| 摘要: |
| 2006 年 7 月—2008 年 8 月对象山港 13 个站位进行了 8 个航次的大型底栖动物采样调查。运用较大的空间尺度和以食性为基础的功能群研究方法, 研究象山港大型底栖动物功能群组成及其多样性。根据食性类型将底栖动物划分为浮游生物食者(Pl)、植食者(Ph)、肉食者(C)、杂食者(O)和碎屑食者(D)5个功能群。 各功能群所含物种种类占全部种类的百分比从高到低的顺序依次为C > Pl > O > D > Ph; 栖息密度百分比高低依次为 Pl > C > D > Ph > O; 生物量百分比 |
| 关键词: 象山港, 大型底栖动物, 食性功能群, 营养级 |
| DOI：10.11693/hyhz201103015015 |
| 分类号: |
| 基金项目:宁波市重大科技计划项目, 2006C100030 号 |
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| A SURVEY OF MACROBENTHOS IN THE XIANGSHAN BAY |
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YOU Zhong-Jie1,2, TAO Lei2, JIAO Hai-Feng1, SHI Hui-Xiong1, LOU Dan1
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1.Ningbo Academy of Oceanology and Fishery;2.Faculty of Life Science and Biotechnology, Ningbo University
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| Abstract: |
| From July 2006 to August 2008, eight bimonthly cruises were conducted to investigate the macrobenthos at 13 research stations in the Xiangshan Bay. Based on feeding habits, we studied the composition and diversity of the macrobenthic communities. According to their food preferences, the macrobenthos were categorized into five functional groups including the planktophagous group (Pl), the phytophagous group (Ph), the camivorous group (C), the omnivorous group (O), and the detritivorous group (D). The number of species of each functional group can be ranked in the order of C > Pl > O > D > Ph; the percentage of the inhabited density of each functional group can be ranked in the order of Pl > C > D > Ph > O, and the percentage of the biomass of each functional group can be ranked as Pl > D > C > O > Ph. The number of species, inhabited density and biomass data from these two surveys were analyzed using two-factor ANOVA, and the results showed that the these parameters were significantly different among different stations although two surveys did not exhibit significant difference. This result confirmed that the structure of macrobenthic functional groups reflected habitat gradient in the intertidal zone and fluctuation in the natural environments. |
| Key words: Xiangshan Bay, Macrobenthic, Functional feeding group, Trophic levels |
