| Impact ID |
Scientific Name
|
Impact Type
|
Study Type
|
Study Location
|
Impact Description
|
Geographic Location
|
Reference
|
|
3879
|
Dreissena rostriformis bugensis
|
Competition
|
Anecdotal
|
N/A
|
Dreissena polymorpha & Dreissena bugensis directly compete for resources
|
Great Lakes
|
13595
|
|
3880
|
Dreissena rostriformis bugensis
|
Competition
|
Anecdotal
|
N/A
|
Sphaerium corneum & Dreissena bugensis directly compete for resources
|
Great Lakes
|
13595
|
|
7390
|
Dreissena rostriformis bugensis
|
Competition
|
Anecdotal
|
N/A
|
Dreissena bugensis have negative impacts on native bivalves through exploitative competition or biofouling.
|
|
42296
|
|
7404
|
Dreissena rostriformis bugensis
|
Competition
|
Observational
|
Field
|
In some lakes, Dreissena bugensis outcompeted Dreissena polymorpha due to various reasons not yet fully understood.
|
|
42296
|
|
8229
|
Dreissena rostriformis bugensis
|
Competition
|
Anecdotal
|
N/A
|
Declines in Diporeia spp., another benthic invertebrate, have been highly correlated with dreissenid expansion, potentially due to reductions in phytoplankton abundance (an important food source) or through the introduction of toxins and pathogens associated with dreissenids and their waste products
|
Lake Michigan, USA
|
24624
|
|
8230
|
Dreissena rostriformis bugensis
|
Competition
|
Observational
|
Field
|
Likely correlated to Dreissena bugensis and declining late winter phytoplankton blooms and chlorophyll a concentrations in Lake Michigan from 2001 to 2008, there was a reported decline in cyclopoid and omnivorous calanoid copepod populations over this period
|
Lake Michigan, USA
|
24627
|
|
8231
|
Dreissena rostriformis bugensis
|
Competition
|
Observational
|
Field
|
Spring phytoplankton biomass and primary production in Lake Michigan decreased 87% and 70%, respectively, from 1995-98 to 2007-08, after Dreissena bugensis entered Lake Michigan. This could result in increased competition among planktivorous species.
|
Lake Michigan, USA
|
24624
|
|
8455
|
Dreissena rostriformis bugensis
|
Competition
|
Observational
|
Field
|
In the Netherlands, invasive Dreissena bugensis out competed Dreissena polymorpha and completely replaced them.
|
Netherlands
|
37111
|
|
10084
|
Dreissena rostriformis bugensis
|
Competition
|
Observational
|
Field
|
In Lake Huron, a 2017 benthic survey found that Dreissena rostriformis bugensis comprised 98% of total wet biomass of the entire benthos and 25% of total lake-wide benthic density.
|
Lake Huron, USA
|
46150
|
|
10086
|
Dreissena rostriformis bugensis
|
Competition
|
Observational
|
Field
|
In Lake Michigan, a 2015 benthic survey found that Dreissena rostriformis bugensis comprised 99.5% of total wet biomass of the entire benthos and 61% of total lake-wide benthic density.
|
Lake Michigan, USA
|
46150
|
|
10088
|
Dreissena rostriformis bugensis
|
Competition
|
Observational
|
Field
|
In Lake Michigan and Lake Huron, the filter feeders, Diporeia sp. and Sphaeriidae, abundance decreased as Dreissena rostriformis bugensis density increased.
|
Lake Huron and Lake Michigan, USA
|
46150
|