title: An approach to bioassessment of water quality using diversity measures based on species accumulative curves.
abstract: Traditional community-based bioassessment is time-consuming because they rely on full species-abundance data of a community. To improve bioassessment efficiency, the feasibility of the diversity measures based on species accumulative curves for bioassessment of water quality status was studied based on a dataset of microperiphyton fauna. The results showed that: (1) the species accumulative curves well fitted the Michaelis-Menten equation; (2) the β- and γ-diversity, as well as the number of samples to 50% of the maximum species number (Michaelis-Menten constant K), can be statistically estimated based on the formulation; (3) the rarefied α-diversity represented a significant negative correlation with the changes in the nutrient NH4-N; and (4) the estimated β-diversity and the K constant were significantly positively related to the concentration of NH4-N. The results suggest that the diversity measures based on species accumulative curves might be used as a potential bioindicator of water quality in marine ecosystems.
authors.affiliation: College of Marine Life Science, Ocean University of China, Qingdao 266003, China.
authors.forename: Guangjian
authors.initials: G
authors.lastname: Xu
authors.affiliation: College of Fisheries, Ocean University of China, Qingdao 266003, China.
authors.forename: Wei
authors.initials: W
authors.lastname: Zhang
authors.affiliation: College of Marine Life Science, Ocean University of China, Qingdao 266003, China. Electronic address: henglongxu@126.com.
authors.forename: Henglong
authors.initials: H
authors.lastname: Xu
mesh_terms: D059001:Aquatic Organisms; D044822:Biodiversity; D017753:Ecosystem; D005240:Feasibility Studies; D060753:Water Quality
keywords: Bioassessment; Marine ecosystems; Microperiphyton; Species diversity; Species-accumulative curves