We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Community Characteristics of the Macrozoobenthos and River Health Assessment in Headwater Streams of the Pihe River Basin, China.
- Authors
Yunxiang Fang; Guijian Liu
- Abstract
The Pihe River is one of the main tributaries of the Huaihe River in Anhui Province, China. In recent years, with the socio-economic development, the ecological environment within the basin has been seriously damaged. In order to understand the community structure of macrozoobenthos and assess the river health in headwater streams of the Pihe River, field investigation was conducted in six headwater streams in April 2015. The results showed that: 1) a total of 67 species were collected from the six streams. The species number was relatively higher in Manshui Stream and Maotan Stream, and it was 49 and 47 species, respectively; the species number in the other four rivers (Banhe Stream, Shangdong Stream, Qinglong Stream and Xipihe Stream) had little difference, and they were 30, 31, 29 and 30 species, respectively. 2) The results of one-way ANOVA and similarity analysis showed that there were no significant differences in the average species number in each sample of the six streams, and there was high species similarity among the six streams. 3) The density and biomass of macrozoobenthos in the whole study area were 439 ind./m2 and 4.54 g/m2, respectively. The Qinglong Stream showed the minimum density and biomass among the six streams, which were 328 ind./m2 and 1.85 g/m2, respectively. However, the result of ANOVA showed that there were no significant difference in the density and biomass of macrozoobenthos in the six streams. 4) The results of redundant analysis (RDA) showed that the main environmental factors affecting the spatial distribution of macrozoobenthos in headwater streams of the Pihe River were the sediment type, stream order, and total nitrogen. The eigenvalues of the first two axes were 0.107 and 0.085 respectively, which contributed to 19.1% of the total variance. 5) The health of the six streams was evaluated based on the arithmetic mean values of four indexes. The results showed that the health status of the Qinglong Stream was general, while other streams were good. The results of this study are of great importance to the protection and management of the Pihe River basin.
- Subjects
CHINA; BENTHIC animals; SOCIOECONOMICS; WATERSHEDS; ENVIRONMENTAL protection; SPECIES diversity
- Publication
Nature Environment & Pollution Technology, 2018, Vol 17, Issue 3, p983
- ISSN
0972-6268
- Publication type
Article