Navigation Links
Escapee farmed salmon infiltrate fitter wild populations

There is growing concern about the threats that farmed Atlantic salmon escapees constitute to wild salmon populations.

Consumers and environmentalists are concerned about farmed salmon yet heritable changes that have accumulated in farmed strains at the genetic level are largely unknown.

In new research published in the journal Molecular Ecology, researchers have found scientific evidence that farmed salmon have evolved genetically differently to wild salmon, therefore backing claims that any integration of farmed salmon back into the wild through escapees could have a negative impact on the health of wild salmon populations.

Christian Roberge and Louis Bernatchez, two of the co-authors on this research paper explain: "Using a 3,557 genes microarray and a unique set-up in which farmed and wild salmon of the corresponding natural population were grown in identical conditions, we document for the first time genome-wide changes in transcription profiles that evolved in parallel between farmed strains from North America and Europe within five to seven generations."

"The magnitude of the accumulated differences was of approximately 20% for 1.5% of the expressed genes in juvenile salmon. These findings provide support to the claim that hybridisation with farmed escapees may alter the gene pool of wild salmon, reduce its fitness and accelerate its decline."


'"/>

Source:Blackwell Publishing Ltd.


Page: 1

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. Leave it to salmon to leave no stone unturned
6. Special chip provides better picture of salmon health
7. Farmed salmon could become an invasive species in forest streams
8. New report: Explosive growth changes salmon industry
9. Measuring the impact of post-genomics on Mediterranean populations
10. A new study examines how shared pathogens affect host populations
11. New discovery: Molecular variation in one gene affects the growth of natural populations
Post Your Comments:
*Name:
*Comment:
*Email:


(Date:4/19/2016)... 2016 The new GEZE SecuLogic ... web-based "all-in-one" system solution for all door components. It ... the door interface with integration authorization management system, and ... The minimal dimensions of the access control and the ... installations offer considerable freedom of design with regard to ...
(Date:4/13/2016)... April 13, 2016  IMPOWER physicians supporting Medicaid patients ... a new clinical standard in telehealth thanks to a ... the higi platform, IMPOWER patients can routinely track key ... body mass index, and, when they opt in, share ... visit to a local retail location at no cost. ...
(Date:3/23/2016)... WAKEFIELD, Massachusetts , March 23, 2016 ... kombiniert im Interesse erhöhter Sicherheit Gesichts- und ... Xura, Inc. (NASDAQ: MESG ... heute bekannt, dass das Unternehmen mit SpeechPro ... insbesondere aus der Finanzdienstleistungsbranche, wird die Möglichkeit ...
Breaking Biology News(10 mins):
(Date:6/27/2016)... ... June 27, 2016 , ... Newly ... technologies, services and solutions to the healthcare market. The company's primary focus is ... manufacturing, sales and marketing strategies that are necessary to help companies efficiently bring ...
(Date:6/27/2016)...   Ginkgo Bioworks , a leading organism ... today awarded as one of the World Economic ... most innovative companies. Ginkgo Bioworks is engineering biology ... world in the nutrition, health and consumer goods ... customers including Fortune 500 companies to design microbes ...
(Date:6/24/2016)... ... ... While the majority of commercial spectrophotometers and fluorometers use the z-dimension of 8.5 ... end machines that use the more unconventional z-dimension of 20mm. Z-dimension or ... the cuvette holder. , FireflySci has developed several Agilent flow cell product lines ...
(Date:6/23/2016)... (PRWEB) , ... June 23, 2016 , ... ... is pleased to announce the launch of their brand, UP4™ Probiotics, into Target ... over 35 years, is proud to add Target to its list of well-respected ...
Breaking Biology Technology: