| 摘要: |
| 于1984年4-11月在莱州湾水域进行资源调查。分析表明,主要22种虾、蟹和头足类的捕获量为372400尾,8843kg；动物种类多样性H'值为1.80－2.36。其中春季(5月) H'值较高,为2.36；夏季(8月)的为1.89；秋季(11月)的仅为1.80。显示种类多样性为中等偏低,种类群聚结构较简单。这3个季度月的种类多样性等值钱分布趋势是,莱州湾中部和黄河口北侧的H'值,一般高于邻近水域。 |
| 关键词: 无脊椎动物 群聚多样性 |
| DOI： |
| 分类号: |
| 基金项目:中国科学院海洋研究所“六·五”研究课题 |
附件 |
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| ABUNDANCE AND SPECIES DIVERSITY CHARACTERISTICS OF MAIN INVERTEBRATE SPECIES IN LAIZHOU BAY |
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Wu Yaoquan
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Institute of Oceanology, Academia Sinica, Qingdao 266071
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| Abstract: |
| Trawl net samples collected from April to November in 1984 in Laizhou Bay yielded 22 species of main invertebrates, Crustacea and Mollusca among 372 400 individuals totalling 8 843kg. The community species diversity index H' was 1.80 - 2.36, being 2.36 in May, 1.89 in August and 1.80 in November which display that species diversity was medium and community structure rather simple.
The distribution of seasonal species diversity H' isopleths of May, August and November showed that the centra water region of Laizhou Bay and the northern side of the Yellow River mouth are higher than that in adjacent Waters. |
| Key words: Invertebrate abundance, Species diversity |
