| Impact ID |
Scientific Name
|
Impact Type
|
Study Type
|
Study Location
|
Impact Description
|
Geographic Location
|
Reference
|
|
8499
|
Glugea hertwigi
|
Commerce
|
Observational
|
Field
|
Glugea hertwigi has been implicated in mass mortalities of rainbow smelt (Osmerus mordax) in Lake Erie.
|
Lake Erie
|
16523
|
|
8500
|
Glugea hertwigi
|
Commerce
|
Observational
|
Field
|
Glugea hertwigi cysts in the ovaries of mature rainbow smelt females have also caused greatly reduced egg production.
|
Lake Erie and Lake Ontario
|
16518
|
|
8501
|
Glugea hertwigi
|
Commerce
|
Observational
|
Field
|
The presence of Glugea hertwigi in rainbow smelt in other die-off events had no significant effect on fecundity or condition, although it did cause growth to slow.
|
Long Point, Lake Erie, Ontario
|
16525
|
|
8502
|
Glugea hertwigi
|
Commerce
|
Anecdotal
|
N/A
|
While the economic impacts of Glugea hertwigi on the commercial smelt and salmonid (which rely on smelt) fisheries have not been realized, significant impacts could be realized if rainbow smelt mortalities were to increase as a result of infection.
|
|
1737
|
|
8503
|
Glugea hertwigi
|
Commerce
|
Anecdotal
|
N/A
|
Glugea hertwigi poses the largest threat, such as high infection rates and mortalities, to Lake Erie rainbow smelt populations compared to any other microsporidian.
|
|
31350
|
|
8504
|
Glugea hertwigi
|
Commerce
|
Anecdotal
|
N/A
|
Glugea hertwigi poses the largest threat, such as high infection rates and mortalities, to Lake Erie rainbow smelt populations compared to any other microsporidian.
|
|
31350
|
|
8505
|
Glugea hertwigi
|
Commerce
|
Observational
|
Field
|
In Lake Ontario, Glugea hertwigi has been isolated at a prevalence of 5% between 1968 and 1969.
|
Lake Ontario
|
16518
|
|
9619
|
Glugea hertwigi
|
Commerce
|
Anecdotal
|
N/A
|
Mortality events in Lake Erie are believed to be seasonal and directly related to parasite prevalence, including Glugea hertwigi.
|
Lake Erie
|
24347
|
|
9620
|
Glugea hertwigi
|
Commerce
|
Anecdotal
|
N/A
|
In Lake Ontario, Glugea hertwigi has been isolated at 5% prevalence (between 1968-1969) and 23% prevalence with heavy infections (from 1961-1971).
|
Lake Ontario
|
24347
|
|
9621
|
Glugea hertwigi
|
Commerce
|
Anecdotal
|
N/A
|
Another occurrence of Glugea hertwigi was recorded in Port Ontario, NY. However, prevalence and intensity were unknown.
|
Port Ontario, New York.
|
43212
|
|
9626
|
Glugea hertwigi
|
Commerce
|
Anecdotal
|
N/A
|
In Ontario waters of Lake Erie, Glugea hertwigi has been isolated at prevalences between 36 and 90% and historically 58% between 1961-1969.
|
nan
|
31382
|
|
9627
|
Glugea hertwigi
|
Commerce
|
Observational
|
Field
|
In Ontario waters of Lake Erie, Glugea hertwigi has been isolated at prevalances around 63% between 1968-1969.
|
Lake Erie, Ontario
|
16518
|
|
9628
|
Glugea hertwigi
|
Commerce
|
Observational
|
Field
|
In Ontario waters of Lake Erie, Glugea hertwigi has been isolated at prevalences between 90% in 1969.
|
Long Point Bay, Lake Erie, Ontario
|
16524
|
|
9629
|
Glugea hertwigi
|
Commerce
|
Observational
|
Field
|
In Ontario waters of Lake Erie, Glugea hertwigi has been found at prevalences between 36-78% between 1976-1977.
|
Long Point Bay, Lake Erie, Ontario
|
16525
|