Navigation Links
Salmon smolt survival similar in Columbia and Fraser rivers
Date:10/28/2008

n the impacts of stress on fish, last year received the Meritorious Presidential Rank Award at a White House ceremony for his contributions to fisheries science. His work during the past 36 years has centered on the causes of stress in juvenile and adult salmon and steelhead, and the impacts that stress can have.

During the past dozen or so years, OSU scientists have been using telemetry to study survival rates of juvenile salmon below Bonneville Dam. They discovered a high rate of mortality in the estuaries, which led to the surprising discovery of the impact of predation from colonies of terns. In 2000, OSU introduced the use of a new tool acoustic telemetry for studying salmon on the West Coast. Acoustic telemetry allows the signals emitted from tagged fish to be picked up by underwater hydrophones in salt water, as well as fresh.

A team led by David Welch, a British Columbia scientist and lead author of the PLoS paper, subsequently established a series of listening stations along the continental shelf, and also began using the same acoustic technology used by OSU researchers to study the survival of smolts in the Fraser River.

Comparing smolt survival from one river system to another is complex, because there can be a huge difference in the overall "quality" of smolts even before they begin their long journey to the Pacific Ocean, according to Shaun Clements, a biologist with the Oregon Department of Fish and Wildlife and co-author of the study, who conducted some of the tagging studies.

Clements, a former senior research associate at OSU, said the health and fitness of the smolts that are captured at the Columbia River's Lower Granite dam varies significantly.

"One day, we'd get a group of fish that were released from one hatchery and they'd be relatively weak, then a few days later we'd get a bunch of fish from a different hatchery and they would be robust," Clements said. "Hatcheries weren't the only variable s
'/>"/>

Contact: Carl Schreck
carl.schreck@oregonstate.edu
541-737-1961
Oregon State University
Source:Eurekalert

Page: 1 2 3 4

Related biology news :

1. Scientists achieve first tracking of salmon from headwaters in Rockies through Pacific to Alaska
2. Research challenges conventional notions about salmon survival
3. Similar survival rates for Pacific salmon in Fraser, Columbia Rivers raises new questions
4. Wolves would rather eat salmon
5. ETH Zurich study on salmonella self-destruction
6. Signals from the Atlantic salmon highway
7. Sesame seed extract and konjac gum may help ward off Salmonella and E. coli
8. From foe to friend: Researchers use salmonella as a way to administer vaccines in the body
9. Fruit flies show how salmonella escapes immune defenses
10. Hatchery fish outnumber wild chinook salmon in troubled fall run
11. Unfavorable ocean conditions likely cause of low 2007 salmon returns along West Coast
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/17/2014)... expression is the process whereby the genetic information ... such as proteins, which have numerous different functions ... an important intermediary during gene expression, by relating ... mechanisms involved in manufacturing proteins. , By ... molecules present in an organism at a given ...
(Date:4/17/2014)... have uncovered a new way the immune system may ... efforts to use immune cells to treat illness. , ... the immunological equivalent of "neighborhood police" specialized squads ... organ, instead of an entire city, the body. , ... Louis have shown that the liver, skin and uterus ...
(Date:4/17/2014)... ideas about domestication derive from Charles Darwin, whose ... animal-breeding practices during the 19th century, a period ... , It is from Darwin that we inherit ... animals from wild species and total human control ... management in this industrial setting has been applied ...
Breaking Biology News(10 mins):Rapid and accurate mRNA detection in plant tissues 2Some immune cells defend only 1 organ 2The story of animal domestication retold 2The story of animal domestication retold 3The story of animal domestication retold 4
... The Role of a TB Vaccine PDP, An Exhibitor,s Workshop ... 20, 1:00-2:00 PM VENUE: 2011 AAAS ANNUAL MEETING, ... will provide an overview of the state of the global ... of non-profit product development partnerships such as Aeras; and ways ...
... human cell and a bacterial cell met at a speed-dating ... much less genetic material. In more scientific terms, a direct ... bacteria. Until now. Northwestern Medicine researchers have discovered the ... genome in this case, Neisseria gonorrhoeae , the ...
... nerve cells. Each of these cells needs to connect to ... form a fully functional organism. Yet how does a nerve ... contact? Scientists of the Max Planck Institute of Neurobiology in ... they,ve reached their target area in the fly brain thanks ...
Cached Biology News:Gonorrhea acquires a piece of human DNA 2Partnership of genes affects the brain's development 2
(Date:1/15/2014)... (PRWEB) January 15, 2014 Cynvenio, a ... management through the genomic analysis of tumor cells in ... Finder™, a web-based cancer decision support application powered by ... with Cynvenio’s ClearID™ genomic test, Therapy Finder will provide ...
(Date:1/15/2014)... January 15, 2014 This webinar will ... and clinical safety assessment in biosimilars. , Regulatory frameworks ... biosimilar drug development, however the complex nature of biopharmaceuticals ... safety and efficacy extremely challenging. Based on the specific ...
(Date:1/15/2014)... VA (PRWEB) January 15, 2014 Two ... have continued their sponsorship of an annual competition for ... in, and access to, innovative STEM study. The competition ... TEAMS: Tests of Engineering Aptitude, Mathematics, and Sciences ...
(Date:1/15/2014)... Scottsdale, Arizona (PRWEB) January 15, 2014 ... growth for Scottsdale’s Brain State Technologies®. They saw continued ... University Medical Center who were awarded a $1 million ... papers published in “Brain and Behavior” a peer reviewed ...
Breaking Biology Technology:Cynvenio Offers New Breast Cancer Therapy Finder Application for its ClearID Breast Cancer Genomic Test 2Cynvenio Offers New Breast Cancer Therapy Finder Application for its ClearID Breast Cancer Genomic Test 3Xtalks Life Sciences Webinar Examines Safety Assessment of Biosimilars 2Technology Student Association Partners with Leaders in STEM Education Advocacy for Annual Competition 2Technology Student Association Partners with Leaders in STEM Education Advocacy for Annual Competition 3Technology Student Association Partners with Leaders in STEM Education Advocacy for Annual Competition 4Technology Student Association Partners with Leaders in STEM Education Advocacy for Annual Competition 5Dynamic Innovative Technology Showcased at Scottsdale Company’s Open House 2Dynamic Innovative Technology Showcased at Scottsdale Company’s Open House 3
... May 9, 2011 Rhythm announced today results demonstrating ... effective in restoring normal gastric function in animal models ... effect. The results were the subject of an oral ... Hospital, Harvard Medical School) titled "RM-131: A Potent Gastroprokinetic ...
... SAN DIEGO, May 9, 2011 OncoSec Medical ... innovative medical approaches to treat solid tumor cancers ... therapy company,s tumor-destroying, tissue-sparing drug/device technology was profiled ... the high-tech medical technology industry that is relied ...
... May 8, 2011 Trimega Laboratories is pleased ... Business Awards, sponsored by HSBC, to represent the United Kingdom ... competition to be selected as one of 25 Country Representatives ... The UKTI Award for Innovation, in recognition of Trimega,s pioneering ...
Cached Biology Technology:Rhythm's RM-131 Restores GI Function as a Potent Ghrelin Prokinetic 2OncoSec Medical Featured in Medical Device Daily 2Trimega Laboratories Honoured to Represent UK at the European Business Awards 2Trimega Laboratories Honoured to Represent UK at the European Business Awards 3
karyopherin alpha2 (2G7)...
Request Info...
Highly sensive assay for detecting apoptosis in living cells. See detailed descriptions above in K250-25....
... Buffer Set are convenient methods for the ... simple and highly efficient DNA transformation. The ... heat shocking and related procedures. Instead, Fast-Track ... DNA to Z-Competent cells and incubating on ...
Biology Products: