Correlating metrics of community structure with cellular indicators of stress in an Arkansas bayou

作者：Daniel Schlenk, Jenne Leus, W.G. Lahyer, Yuxuan Zhang · 发表于：OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information) · 年份：1994 · 研究领域：Environmental Toxicology and Ecotoxicology

A major disadvantage of using cellular indicators of stress or biomarkers to evaluate ecosystem health is the lack of a documented relationship between the cellular response and detrimental changes to an ecosystem. In an attempt to correlate ecosystem health with cellular stress, a Shannon-Weaver Index was constructed to assess fish species diversity at 13 sites in Bayou Barthalamew. With the exception of site 8, urban sites 1--4 possessed the lowest D-bar values than other sites on the Bayou. White Crappie (Pomoxis anularus), common grass carp (Cyprinus carpio) and large mouth bass (Micropteris salmoides) were sampled from each site, analyzed for expression of the cellular stress protein, metallothionein and compared with fish collected from another waterway of pristine nature. Initial findings from 3 sites indicated that metallothionein induction correlated with D-bar values (r{sup 2} = .985). Other stress proteins and cellular markers are currently being examined at the remaining sites in an attempt to correlate cellular effects and potential changes in species diversity.