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- W2368968135 abstract "Based on the data of bottom trawl surveys in Beibu Gulf in autumn of 1992 and spring of 1993,as well as the data in spring and autumn of 2006,variation of fi shery resources,structure and composition of catch species,dominance level and their dynamic changes were analyzed. The results show that seasonal difference of fi shery resource indices varied in different years,but the annual mean value varied slightly. The important species composition also varied obviously in different years. The dominant species was Acropoma japonicum both in spring of 1993 and autumn of 1992,but there were 2 dominant species of Acropoma japonicum and Parargyrops edita in spring of 2006,and 3 species of Acropoma japonicum,Leiognathus bindus and Trichiurus haumela in autumn of 2006,respectively. The amount of main species in 2006 decreased and the species were different from 1992-1993. Compared with 1992-1993,Shannon-Wiener index H′ and species evenness index J ′reduced evidently in 2006,but species richness index D changed slightly. The important species were characterized low-quality and miniaturization. The historical changes of fishery resources,characteristics of species subrogation and changes of diversity indices in Beibu Gulf were also discussed." @default.
- W2368968135 created "2016-06-24" @default.
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- W2368968135 date "2008-01-01" @default.
- W2368968135 modified "2023-09-24" @default.
- W2368968135 title "Changes of community structure of fishery species during spring and autumn in Beibu Gulf" @default.
- W2368968135 hasPublicationYear "2008" @default.
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