| Impact ID |
Scientific Name
|
Impact Type
|
Study Type
|
Study Location
|
Impact Description
|
Geographic Location
|
Reference
|
|
8277
|
Dreissena polymorpha
|
Environmental Water Quality
|
Observational
|
Field
|
Diatom abundance declined by 82-91%, and transparency, as measured by Secchi depth, increased by 100% during the first years of the Dreissena polymorpha invasion in Lake Erie.
|
Lake Erie, USA
|
13805
|
|
8278
|
Dreissena polymorpha
|
Environmental Water Quality
|
Observational
|
Field
|
In Lake Huron's Saginaw Bay, sampling stations with high zebra mussel (Dreissena polymorpha) populations experienced a 60-70% drop in chlorophyll a and a doubling of Secchi depth.
|
|
24583
|
|
8279
|
Dreissena polymorpha
|
Environmental Water Quality
|
Observational
|
Field
|
Phytoplankton biomass declined by 85% following the invasion of the Dreissena polymorpha mussel in the Hudson River.
|
Hudson River
|
13837
|
|
8280
|
Dreissena polymorpha
|
Environmental Water Quality
|
Observational
|
Field
|
Microcystis became a prevalent alga in Saginaw Bay, Lake Huron following the invasion of zebra mussels (Dreissena polymorpha). The introduction appeared to spur a number of other changes to the phytoplankton community as well, including a shift from shade-tolerant species to light-tolerant species. This study, along with others, indicates that zebra mussels can have a significant effect on nutrient cycling in invaded ecosystems.
|
Saginaw Bay, Lake Huron, USA
|
24586
|
|
8281
|
Dreissena polymorpha
|
Environmental Water Quality
|
Observational
|
Field
|
Zebra mussels (Dreissena polymorpha) can direct phosphorus and other nutrients to those nearshore areas inhabited by mussels and retain them there, while offshore regions suffer from declining nutrient levels and often become mesotrophic or oligotrophic.
|
Lake Erie, Ontario, Canada
|
24587
|