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Relationships between invertebrate benthos, environmental drivers and pollutants at a subcontinental scale
Denis-Roy, L.; Ling, S.D.; Fraser, K.M.; Edgar, G.J. (2020). Relationships between invertebrate benthos, environmental drivers and pollutants at a subcontinental scale. Mar. Pollut. Bull. 157: 111316. https://dx.doi.org/10.1016/j.marpolbul.2020.111316
In: Marine Pollution Bulletin. Macmillan: London. ISSN 0025-326X; e-ISSN 1879-3363, more
Peer reviewed article  

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Keyword
    Marine/Coastal
Author keywords
    Macroalgal epifauna; Infauna; Environmental impact assessment; Meiofauna; Macrofauna; Heavy metal pollution

Authors  Top 
  • Denis-Roy, L.
  • Ling, S.D.
  • Fraser, K.M.
  • Edgar, G.J.

Abstract
    Marine ecosystems are structured by an array of natural and anthropogenic drivers, their diverse influences varying between different community types and across space. We assessed consistency in variation in composition and richness for three communities (macro- and meio-faunal communities associated with macroalgae, and soft-sediment infaunal communities) across natural and pollution gradients at the subcontinental scale of southeastern Australia. Community structure varied with natural environmental factors (temperature, wave exposure) and, to a lesser extent, pollutant loads (catchment effects, heavy metals, hydrocarbons and nutrients) across 43 sites spanning 2700 km. The community types showed differing sensitivities to pollutants: algal macrofauna was most strongly associated with hydrocarbon pollution and nutrient loading; algal meiofauna with heavy metals and nutrients; and infauna with catchment effects and nutrients. Different taxonomic resolutions were needed to detect significant pollution relationships for the three community types, indicating that monitoring programmes are most effective if pollutant- and fauna-specific.

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