长江口新生沙洲底栖动物群落组成及多样性特征
Community structure and biodiversity characteristics of macrobenthos in the new shoal of the Changjiang Estuary
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摘要: 沙洲岛屿是河口生态系统的重要组成部分,是河口海岸带资源开发、自然保护及全球变化研究的重要对象.沙洲岛屿潮滩的底栖动物群落与其生活的底质构成了河口生态系统的底栖亚系统,是河口地区生物多样性最直接和最易于观察研究的一个层次,它们在揭示群落与环境变化的关系上具有重要的作用[1-2].九段沙是长江口现代发育过程中产生的一个新生沙洲,是继崇明岛、长兴岛和横沙岛之后的又一成陆冲积沙洲,是一块重要的河口沙洲型滨海湿地[3].九段沙受人类干扰较少,其生物资源保持着天然状态.
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Key words:
- benthic invertebrate /
- community /
- biodiversity /
- new shoal /
- Changjiang Estuary
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