Rays and skates of Devon and Cornwall. III. The proportions of the sexes in nature and in commercial landings, and their significance to the fisherySteven, G.A. (1933) Rays and skates of Devon and Cornwall. III. The proportions of the sexes in nature and in commercial landings, and their significance to the fishery. Journal of the Marine Biological Association of the United Kingdom, 18 (2). pp. 611-626. Full text available as:
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