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 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
|