Navigation Links
Growing risks from hatchery fish
Date:5/14/2012

Portland, Oregon May 14, 2012 -- A newly published collection of more than 20 studies by leading university scientists and government fishery researchers in Alaska, British Columbia, Washington, Oregon, California, Russia and Japan provides mounting evidence that salmon raised in man-made hatcheries can harm wild salmon through competition for food and habitat.

"The genetic effects of mixing hatchery fish with wild populations have been well-documented," says journal editor David Noakes from Oregon State University. "But until now the ecological effects were largely hypothetical. Now we know the problems are real and warrant more attention from fisheries managers."

The research volume, published in the May issue of Environmental Biology of Fishes, brings together 23 peer-reviewed, independent studies carried out across the entire range of Pacific salmon, including some of the first studies describing the impact of hatcheries on wild salmon populations in Japan and Russia.

The studies provide new evidence that fast-growing hatchery fish compete with wild fish for food and habitat in the ocean as well as in the rivers where they return to spawn. The research also raises questions about whether the ocean can supply enough food to support future increases in hatchery fish while still sustaining the productivity of wild salmon.

"This isn't just an isolated issue," says Pete Rand, a biologist at the Wild Salmon Center and a guest editor of the publication. "What we're seeing here in example after example is growing scientific evidence that hatchery fish can actually edge out wild populations."

Losing wild fish would mean losing the genetic diversity that has allowed salmon to survive for centuries. Unlike hatchery fish, wild salmon populations have a range of highly specialized adaptations to the natural environment. These adaptations not only help them return to their home streams to spawn, but also increase their ability to withstand env
'/>"/>

Contact: Pete Rand
prand@wildsalmoncenter.org
503-222-1804
Wild Salmon Center
Source:Eurekalert

Page: 1 2 3 4

Related biology news :

1. Growing nitrous oxide levels explained
2. VIB-BGI Genomics Meeting highlights growing impact of large-scale genomics in life sciences
3. After 25 years, sustainability is a growing science thats here to stay
4. Environmental troubles growing in Mid-East Gulf region due to rapid coastal development
5. Trees on tundras border are growing faster in a hotter climate
6. Growing without cell division
7. Acinetobacter baumannii found growing in nearly half of infected patient rooms
8. Growing something out of nothing
9. New method of growing high-quality graphene promising for next-gen technology
10. Genencor promotes biobased economy to address challenges of fast-growing world population
11. Rapid evolution within single crop-growing season increases insect pest numbers
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:9/30/2014)... news release is available in German . ... in their behavioural response to risky situations such as ... for Ornithology now found in a long-term study on ... with both metabolic rate and ambient temperature. High metabolic ... behaviour, as in these scenarios birds were more likely ...
(Date:9/30/2014)... Ill. (September 30, 2014) People who suffer from ... do to control their asthma besides properly taking medications ... new article in the Annals of Allergy, Asthma ... College of Allergy, Asthma and Immunology (ACAAI), asthma sufferers ... their lifestyle. The woman described in the Annals article ...
(Date:9/29/2014)... confirms that the exposure to tar tended to be ... cigarettes. Similarly, exposure to nicotine tended to be ... of cigarette in several countries around the world. Previous ... chemicals in the smoke of these cigarettes are lower ... of chemicals in the smoke are not necessarily linked ...
Breaking Biology News(10 mins):Risky metabolism 2Asthma symptoms kicking up? Check your exposure to air pollution 2Slim cigarette smokers not exposed to more harmful chemicals 2
... FL. If you think you eat healthier at the Sunburst ... be wrong. You could be a victim of the "Health ... Consumer Research conference in Jacksonville, FL, showed that people eating ... 56% as many calories as they actually did. The ...
... direct evidence that taking up smoking results in epigenetic changes ... reported at the 35th Congress of the European Society for ... smoking and cancer has been established for decades, explained Dr ... Cancer Studies, Birmingham, who presented the results. Smoking is the ...
... lung cancer patients seem to live longer and experience delays ... cancer-associated molecule called MET is added to treatment with erlotinib, ... Dr David Spigel, Director of lung cancer research for the ... findings at the 35th Congress of the European Society for ...
Cached Biology News:Study reveals cancer-linked epigenetic effects of smoking 2New targeted therapy adds benefit to erlotinib in some patients with advanced lung cancer 2
(Date:9/30/2014)... YORK , Sept. 30, 2014 ... - 2014 Summary Global Markets Direct,s, ... - 2014, provides an overview of the Pacific ... This report provides comprehensive information on the ... LLC,s, complete with comparative analysis at various stages, ...
(Date:9/30/2014)... YORK , Sept. 30, 2014 ... and segments with highest potential revenues Do you ... updated report gives you revenue predictions for those ... For those therapies you find financial data, R&D ... analysis you get sales forecasts to 2024 at ...
(Date:9/30/2014)... September 30, 2014 Shimadzu Scientific ... an easy-to-use and highly precise tool for measuring ... considerable elongation. With 1000-mm maximum movement distance, the ... for a gauge length of 10 mm. In ... accuracy above 50-mm stroke and within +/- 100 ...
(Date:9/30/2014)... YORK , Sept. 30, 2014 ... to kill nematodes. Nematodes are microscopic parasitic roundworms, ... water, and inside other plants and animals. Nematicides ... volatility or other properties promoting migration through the ... more than 1,000 plant-parasitic nematodes. With more than ...
Breaking Biology Technology:Pacific Northwest Biotechnology, LLC - Product Pipeline Review - 2014 2Pacific Northwest Biotechnology, LLC - Product Pipeline Review - 2014 3Biosimilars and Follow-On Biologics: World Industry and Market Prospects 2014-2024 2Biosimilars and Follow-On Biologics: World Industry and Market Prospects 2014-2024 3Biosimilars and Follow-On Biologics: World Industry and Market Prospects 2014-2024 4Biosimilars and Follow-On Biologics: World Industry and Market Prospects 2014-2024 5Shimadzu’s New Long-Travel Extensometer Increases Precision for Soft Material Testing 2Nematicides Market by Types (Fumigants, Organophosphates, Carbamate and Bio-Nematicides), Applications (Agrochemicals, Industrial, and Others), and Geography (North America, Europe, Asia-Pacific & ROW) - Global Trends & Forecasts to 2019 2
... ... as the sample collection kit for MyCeliacID™ a saliva-based genetic test dedicated to celiac ... sample collection challenges inherent with traditional collection methods which are often too costly and ... Ottawa, ...
... , CANTON, Mass., Aug. 18 ... than 500 pieces of state-of-the-art R&D equipment that is no ... EquipNet as the exclusive seller and listed the premium lab ... online venue for pre-owned equipment. , , ...
... , , , , ... Inc., (NYSE: CRY ) an implantable biological medical device ... of the CryoPatch((R)) SG pulmonary human cardiac patch since FDA clearance. ... of Michigan C.S. Mott Children,s Hospital in Ann Arbor, MI by ...
Cached Biology Technology:DNA Genotek Sample Collection Kit Selected by Prometheus for MyCeliacID™ Genetic Test 2DNA Genotek Sample Collection Kit Selected by Prometheus for MyCeliacID™ Genetic Test 3Massive Inventory of Premium Lab & Analytical Equipment Now Available 2CryoLife Announces Implants of First FDA-Cleared SynerGraft(R) Processed Human Cardiac Patch Material 2CryoLife Announces Implants of First FDA-Cleared SynerGraft(R) Processed Human Cardiac Patch Material 3CryoLife Announces Implants of First FDA-Cleared SynerGraft(R) Processed Human Cardiac Patch Material 4