20 results for Potamopyrgus antipodarum (New Zealand mudsnail)

Impact ID Scientific Name Impact Type Study Type Study Location Impact Description Geographic Location Reference
2038 Potamopyrgus antipodarum Predation/Herbivory Experimental Field In a U.S. stream, dense colonization of Potamopyrgus antipodarium resulted in the snail consuming nearly all of the primary production. 13865
2049 Potamopyrgus antipodarum Predation/Herbivory Observational Field Potamopyrgus antopodarum accounted for the majority of invertebrate density in a Yellowstone system, totaling 65-95% of secondary production. 24671
2051 Potamopyrgus antipodarum Predation/Herbivory Experimental Laboratory Oncorhynchus mykiss (rainbow trout) readily feed on Potamopyrgus antipodarum, but receive far fewer nutrients from them than other invertebrates. Rainbow trout that were fed on a diet of P. antipodarum lost 0.14-0.48% of their initial weight per day. 17930
2052 Potamopyrgus antipodarum Predation/Herbivory Observational Field Potamopyrgus antipodarum made up the majority of invertebrate secondary production in Yellowstone area rivers. 24671
3708 Potamopyrgus antipodarum Predation/Herbivory Observational Field Potamopyrgus antipodarum was found in densities of 200,000 per m2 in the Colorado River, storing most of the Mercury (Hg) accumulations. In areas with no or fewer mudsnails, Hg flowed to fish populations. Colorado River, Arizona, USA 34376
4648 Potamopyrgus antipodarum Predation/Herbivory Anecdotal N/A Potamopyrgus antipodarum is thought to pose a threat to trout. Spring Creek, Pennsylvania 36953
5219 Potamopyrgus antipodarum Predation/Herbivory Observational Field Native fishes feed upon Potamopyrgus antipodarum, although evidence suggests that the snail is not a preferred prey item to many predatory fish in Lithuania, as they are energetically inferior to other native snails. Lithuania 37968
5734 Potamopyrgus antipodarum Predation/Herbivory Observational Field High densities of Potamopyrgus antipodarum can consume up to 75% of gross primary production and alter nitrogen and carbon cycling. 40132
5735 Potamopyrgus antipodarum Predation/Herbivory Experimental Field Potamopyrgus antipodarum can impact fish diets and physiological condition. 40132
5737 Potamopyrgus antipodarum Predation/Herbivory Observational Field In an Australian stream, Potamopyrgus antipodarum had a positive effect on native invertebrate densities. Australia 40132
8308 Potamopyrgus antipodarum Predation/Herbivory Experimental Laboratory While the New Zealand mudsnail (Potamopyrgus antipodarum) has been documented as a food source for recreationally valuable salmonids, its lack of digestibility could be detrimental to its predators. 17930
8309 Potamopyrgus antipodarum Predation/Herbivory Experimental Laboratory 53.8% of New Zealand mudsnail (Potamopyrgus antipodarum) passed through the digestive system of rainbow trout, Oncorhynchus mykiss alive, with only 8.5% of snails estimated to have been fully digested. 17930
8310 Potamopyrgus antipodarum Predation/Herbivory Anecdotal N/A Unsuitability of the New Zealand mudsnail (Potamopyrgus antipodarum) as a food source, and its potential competitive effects within lower trophic levels, may affect food availability and alter food web processes in invaded systems. 17665
9178 Potamopyrgus antipodarum Predation/Herbivory Anecdotal N/A Potamopyrgus antipodarum can also drastically alter primary production in some streams by grazing. 42544
9243 Potamopyrgus antipodarum Predation/Herbivory Anecdotal N/A Potamopyrgus antipodarum consumes large portions of food resources. 42717
9614 Potamopyrgus antipodarum Predation/Herbivory Observational Field Native fish such as trout consuming Potamopyrgus antipodarum leads to lower body weights and poorer body conditions in cultivated and wild fish. 43216
9615 Potamopyrgus antipodarum Predation/Herbivory Observational Field When present in high densities, Potamopyrgus antipodarum can greatly alter food webs. 43216
9882 Potamopyrgus antipodarum Predation/Herbivory Observational Field In Spirit Lake, Washington, gut analysis revealed that Oncorhynchus mykiss have predated on Potamopyrgus antipodarum since 2015. Abundance of Potamopyrgus antipodarum in Oncorhynchus mykiss diet has increased since first discovered in 2015. Spirit Lake, Washington, USA 44775
9883 Potamopyrgus antipodarum Predation/Herbivory Observational Field In Spirit Lake, Washingotn, stable isotope analysis revealed that Potamopyrgus antipodarum provide negligible dietary nutrients or caloric content to Oncorhynchus mykiss. Spirit Lake, Washington 44775
9887 Potamopyrgus antipodarum Predation/Herbivory Observational Field On Madeira Island, Portugal, benthic communities have been altered by the presence of Potamopyrgus antipodarum including the reduction in relative abundance of native grazers, filter feeders, and detrivores. In some invaded sites, relatively common detrivores like Asellus sp. were absent. Madeira Island, Portugal 44883

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