biological Association of the United Kingdom 1926

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References

* One brood Portuguese and one brood native included.

† On October 3rd when the maximum number of oysters was found gaping or dead, the pH was found to be 8.00 (courteously determined by Mr. C. F. A. Pantin).

‡ The salinity of the tank water is ordinarily high, and rose in the experimental tanks (5 and 8) to 36.92% which is a very high figure and abnormal in our seas.

* The tanks could not be examined on Oct. 2nd.

* Brood on No. 6.

† Spat on No. 21.

‡ I am indebted to Mr. C. F. A. Pantin for this determination.

§ The Oxygen requirements of Shellfish. Bull. U.S. Bureau of Fisheries, XXXII, 1912. (1914).

‖ O.M.I. Report loc. cit., p. 64, with full details in MSS. of Report.

* H. M. Fox, Proc. Camb. Phil. Soc. Biology, I, 2, p. 71, 1924.