| Impact ID |
Scientific Name
|
Impact Type
|
Study Type
|
Study Location
|
Impact Description
|
Geographic Location
|
Reference
|
|
3954
|
Najas marina
|
Recreation
|
Anecdotal
|
Field
|
Najas marina grows up to the water surface in summer and may foul outboard motor propellers.
|
Mexico
|
35348
|
|
3955
|
Najas marina
|
Recreation
|
Observational
|
Field
|
Najas marina grows in thick masses that tangle in boat motors and propellers, impeding recreation and nagivation.
|
Mexico
|
35348
|
|
8760
|
Najas marina
|
Recreation
|
Anecdotal
|
N/A
|
Large infestations of spiny naiad (Najas marina) can sometimes interfere with recreational boating and fishing.
|
Great Lakes, USA
|
18779
|