关键词: 厦门湾海域, 大型底栖动物, 生物多样性, 相关性分析, Xiamen Bay, macrobenthos, biodiversity, correlation analysis

Abstract: In order to study the spatial distribution of biodiversity factors of macrobenthos in Xiamen Bay and the correlation with environmental factors, the investigation and sampling of macrobenthos in Xiamen Bay were conducted in August 2012. The species number, diversity index H ', AZTI Marine biological index AMBI and multi-variable AZTI Marine biological index M-AMBI were calculated and analyzed, and the correlation between each index and environmental factors was calculated using SPSS software. The results showed that there were 103 species in 8 phyla in the survey ares, with the average species number at each station is 11, the average diversity index H ' is 2.328, the average AMBI is 1.739, and the average M-AMBI is 0.538. There was a significant or extremely significant correlation between the number of species at each station and TOC, salinity, pH, DO and COD, and a significant or extremely significant correlation between AMBI and sulfide, salinity and petroleum hydrocarbons. The diversity index H 'and M-AMBI of each station were significantly or extremely significantly correlated with sulfides, petroleum hydrocarbons, organic carbon, salinity, pH, dissolved oxygen and chemical oxygen demand.