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:7/8/2015)... 8, 2015 Summary Pancreatic cancer is ... most fatal, with a mortality rate of 10.9 deaths ... pancreatic cancer patients has highlighted a significant need for ... being met by the current market. A highly ... with varying molecule types and mechanisms of action, which ...
(Date:7/7/2015)... 2015 Research and ... of the "Capacitive Fingerprint Sensors Patent Landscape" ... this date, fingerprint sensing technology is the most ... are well developed. This patent landscape focuses on ... The domain of capacitive fingerprint sensors is closely ...
(Date:7/2/2015)... Research and Markets( http://www.researchandmarkets.com/research/jvft55/next_generation ) has ... Market by Application, Technology, Function & Geography - Global ... The next generation biometrics market is expected to ... 17.9% between 2015 and 2020 Travel & ... Safran SA ( France ), NEC ...
Breaking Biology News(10 mins):Frontier Pharma: Pancreatic Cancer - Identifying and Commercializing First-in-Class Innovation 2Frontier Pharma: Pancreatic Cancer - Identifying and Commercializing First-in-Class Innovation 3Worldwide Capacitive Fingerprint Sensors Patent Landscape Market Report 2015-2020 - Main IP Holders include Seiko Epson, AuthenTec, Sony and STMicroelectronics 2Next Generation Biometrics Market 2015 - Global Forecast to 2020 with Safran, NEC, 3M Cogent, Fujitsu & Suprema Dominating the $24 Billion Market 2Next Generation Biometrics Market 2015 - Global Forecast to 2020 with Safran, NEC, 3M Cogent, Fujitsu & Suprema Dominating the $24 Billion Market 3
... cellsas indicated by a molecular imaging techniquecould tell researchers ... headaches and psychosis in schizophrenic patients, occur and provide ... two studies published in the November issue of the ... positron emission tomography (PET)a noninvasive molecular imaging techniqueresearchers were ...
... When 100 m sprinters launches themselves from the starting blocks, ... few strides. Acceleration through the first few strides is the ... by an American football star, who sprints in his position ... his technique and training regime, Piazza decided to focus on ...
... have confirmed that the largest bat in Europe, ... the Late Pleistocene (between 120,000 and 10,000 years ago). ... at Abrc Roman (Barcelona) prove that this bat had ... than it does today, having declined due to the ...
Cached Biology News:Unlocking mysteries of the brain with PET 2Short heels make elite sprinters super speedy 2The largest bat in Europe inhabited northeastern Spain more than 10,000 years ago 2
(Date:7/28/2015)... July 28, 2015 Deerfield Management Company, L.P. ... Fund, L.P., which will invest in groundbreaking advancements in ... diseases, cancer, and orphan diseases. The venture capital fund ... therapeutics are developed and improve the way healthcare is ... the largest healthcare-focused venture funds in the sector, will ...
(Date:7/28/2015)... , July 28, 2015  Moerae Matrix Inc. ... 1 clinical trial with MMI-0100, a first-in-class inhibitor ... developed for pulmonary disorders characterized by inflammation and ... United Kingdom , is a double-blind, two-way ... the safety and tolerability of MMI-0100 when given ...
(Date:7/28/2015)... 28, 2015 /PRNewswire/ - Aeterna Zentaris Inc. (NASDAQ: ... has granted to German life sciences entrepreneurs with ... commercialization of biotechnology (collectively, the "Optionee"), an option ... tumor vaccine technology (the "Technology"), including AEZS-120, the ... is ready to enter a Phase 1 clinical ...
(Date:7/28/2015)... 2015  Faced with increasing challenges such as ... than symptomatic, the global healthcare industry today is ... of curing or significantly changing the course of ... towards regenerative medicine as a viable alternative. ... human health with the potential to resolve unmet ...
Breaking Biology Technology:Deerfield Launches $550 Million Healthcare Venture-Capital Fund 2Deerfield Launches $550 Million Healthcare Venture-Capital Fund 3Moerae Initiates Lipopolysaccharide (LPS) Challenge Study of Inhaled MMI-0100 for Pulmonary Disease Following Encouraging Safety and Tolerability Observed in Single Ascending Dose Phase 1 Study 2Aeterna Zentaris Grants Option to Develop and Commercialize Oral Allogenic Cancer Vaccine Technology 2Aeterna Zentaris Grants Option to Develop and Commercialize Oral Allogenic Cancer Vaccine Technology 3Stem Cell Therapy to Redefine Regenerative Medicine, says Frost & Sullivan 2Stem Cell Therapy to Redefine Regenerative Medicine, says Frost & Sullivan 3Stem Cell Therapy to Redefine Regenerative Medicine, says Frost & Sullivan 4Stem Cell Therapy to Redefine Regenerative Medicine, says Frost & Sullivan 5
... Sept. 22, 2008 -- Chemists at Rice University have ... -- tiny, wand-like nanoparticles that are being studied in ... diagnosing disease and improving electronic viewscreens. , "The content ... methods is only about 20 percent," said lead researcher ...
... 22 For,his lifetime commitment in the field of ... exposures on the developing fetus and for,his leadership in ... PhD, will be honored as the recipient of the ... Health Care by Nemours,one of the nation,s largest children,s ...
... 22 /PRNewswire/ - ACAMP Alberta Centre for Advanced,MNT ... the,appointment of Dr. Kevin Yallup as Chief Technology ... the product development effort within ACAMP to,build a ... assembly of,micro- and nano-scale technology devices, turning them ...
Cached Biology Technology:Purifying nanorods: Big success with tiny cleanup 2Robert L. Brent, MD, PhD, Honored with 2008 Alfred I. duPont Award for Excellence in Children's Health Care 2Chief Technology Officer Joins ACAMP 2
... FDSS6000 System is an imaging based ... development and high throughput screening which ... modalities., The Hamamatsu light sources and ... companys decades-long experience in photon detection ...
... reagents and supplies, for 10 chips, ... to perform standard-sensitivity RNA analysis (nanogram ... Experion automated electrophoresis system. Supplied are ... RNA StdSens stain, 20 microliters RNA ...
... 3-(3,5-Dibromo-4-hydroxy-benzoyl)-2-ethyl-benzofuran-6-sulfonicacid-(4-(thiazol-2-ylsulfamyl)-phenyl)-amide White solid. PROTECT FROM ... cell-permeable sulfanamido-benzbromarone compound that acts as ... inhibitor of PTP1B (IC 50 ... for PTP1B 403 and PTP1B ...
Anti-NCAPD3 Monoclonal AntibodyOther Sub-Family: not assigned-Other Applications: Immunoprecipitation, Western Blot...
Biology Products: