期刊
JOURNAL OF MARINE SYSTEMS
卷 173, 期 -, 页码 9-20出版社
ELSEVIER
DOI: 10.1016/j.jmarsys.2016.11.006
关键词
Benthos; Diversity; Community structure; Environmental factor; The southern Yellow Sea
资金
- Strategic Priority Research Program of the Chinese Academy of Sciences [XDA11020303, XDA11020305]
- Ocean Public Welfare Scientific Research Project, State Oceanic Administration of the PRC [2015050041]
- National Natural Science Foundation of China [41176133, 41406157]
To detect large, temporal- and spatial-scale variations in the macrofaunal community in the southern Yellow Sea, data collected along the western, middle and eastern regions of the southern Yellow Sea from 1958 to 2014 were organized and analyzed. Statistical methods such as cluster analysis, non-metric multidimensional scaling ordination (nMDS), permutational multivariate analysis of variance (PERMANOVA), redundancy analysis (RDA) and canonical correspondence analysis (CCA) were applied. The abundance of polychaetes increased in the western region but decreased in the eastern region from 1958 to 2014, whereas the abundance of echinoderms showed an opposite trend. For the entire macrofaunal community, Margalefs richness (d), the Shannon-Wiener index (H') and Pielou's evenness (J) were significantly lower in the eastern region when compared with the other two regions. No significant temporal differences were found for d and H', but there were significantly lower values off' in 2014. Considerable variation in the macrofaunal community structure over the past several decades and among the geographical regions at the species, genus and family levels were observed. The species, genera and families that contributed to the temporal variation in each region were also identified. The most conspicuous pattern was the increase in the species Ophiura sarsii vadicola in the eastern region. In the western region, five polychaetes (Ninoe palmata, Notomastus latericeus, Paralacydonia paradoxa, Paraprionospio pinnata and Sternaspis scutata) increased consistently from 1958 to 2014. The dominance curves showed that both the species diversity and the dominance patterns were relatively stable in the western and middle regions. Environmental parameters such as depth, temperature and salinity could only partially explain the observed biological variation in the southern Yellow Sea. Anthropogenic activities such as demersal fishing and other unmeasured environmental variables may be more responsible for the long-term changes in the macrofaunal community. (C) 2016 Published by Elsevier B.V.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据