Macroinvertebrates associated with Limnoperna fortunei (Dunker, 1857) (Bivalvia, Mytilidae) in Río de la Plata, Argentina

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An analysis was made of specific richness (S), specific diversity (H), equitability (J), frequency (F), dominance (Dm) and density (D) of the macroinvertebrates associated with the invasive species Limnoperna fortunei (Dunker, 1857), was made.

Limnoperna fortunei caused an increase in the specimen number on the rocky environment studied. The species richness and abundance of different taxa of macroinvertebrates, except mollusks was positively related to the presence and density of L.fortunei. Autochthonous gastropod species conversely, tended to be displaced.

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