| 摘要: |
| 为了解洛阳江红树林自然保护区不同生境的潮间带软体动物物种多样性、数量时空分布及群落结构现状, 国家海洋局第三海洋研究所于2009 年4 月和11 月在洛阳江红树林自然保护区内选择了光滩(Qch1)、屿头红树林区(Qch2)、增垵红树林区(Qch3)和米草区(Qch4))4 条断面共3 种生境, 进行软体动物调查。共鉴定软体动物16 科23 种, 其中双壳类10 种, 腹足类13 种。物种水平分布, 红树林区最多有15 种, 米草区次之13 种, 光滩最少为7 种。该调查区域软体动物平均生物量为45.76 g/m2, 生物量低潮区>中潮区>高潮区; 平均密度为161 个/ m2, 栖息密度低潮区>中潮区>高潮区。丰度生物量比较法结果显示光滩断面软体动物群落结构不稳定, 红树林区和米草区群落结构较稳定。 |
| 关键词: 软体动物 红树林 米草 群落结构 |
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| 基金项目:福建滨海湿地潮间带生物研究(海三科(200717)); 福建沿岸红树林区底栖多毛类生态分布研究(HD11701-11(Y7));滨海湿地生态系统评价与修复技术研究(908-02-04-06); 福建滨海湿地及红树林生态系统评价( FJ908-02-02-04) |
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| Biodiversity and distribution of mollusc around the Luoyangjiang River mangrove nature reserve |
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| Abstract: |
| In order to understand the biological diversity and the stability of mollusc around the Luoyangjiang River mangrove nature reserve and to assess the environmental quality, we assessed mollusc diversity in April and November 2009. We recorded a total of 23 species of mollusc. The numbers of mollusc species differed between transects and were greater in spring than in autumn. Average biomass and density were 45.76 g/m2 and 161 inds./m2, respectively. Both biomass and density of mollusc invertebrates among tidal zones, ranked from highest to lowest, were as follows: low tidal zone, middle tidal zone, and high tidal zone. Both biomass and density were lowest in the high tidal zone. With the abundance biomass comparison (ABC) curve to analyze the structure of the mollusc community in the Luoyangjiang River mangrove nature reserve, it was found that the optical flat community disturbance was apparent. Other communities were not apparent. |
| Key words: mollusc mangrove spartina community structure |
