Abstract:

The properties of the community structure of the Laizhou Bay were described based on the surveys in May, the main spawning season. The spawning stocks of fishery species have dramatically declined to a very low level and shift of dominant species had been observed. The slope from size spectrum analysis that is inversely proportional to the overall fishing effort could be an indicator of fishing mortality. The diversity and evenness index decreased from 1959 to 1993 and then increased in 1998. It is concluded that changes in the community structure are attributed to the anthropogenic activities, including direct high fishing pressure and marine pollution mainly from the drainage of waste waters.

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Date 2000/09/01

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