| 摘要: |
| 为了解南麂列岛国家海洋自然保护区岩礁相潮间带多毛类的生态现状和功能, 于2012 年5 月(春季)、8 月(夏季)、11 月(秋季)和2013 年2 月(冬季)在保护区内进行了4 次底栖生物调查, 对采集的多毛类样品进行鉴定, 并依此计算丰度、生物量和相关生物多样性指数。四季共采集到多毛类85 种, 春季多毛类平均丰度和平均生物量分别为492 个/m2和39.50 g/m2, 夏季为895 个/m2和20.95 g/m2, 秋季为639 个/m2和16.51 g/m2, 冬季为511 个/m2和9.04 g/m2。各断面的物种多样性指数为2.950～4.864, 均匀度指数为0.922～0.990, 种类丰富度指数为2.486～7.087。最后通过分析发现, 潮汐、季节变化和人类活动等因素不同程度地影响了多毛类在岩相潮间带的空间分布及群落特征。 |
| 关键词: 南麂岛 多毛类 群落特征 环境因素 |
| DOI：10.11759/hykx20130603003 |
| 分类号: |
| 基金项目:海洋公益性行业科研专项(201405007, 201305009), 国家海洋局第二海洋研究所基本科研业务费专项(JG0920, JT0806) |
|
| Preliminary study on ecology of polychaetes at intertidal rocky zone on Nanji Islands |
|
|
| Abstract: |
| A study of the spatio (4 transects: S1, S2, S3, S4) and seasonal (May, August, November in 2012 and February in 2013 which standed for spring, summer, autumn and winter) distribution of polychaetes was conducted on rocky intertidal zone of Nanji Archipalgo Marine Nature Reserve. The species of polychaete samples were identified and the abundances and biomasses and other ecology indexes were calculated respectively. A total of 85 species were found. The average abundance and biomass were 492 ind/m2 and 39.50 g/m2, 895 ind/m2 and 20.95 g/m2, 639 ind/m2 and 16.51 g/m2, 511 ind/m2 and 9.04 g/m2 from spring to winter. The Shannon-Wiener index varied 2.950～4.864; the Pielou's evenness was 0.922～0.990; and the Margalef's species richness was 2.486～7.087. These parameters showed that the tide, seasonal changing and human activity had significant impacts on spatial distribution and community character of polychaetes in rocky intertidal zone in different ways. |
| Key words: Nanji Islands polychaetes community character environmental factor |
