| Impact ID |
Scientific Name
|
Impact Type
|
Study Type
|
Study Location
|
Impact Description
|
Geographic Location
|
Reference
|
|
4507
|
Obesogammarus obesus
|
Competition
|
Observational
|
Field
|
There is evidence that it may outcompete other species; the high density of Obesogammarus obesus (3,300 individuals/m2) in the Danube River in Germany was associated with the displacement of several other amphipod species.
|
Danube River
|
36438
|
|
6943
|
Obesogammarus obesus
|
Competition
|
Observational
|
Field
|
Obesogammarus obesus dominates periphyton in shallow depths.
|
Dnieper basin
|
42084
|
|
6944
|
Obesogammarus obesus
|
Competition
|
Observational
|
Field
|
Obesogammarus obesus is the largest size class distribution (>50% of Danube and its main tributaries). This species is often dominant in communities.
|
River Danube, Hungary
|
36424
|