| Impact ID |
Scientific Name
|
Impact Type
|
Study Type
|
Study Location
|
Impact Description
|
Geographic Location
|
Reference
|
|
8528
|
Myxobolus cerebralis
|
Commerce
|
Anecdotal
|
N/A
|
In 2006, low-level infections of Myxobolus cerebralis spores were detected in rainbow trout reared in a Pennsylvania state hatchery. Whirling disease spores were also isolated from Pennsylvania's Lake Erie steelhead in 1989, 1991, and 1997.
|
Pennsykvania, USA
|
16496
|
|
8529
|
Myxobolus cerebralis
|
Commerce
|
Observational
|
Field
|
However, wild trout populations of the mid-Atlantic region have not experienced observable declines, despite the presence of Myxobolus cerebralis and susceptible species.
|
Pennsykvania, USA
|
16538
|
|
8530
|
Myxobolus cerebralis
|
Commerce
|
Anecdotal
|
N/A
|
In spring 2011, Michigan authorities conducted pre-stocking testing for Myxobolus cerebralis on nine representative lots of hatchery fish (60 fish per lot, including brown trout, rainbow trout, chinook salmon, Atlantic salmon, coho salmon, lake trout, brook trout, splake, and lake herring), and all were found negative for the parasite.
|
|
31846
|
|
8531
|
Myxobolus cerebralis
|
Commerce
|
Anecdotal
|
N/A
|
Molecular evidence of Myxobolus cerebralis was detected in one sample, which contained pooled tissue from a total of 60 brown and rainbow trout. The trout were collected from three different sources: Slagle Creek, Harrietta Effluent Pond, and Brundage Spring Pond.
|
|
31846
|
|
9641
|
Myxobolus cerebralis
|
Commerce
|
Anecdotal
|
N/A
|
Economic impacts realized at a regional level outside the Great Lakes as a result of Myxobolus cerebralis infection include a nearly 29 percent reduction in the total value of trout sales and the closure of six private hatcheries in Utah in 2005.
|
|
42986
|
|
9673
|
Myxobolus cerebralis
|
Commerce
|
Anecdotal
|
N/A
|
The consequences of identifying Myxobolus cerebralis in a hatchery can be severe, including facility closure, expensive renovations, and destruction of infected stock, leading to high economic costs. At a national level, trout fisheries— 925 including the $325 million U.S. hatchery-raised rainbow trout industry (economic benefit reported 2004) that generated annual sales of more than $80 million from 2005-2007 —are especially at risk. In 2007, 86 percent of the United States’ 34.3 million trout intended for sale were lost due to a variety of diseases.
|
|
42985
|