Spatial and temporal variation of fish assemblages in a subtropical small stream of the Huangshan Mountain
文献类型：期刊论文
| 作者 | Yan, Yunzhi1; He, Shan1; Chu, Ling1; Xiang, Xiuying1; Jia, Yanju2; Tao, Juan3; Chen, Yifeng3 |
| 刊名 | CURRENT ZOOLOGY
 |
| 出版日期 | 2010 |
| 卷号 | 56期号:6页码:670-677 |
| 关键词 | Assemblage structure Low-head dam Stream fish Spatial-temporal pattern |
| ISSN号 | 1674-5507 |
| 通讯作者 | Yan, YZ, Anhui Normal Univ, Coll Life Sci, Prov Key Lab Biot Environm & Ecol Safety Anhui, Wuhu 241000, Anhui, Peoples R China |
| 中文摘要 | Spatial and temporal variation of fish assemblages were investigated seasonally from May 2007 to February 2008 across 11 study sites in a subtropical small stream, the Puxi Stream, of the Huangshan Mountain. Along the longitudinal gradient from headwater to downstream, fish species richness and abundance increased gradually, but then decreased significantly at the lower reaches. The highest species richness and abundance were observed in August and the lowest in February. Based on analysis of similarities (ANOSIM), fish assemblages were significantly different in spatial variation but not in temporal variation. Although differences were observed both among sites and among stream orders, the lower R value in order-variation suggested stream order was not the optimal factor explaining the spatial variation of fish assemblages. In addition, dam construction did not significantly alter fish assemblages in the sites adjacent to and immediately downstream to dams. Using cluster analysis and non-metric Multi Dimensional Scaling analysis (NMS), assemblages were separated into three groups at a Bray-Curtis similarity value of 42%: the upper, middle and lower groups. Following analysis of similarity percentages of species contributions (SIM-PER), shifts in occurrence or abundance of S. curriculus, Z. platypus, R. bitterling and A. fasciatus contributed most to the differences amongst the three groups. Standard Deviation Redundancy Analysis (RDA) suggested that habitat structure (such as elevation, substrate, and flow velocity) contributed to the spatial and temporal pattern of fish assemblages in the Puxi Stream. In conclusion, the fish assemblages in Puxi Stream presented significant spatial but not temporal variation. Human disturbance has perhaps induced the decrease in species diversity in the lower reaches. However, no significant change was observed for fish assemblages in sites far from and immediately downstream from low-head dams [Current Zoology 56 (6): 670-677, 2010]. |
| 英文摘要 | Spatial and temporal variation of fish assemblages were investigated seasonally from May 2007 to February 2008 across 11 study sites in a subtropical small stream, the Puxi Stream, of the Huangshan Mountain. Along the longitudinal gradient from headwater to downstream, fish species richness and abundance increased gradually, but then decreased significantly at the lower reaches. The highest species richness and abundance were observed in August and the lowest in February. Based on analysis of similarities (ANOSIM), fish assemblages were significantly different in spatial variation but not in temporal variation. Although differences were observed both among sites and among stream orders, the lower R value in order-variation suggested stream order was not the optimal factor explaining the spatial variation of fish assemblages. In addition, dam construction did not significantly alter fish assemblages in the sites adjacent to and immediately downstream to dams. Using cluster analysis and non-metric Multi Dimensional Scaling analysis (NMS), assemblages were separated into three groups at a Bray-Curtis similarity value of 42%: the upper, middle and lower groups. Following analysis of similarity percentages of species contributions (SIM-PER), shifts in occurrence or abundance of S. curriculus, Z. platypus, R. bitterling and A. fasciatus contributed most to the differences amongst the three groups. Standard Deviation Redundancy Analysis (RDA) suggested that habitat structure (such as elevation, substrate, and flow velocity) contributed to the spatial and temporal pattern of fish assemblages in the Puxi Stream. In conclusion, the fish assemblages in Puxi Stream presented significant spatial but not temporal variation. Human disturbance has perhaps induced the decrease in species diversity in the lower reaches. However, no significant change was observed for fish assemblages in sites far from and immediately downstream from low-head dams [Current Zoology 56 (6): 670-677, 2010]. |
| WOS标题词 | Science & Technology ; Life Sciences & Biomedicine |
| 学科主题 | Zoology |
| 类目[WOS] | Zoology |
| 研究领域[WOS] | Zoology |
| 关键词[WOS] | RIVER-BASIN ; HABITAT ; COMMUNITIES ; STABILITY ; GRADIENTS ; PATTERNS ; BRAZIL ; FAUNA ; INDEX ; DAMS |
| 收录类别 | SCI |
| 资助信息 | National Basic Research Program of China [2009CB119200]; Anhui Provincial Natural Science Foundation [090413080]; Natural Science Foundation of Anhui Education Bureau [KJ2008B211, KJ2009A110] |
| 语种 | 英语 |
| WOS记录号 | WOS:000284218300004 |
| 公开日期 | 2010-12-23 |
| 源URL | [http://ir.ihb.ac.cn/handle/342005/13453]  |
| 专题 | 水生生物研究所_水生生物多样性与资源保护研究中心_期刊论文 |
| 作者单位 | 1.Anhui Normal Univ, Coll Life Sci, Prov Key Lab Biot Environm & Ecol Safety Anhui, Wuhu 241000, Anhui, Peoples R China 2.Hebei Univ Econ & Business, Coll Biol Sci & Engn, Shijiazhuang 050061, Peoples R China 3.Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yan, Yunzhi,He, Shan,Chu, Ling,et al. Spatial and temporal variation of fish assemblages in a subtropical small stream of the Huangshan Mountain[J]. CURRENT ZOOLOGY,2010,56(6):670-677. |
| APA | Yan, Yunzhi.,He, Shan.,Chu, Ling.,Xiang, Xiuying.,Jia, Yanju.,...&Chen, Yifeng.(2010).Spatial and temporal variation of fish assemblages in a subtropical small stream of the Huangshan Mountain.CURRENT ZOOLOGY,56(6),670-677. |
| MLA | Yan, Yunzhi,et al."Spatial and temporal variation of fish assemblages in a subtropical small stream of the Huangshan Mountain".CURRENT ZOOLOGY 56.6(2010):670-677. |
入库方式： OAI收割
来源：水生生物研究所
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