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Quantitative assessment of direct and indirect impacts of introduced New Zealand screwshells (Maoricolpus roseus) on native soft sediment assemblages
We used an in situ manipulative experiment to assess the impacts of the introduced New Zealand screwshell, Maoricolpus roseus, on native soft-sediment community structure and habitat characteristics in SE Tasmania. Impacts were assessed for high and low screwshell density and for the effect of live and dead screwshells, as well as those containing hermit crabs.