Benthic diatom community response to environmental variables and metal concentrations in a contaminated bay adjacent to Casey Station, Antarctica

摘要: This study examined the effects of anthropogenic contaminants and environmental variables on composition benthic diatom communities within a contaminated bay adjacent to an abandoned waste disposal site in Antarctica. The combination geographical, chemical data included explained all variation observed communities. data, particularly metal concentrations, 45.9% communities, once grain-size spatial structure had been excluded. Of metals, tin greatest proportion (28%). Tin was very highly correlated (R2 > 0.95) with several other (copper, iron, lead, sum metals), which similarly high proportions total variation. Grain-size 23% pure component only 1.8% variance. demonstrates that much compositional variability can be by concentrations contaminants.