Navigation Links
Leave it to salmon to leave no stone unturned

s of spawning sockeye for the last 50 years and previously measured nest sizes, Moore calculates that every summer the sockeye disturb at least 30 percent of the stream beds of two Alaskan streams he studied.

And in years when salmon populations are high, sockeye dig up entire stream beds more than once, being forced to superimpose new nests on top of old nests when the females run out of room.

Moore's work and the UW's Alaska Salmon Program is funded by the National Science Foundation, the Gordon and Betty Moore Foundation and Alaska salmon processors.

The rototilling effect probably happens wherever salmon are found in high densities, such as British Columbia, Alaska and even some individual streams in the Pacific Northwest, Moore says. Kennedy Creek, for example, is a small stream that flows into south Puget Sound and since 1968 has had chum salmon in high-enough densities that they have caused the amount of algae and stream insects to decline.

Scientists have long known of the habitat-changing activities such as dam building by beavers, but much of ecology has assumed that most other organisms simply react to the physical and chemical conditions around them. A handful of papers since 1999, including one by Moore in 2004, has focused on the disturbance created by spawning salmon and the ecosystem at large. In this most recent paper, Moore also outlines a conceptual framework he's developed that gives ecologists a way to formulate when the abundance of animals and their activities ?be they spawning salmon or some other kind of animal ?make them impossible to ignore as ecosystem engineers.

"One specific application to stream restoration in the Pacific Northwest, for example, deals with the practice of fertilizing salmon streams with the carcasses of dead salmon obtained from hatcheries," says Daniel Schindler, UW associate professor of aquatic and fishery sciences. "Although this does replace some of the nutrients that salmon
'"/>

Source:University of Washington


Page: 1 2 3

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. 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. Brain size may depend upon how neural cells are cleaved
10. Depression model leaves mice with molecular scar
11. Tumor cells that border normal tissue are told to leave
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Leave salmon leave stone unturned

(Date:11/18/2014)... 17, 2014 The Parenteral Drug Association (PDA) today ... will speak and at least seven more will participate in ... Omni Shoreham Hotel in Washington D.C. , ... have significant support from the regulatory agencies in ... in our effort to help advance the use of ...
(Date:11/12/2014)... , Nov. 12, 2014 Crossmatch™, a leading ... its U.are.U ® fingerprint readers have been deployed ... Central Mexico . The bakery chain ... eliminate payroll issues caused by employees clocking in for ... U.are.U fingerprint readers, Montparnasse relied on paper timecards and ...
(Date:11/7/2014)... Dr. Debra Auguste, associate professor, biomedical engineering, in ... College of New York, have identified a molecule ... of the most aggressive forms of breast cancer. ... high mortality rate owing to aggressive proliferation and ... However, Professor Auguste,s team, discovered the overexpression of ...
Breaking Biology News(10 mins):FDA's Janet Woodcock, EMA's Emer Cooke Headline PDA Quality Metrics Conference 2Montparnasse Pasteleria Achieves Time and Attendance Transparency with Crossmatch U.are.U Fingerprint Readers 2
... The Universities of Exeter and Bristol, in partnership ... one of the biggest challenges facing humanity: how can ... Security and Land Research Alliance launched at the House ... world population is on the brink of reaching seven ...
... Council (ERC) has awarded Modesto Orozco, researcher at the ... Grant within the category of Physical Sciences and Engineering, ... commonly accounts for 45% of the total budget dedicated ... the range of between 2 and 3 million Euros ...
... the research icebreaker Polarstern sets off on its 28th ... institutions in 14 countries will take part in the ... of topics: oceanography and marine chemistry, atmospheric research and ... the way to crustaceans, fish and whales. Moreover, the ...
Cached Biology News:UK scientists come together to help feed the 7 billion 2UK scientists come together to help feed the 7 billion 3UK scientists come together to help feed the 7 billion 4UK scientists come together to help feed the 7 billion 5An IRB Barcelona project on computational biology receives an ERC Advanced Grant 2RV Polarstern launches 28th Antarctic season 2
(Date:11/18/2014)... Array Architects is proud of a 30-year ... nation's hospitals and health systems. It is a niche ... careers to the advancement of both the healthcare and ... field, Laura Silvoy has been chosen to share her ... Conference. , Laura will present her Process Simulation ...
(Date:11/18/2014)... MENLO PARK, Calif. , Nov. 18, 2014 ... leading biotechnology company in the emerging field of ... clinical program, AST-OPC1 (oligodendrocyte progenitor cells) for complete ... as one of ten "Top Advanced Therapies Projects ... "We are delighted to receive this significant industry ...
(Date:11/18/2014)... , Nov. 18, 2014  Novira Therapeutics, Inc., a ... treatment of chronic hepatitis B virus (HBV) infection, today ... appointed to its Scientific Advisory Board (SAB).  ... SAB," said Christian S. Schade , Chief Executive ... development experience which will be invaluable to Novira as ...
(Date:11/17/2014)... , Nov. 17, 2014 Soligenix, ... late-stage biopharmaceutical company developing products that address unmet ... and biodefense, announced today the formation of a ... guidance to the Company as it advances the ... for the treatment of cutaneous T-cell lymphoma (CTCL), ...
Breaking Biology Technology:Array Healthcare Simulation Expert Slated to Speak at Winter Simulation Conference 2Asterias Biotherapeutics Named as a "Top Advanced Therapies Projects to Watch" and Will Present at the Therapeutic Area Partnerships Conference 2Asterias Biotherapeutics Named as a "Top Advanced Therapies Projects to Watch" and Will Present at the Therapeutic Area Partnerships Conference 3Novira Therapeutics Announces Appointment of Brian F. Daniels, M.D., to its Scientific Advisory Board 2Novira Therapeutics Announces Appointment of Brian F. Daniels, M.D., to its Scientific Advisory Board 3Soligenix Announces Formation of Cutaneous T-Cell Lymphoma Medical Advisory Board 2Soligenix Announces Formation of Cutaneous T-Cell Lymphoma Medical Advisory Board 3Soligenix Announces Formation of Cutaneous T-Cell Lymphoma Medical Advisory Board 4Soligenix Announces Formation of Cutaneous T-Cell Lymphoma Medical Advisory Board 5Soligenix Announces Formation of Cutaneous T-Cell Lymphoma Medical Advisory Board 6
... Aug. 14 /PRNewswire-FirstCall/ - Dragon Pharmaceutical Inc.,(TSX: DDD; OTCBB: DRUG; BBSE: ... 30, 2007. Highlights of the Second Quarter, 2007, - ... for the same period of 2006, ... quarter 2007;, - Gross profit and ...
... /PRNewswire-FirstCall/ - YM BioSciences Inc.,(AMEX: YMI ... company that identifies,develops and commercializes differentiated products ... (Wedel, Germany), its European partner,for the development ... recruited the 40th and final patient in ...
... for Role in Engineering Microbes to Produce Lower ... Recipients to be Honored at Technology Review,s Emerging ... Technologies Conference ... is,pleased to announce that Neil Renninger, Ph.D., co-founder and senior ...
Cached Biology Technology:Dragon Pharmaceutical Reports Growth in Sales and Profits during Second Quarter of 2007 2Dragon Pharmaceutical Reports Growth in Sales and Profits during Second Quarter of 2007 3ONCOSCIENCE AG, THE EUROPEAN PARTNER OF YM BIOSCIENCES, ANNOUNCES COMPLETION OF PATIENT ENROLLMENT IN PHASE III BRAIN CANCER TRIAL OF NIMOTUZUMAB 2ONCOSCIENCE AG, THE EUROPEAN PARTNER OF YM BIOSCIENCES, ANNOUNCES COMPLETION OF PATIENT ENROLLMENT IN PHASE III BRAIN CANCER TRIAL OF NIMOTUZUMAB 3ONCOSCIENCE AG, THE EUROPEAN PARTNER OF YM BIOSCIENCES, ANNOUNCES COMPLETION OF PATIENT ENROLLMENT IN PHASE III BRAIN CANCER TRIAL OF NIMOTUZUMAB 4Amyris Biotechnologies Co-Founder Neil Renninger Named to Technology Review's Prestigious TR35 List of Top Young Innovators 2Amyris Biotechnologies Co-Founder Neil Renninger Named to Technology Review's Prestigious TR35 List of Top Young Innovators 3
PTFE/red rubber septum silver aluminum seal ,11 mm seal diam. ...
... Enzymatic method stops PCR carry-over contamination, ... to degrade PCR products from previous ... acid templates, which improves amplification ,Optimized ... reagents and GeneAmp instrument systems , ...
... α-Amylase is a hydrolytic enzyme that ... mixture of glucose, maltose, maltotriose and,dextrins. ... fluids of the human,body are of ... are important enzymes for industry.4, The ...
... a-Amylase is an enzyme that ... mixture of maltose, maltotriose, and dextrins. ... of the human body is of,clinical ... states including,pancreatitis and diabetes; plant and ...
Biology Products: