Navigation Links
Glacial watersheds may contribute to oceanic food web
Date:12/23/2009

PORTLAND, Ore. December 23, 2009. A study recently completed in the gulf coast of Alaska by federal and university researchers has found that as glacial ice disappears, the production and export of high- quality food from glacial watersheds to marine ecosystems may disappear too. This trend could have serious consequences for marine food webs.

The study, "Glaciers as a source of ancient and labile organic matter to the marine environment," was recently published in the December 24, 2009, issue of the journal Nature.

The research, which was conducted on 11 coastal watersheds in the Gulf of Alaska, has documented an interesting paradox with important implications for coastal ecosystems. "Glacial watersheds comprise 30 percent of the Tongass National Forest and supply about 35 to 40 percent of the stream discharge," says Rick Edwards, a coauthor on the study. "These watersheds export dissolved organic matter that is remarkably biologically active in contrast to that found in other rivers. Generally, scientists expect that organic matter decreases in its quality as a food source as it ages, becoming less and less active over time."

But the dissolved organic material discharged from the glacial watersheds in this study was almost 4,000 years old; yet surprisingly, more than 66 percent of it was rapidly metabolized by marine microbes into living biomass to support marine food webs, adds Edwards.

The study was conducted by Eran Hood, University of Alaska Southeast; Jason Fellman, University of Alaska Fairbanks; Robert Spencer and Peter Hernes, University of California Davis; Rick Edwards and David D'Amore, Pacific Northwest (PNW) Research Station, USDA Forest Service; and Durelle Scott, Virginia Tech.

Edwards and D'Amore partnered with their university colleagues to characterize the dominant types of watersheds and variables that control the volume and chemistry of water flowing into the gulf. The study was led by Ho
'/>"/>

Contact: Sherri Richardson Dodge
srichardsondodge@fs.fed.us
503-808-2137
USDA Forest Service, Pacific Northwest Research Station
Source:Eurekalert

Page: 1 2

Related biology news :

1. Searching for an interglacial on Greenland
2. Study: Did early climate impact divert a new glacial age?
3. A warming climate can support glacial ice
4. Study of agricultural watersheds and carbon losses
5. Study explores how life experiences contribute to the biological changes of Alzheimers
6. Scientists discover new genetic variation that contributes to diabetes
7. Cool new tools let public contribute to massive interactive online biodiversity encyclopedia
8. Hormone levels contribute to stress resilience
9. Work in mice will contribute to the study of hereditary diseases that lead to blindness
10. Temporary infidelity may contribute to the stability of ancient relationships
11. IFAR contributes to study that finds genes that influence the start of menstruation
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:3/11/2015)... 11, 2015   The Sync Project™ ... scientifically measure and harness music to improve health. ... and objective measurements of physiology, enabling the study ... in large populations. It is designed for medical ... perform rigorous studies and accelerate the discovery of ...
(Date:3/5/2015)... In Brazil , cloud computing is fast ... and 42 percent planning to invest in them by the ... the companies will be investing in these solutions for the ... the region are currently opting for the private cloud model, ... attention in the coming years. This trend is in line ...
(Date:3/2/2015)... --  Neurotechnology , a provider of high-precision biometric, robotics ... Development Kit (SDK). The SentiGaze algorithm enables designers ... to track eye movements and generate heatmaps based on ... be used for applications such as analysis of websites ... can also be used to develop interfaces for a ...
Breaking Biology News(10 mins):Introducing The Sync Project, a Global Collaboration Harnessing the Scientific Potential of Music for Health 2Introducing The Sync Project, a Global Collaboration Harnessing the Scientific Potential of Music for Health 3Two of Every Three Brazilian Companies will have Invested in Cloud by 2015, Finds Frost & Sullivan 2Two of Every Three Brazilian Companies will have Invested in Cloud by 2015, Finds Frost & Sullivan 3Two of Every Three Brazilian Companies will have Invested in Cloud by 2015, Finds Frost & Sullivan 4Neurotechnology Releases SentiGaze SDK for Eye Movement Tracking Using Ordinary Webcams 2Neurotechnology Releases SentiGaze SDK for Eye Movement Tracking Using Ordinary Webcams 3
... that examines the number of engineering graduates coming out ... of how prepared each state is for meeting the ... Greg Schuckman, Assistant Vice President of University Relations and ... University of Central Florida, authored the study after revisiting ...
... of the skull, is estimated to affect one out of ... used two procedures to correct the problems. One procedure was ... the scalp of the infant and reshape the skull by ... a small incision near the point of the fused skull ...
... are in trouble, primarily because the powerful muscles that ... heel: They,re tasty. Prized by sushi lovers for ... ,price they command-one 607-pound fish fetched over $90 per ... of bluefins have seen their population plummet in the ...
Cached Biology News:Where will we find the next generation of engineers? 2Craniosynostosis minimally invasive surgery holds more promise than old procedure 2To save or savor? It's decision time for Atlantic bluefin tuna 2To save or savor? It's decision time for Atlantic bluefin tuna 3To save or savor? It's decision time for Atlantic bluefin tuna 4To save or savor? It's decision time for Atlantic bluefin tuna 5To save or savor? It's decision time for Atlantic bluefin tuna 6To save or savor? It's decision time for Atlantic bluefin tuna 7
(Date:3/27/2015)... YORK , March 27, 2015   ... in liquid photopurification, announced today that the Company ... for the continued trading of SurePure ("SURP") securities ... venture marketplace for entrepreneurial and development stage companies. ... Group introduced standards and eligibility requirements designed to ...
(Date:3/27/2015)... SHANGHAI , March 27, 2015 ... a leading open-access R&D capability and technology platform ... device industries, announced today that an Investigational New ... monoclonal antibody for rheumatoid arthritis has been accepted ... Administration (CFDA).  In September 2012, ...
(Date:3/26/2015)... Bioscience, Inc. (NASDAQ: ROKA ), a molecular ... for the detection of foodborne pathogens, today reported ... full year ended December 31, 2014. ... ended December 31, 2014 was $1.4 million compared ... and $1.5 million for the third quarter of ...
(Date:3/26/2015)... The Market Element LLC, a leading inbound marketing ... Gig LLC to provide website design, development, and creative ... alliance with Designing Gig represents a pivotal moment for ... end-to-end, digital solution for our clients, which now includes ... president of The Market Element. “For small and mid-sized ...
Breaking Biology Technology:SurePure Completes Verification and Approved for Trading on the OTCQB Marketplace 2Investigational New Drug Application for WuXi MedImmune's Monoclonal Antibody Accepted for Review by CFDA 2Investigational New Drug Application for WuXi MedImmune's Monoclonal Antibody Accepted for Review by CFDA 3Roka Bioscience Reports Fourth Quarter and Full Year 2014 Financial Results 2Roka Bioscience Reports Fourth Quarter and Full Year 2014 Financial Results 3Roka Bioscience Reports Fourth Quarter and Full Year 2014 Financial Results 4Roka Bioscience Reports Fourth Quarter and Full Year 2014 Financial Results 5Roka Bioscience Reports Fourth Quarter and Full Year 2014 Financial Results 6Roka Bioscience Reports Fourth Quarter and Full Year 2014 Financial Results 7The Market Element LLC and Designing Gig LLC Form Strategic Alliance 2
... by the burgeoning demand from drug discovery research and high throughput ... to amount to $5.0 billion by 2015. A key driving force ... thousands of compounds. , ... San Jose, CA (PRWEB) ...
... FRANCISCO, Calif., Oct. 31 Rigel,Pharmaceuticals, Inc. (Nasdaq: ... team will host a conference call with,simultaneous webcast to ... a.m. PST/8:30 a.m. EST., Conference Call and Webcast ... 800-265-0241 (domestic) or,617-847-8704 (international) 10 minutes prior to the ...
... Options for Patients with Aortic ... ... announced,today that its Division of Vascular Surgery was the first to ... the treatment of abdominal aortic aneurysms (AAA). The procedure was,performed at ...
Cached Biology Technology:Microplate Instrumentation & Supplies Market to Exceed $5.0 Billion by 2015, According to New Report by Global Industry Analysts, Inc 2Microplate Instrumentation & Supplies Market to Exceed $5.0 Billion by 2015, According to New Report by Global Industry Analysts, Inc 3Rigel to Host Update Conference Call 2Arizona Heart Institute First to Implant Powerlink XL in Phoenix, Arizona Since FDA Approval 2Arizona Heart Institute First to Implant Powerlink XL in Phoenix, Arizona Since FDA Approval 3
TP-1 (NDOG1)...
Mouse monoclonal [6G11] to Cytohesin 1 + 2 ( Abpromise for all tested applications)....
HP 1 alpha Immunogen: Synthetic peptide between amino acids 1-100 of the human HP 1 alpha protein. Storage: -20 C, Avoid Freeze/Thaw Cycles...
... KLH-conjugated, synthetic peptide corresponding to ... mouse p19ARF. The epitope ... 62-75. Clone 5-C3-1. Quality ... immunoblot. Stability ...
Biology Products: