Navigation Links
Farmed salmon could become an invasive species in forest streams

Ever since the Norwegians expanded commercial farming of salmon in the 1960s, the industry has continued to rapidly grow worldwide. It has expanded to such a degree that prices for farmed salmon have plummeted and, there is concern that farmed fish may become the next invasive species.

"Farmed fish escaping from marine net pens might become an invasive species in British Columbia, Washington or Alaska," says research fish biologist Peter Bisson. "Net pen culture of salmon is big business worldwide, and both advocates and opponents of salmon farming have been very vocal in stating their views. I wanted to look at the hard evidence to determine the short- and long-term risks to native species in streams on National Forests."

Bisson, a staff scientist with the Pacific Northwest Research Station/Forest Service, began work on the report, Assessment of the Risk of Invasion of National Forest Streams in the Pacific Northwest by Farmed Atlantic Salmon, to assess the potential impact of farmed salmon on native fishes inhabiting streams on National Forest System lands and to learn if concerns from both sides of the farmed-versus-wild fish debate had validity, based on an extensive literature review.

Here are some of the findings in the report:

  • At present, breeding populations of escaped farm salmon are not known to exist on National Forest System lands, but the locations of Atlantic salmon farms and the sightings of escaped salmon indicate that streams on four national forests may be at risk: the Tongass and Chugach NF in Alaska, and the Olympic and Mount Baker-Snoqualmie NF in Washington.

  • Atlantic salmon could transmit a serious disease or parasite to native fishes.

  • Escaped salmon may eventually adapt to local conditions, leading to self-sustaining populations.

  • Escaped salmon could compete with already at-risk species, such as steelhead.

"Given t he precarious state of many of our native salmon stocks," explains Bisson, "it seems prudent to be safe rather than sorry, and to be diligent in monitoring any reports of Atlantic salmon in Pacific Northwest streams whether in national forests or in state and private forests."


'"/>

Source:USDA Forest Service, Pacific Northwest Research Station


Related biology news :

1. Researchers reveal the infectious impact of salmon farms on wild salmon
2. Alaskan puzzles, monitoring provide insight about North Pacific salmon runs
3. To sea or not to sea: When it comes to salmon sex, size sometimes doesnt matter
4. Divergent life history shapes gene expression in brains of salmon
5. Escapee farmed salmon infiltrate fitter wild populations
6. Leave it to salmon to leave no stone unturned
7. Special chip provides better picture of salmon health
8. New report: Explosive growth changes salmon industry
9. Protein discovery could unlock the secret to better TB treatment
10. Tiny particles could solve billion-dollar problem
11. First atlas of key brain genes could speed research on cancer, neurological diseases
Post Your Comments:
*Name:
*Comment:
*Email:


(Date:6/30/2017)... , June 30, 2017 Today, ... developer and supplier of face and eye tracking ... Featured Product provider program. "Artificial ... innovative way to monitor a driver,s attentiveness levels ... from being able to detect fatigue and prevent ...
(Date:5/23/2017)... , May 23, 2017  Hunova, the first robotic gym for ... has been officially launched in Genoa, Italy . The ... and the USA . The technology was ... the market by the IIT spin-off Movendo Technology thanks to a 10 ... Multimedia News Release, please click: ...
(Date:5/6/2017)... RAM Group , Singaporean based ... in biometric authentication based on a novel  ... to perform biometric authentication. These new sensors are based on ... Ram Group and its partners. This sensor will have ... and security. Ram Group is a next generation ...
Breaking Biology News(10 mins):
(Date:7/26/2017)... ... July 25, 2017 , ... ... will garner a better understanding of the considerations needed for designing ideal guide ... The use of CRISPR-Cas9 to create targeted double-strand breaks in genomic DNA has ...
(Date:7/26/2017)... ... July 26, 2017 , ... NLP Logix ... years of diagnostic excellence by Mayo Clinic and the experience in developing and ... be distributed through the Microsoft Azure platform and will focus on assisting physicians ...
(Date:7/26/2017)... N.J. , July 26, 2017  Nurse practitioners play ... to the findings of a Merck Manuals survey ... recent medical conference, revealed that most (88 percent) believe they ... diagnoses, treatments and prescriptions. ... Merck Manuals survey of 210 ...
(Date:7/25/2017)... ... July 25, 2017 , ... Bactana Animal ... efficiency of livestock farming while reducing the use of antibiotics and hormones in ... from Cornell University. , These new proprietary technologies expand the breadth of ...
Breaking Biology Technology: