IN NATURE of February 3, p. 146, I referred to experiments on determining the rate of growth of a fixed population of marked cockles (Cardium edule). In this experiment the box which was fixed in the ...
Hancock, D. A., and Urquhart, A. E., Fishery Investigations, Series II, 25(3) (1967). Hancock, D. A., and Simpson, A. C., in The Exploitation of Natural Animal ...
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