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大珠母贝群体大小、体重组成变化的初步观察
许志坚¹, 许义江¹
广东海南行政区水产研究所

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PRELIMINARY OBSERVATION OF THE STRUCTURAL CHANGE OF THE AGGREGATE SIZE AND WEIGHT OF PEARL OYSTER

Abstract:

This article is a preliminary observation oi the structural change of the aggregate size and weight of pearl oyster.Observation shows clearly that, because of over catching, bigger and older pearl oysters are diminishing from the latest harvesting, Sources of supplies of pearl oysters have been seriously damaged. We appeal all departments concerned to pay attention to the protection of the source supplies of these pearl oysters.

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