Navigation Links
Oceans more vulnerable to agricultural runoff than previously thought, study finds

images taken over the gulf from 1998 through 2002. The results were dramatic.

"I looked at five years of satellite data," said Beman, lead author of the study. "There were roughly four irrigation events per year, and right after each one, you'd see a bloom appear within a matter of days."

Each bloom was enormous, he said, covering from 19 to 223 square miles (50 to 577 square kilometers) of the gulf and lasting several days. "Sometimes eddies actually pulled the plumes across the gulf, from the mainland side all the way to the Baja Peninsula," Beman added.

"Mike found that immediately following each one-week window in which much of the valley was irrigated, there was a response in the ocean off the coast of the Yaqui Valley," Matson explained.

"We were quite surprised," Arrigo added, noting that the Nature paper marks the first time that scientists have documented a "one-to-one correspondence between an irrigation event and a massive algal bloom."

Red tides and dead zones

According to the researchers, artificially induced algal blooms could have major impacts on recreational and commercial fishing, major industries in the gulf. Red tides, for example, can cause outbreaks of life-threatening diseases, such as paralytic shellfish poisoning, which can shut down mussel and clam harvesting for long periods of time.

Another concern is hypoxia, or oxygen depletion, caused by excessive algae growth. As the algal mass sinks, it is consumed by bacteria, which use up most of the oxygen in the water as they multiply. The result is an oxygen-depleted dead zone at the bottom of the sea where few creatures can survive. A massive dead zone appears every summer in the Gulf of Mexico off the coast of Louisiana and Texas. Scientists believe that agricultural runoff from the Mississippi River plays a pivotal role in creating this annual dead zone, which measured 8,500 square miles (22,000 square kilometers) in 2002-an area bigger
'"/>

Source:


Page: 1 2 3 4

Related biology news :

1. Oceans turning to acid from rise in CO2
2. Oceans are 70 percent shark free
3. MIT: Oceans are a major gene swap-meet for plankton
4. Rats infected as newborns grew up vulnerable to memory problems during an immune challenge
5. Newly identified mechanism helps explain why people of African descent are more vulnerable to TB
6. Report lists top 20 most-vulnerable African carnivores
7. Coral reefs are increasingly vulnerable to angry oceans
8. Producing bio-ethanol from agricultural waste a step closer
9. Mine runoff continues to provide clues to microbial diversification
10. Different microarray systems more alike than previously thought
11. Atmosphere may cleanse itself better than previously thought
Post Your Comments:
(Date:7/11/2014)... Tenn., July 11, 2014--Researchers at the Department of ... R&D 100 awards, presented by R&D Magazine in ... , "These awards recognize the tremendous value of ... Moniz. "Research and development at the National Labs ... challenges and pursue the scientific and technological innovations ...
(Date:7/11/2014)... a new professorship in tissue engineering to promote ... Engineering and the Marine Biological Laboratory, supported by ... Eugene Bell Foundation., The Eugene Bell Professorship in ... Molecular Engineering. That endowed chair holder also will ... Bell Center for Regenerative Biology and Tissue Engineering, ...
(Date:7/11/2014)... 10, 2014---A team of researchers from The Chinese University ... a gene of wild soybean linked to salt tolerance, ... in saline soil. This study published online in ... novel genomic information for crop improvement. , Soybean is ... and human selection, cultivated soybeans have less genetic diversities ...
Breaking Biology News(10 mins):ORNL wins eight R&D 100s 2ORNL wins eight R&D 100s 3ORNL wins eight R&D 100s 4New professorship in tissue engineering links molecular engineering, marine biology 2BGI reports a novel gene for salt tolerance found in wild soybean 2
... UK, July 20, 2011 - Recent clinical research ... [18F]Flutemetamol showed highly consistent image interpretation1 and showed ... ([C-11]PiB)) investigational imaging agent3. Flutemetamol is a GE ... currently in phase III development being studied for ...
... an arterial wall effectively protects the artery from developing ... published July 19 in the journal Molecular Therapy ... atherosclerosis, fatty lesions called plaques form on the inner ... restricting blood flow and causing chest pains and other ...
... A new Baylor University study has found that some bird ... some cases positively influenced, by widespread fire through their habitat. ... some bird species because of the habitat that is formed ... The study found that three specific bird species in ...
Cached Biology News:GE Healthcare studies report results of [18F]Flutemetamol research 2Gene therapy delivered once to blood vessel wall protects against atherosclerosis in rabbit studies 2Gene therapy delivered once to blood vessel wall protects against atherosclerosis in rabbit studies 3Gene therapy delivered once to blood vessel wall protects against atherosclerosis in rabbit studies 4Study finds some desert birds less affected by wildfires and climate change 2
(Date:7/10/2014)... 2014 Product and process impurities ... abundance and are often “lost in the noise,” ... Join presenters Dr. Rowel Tobias, Senior Scientist, Protein ... Head of Quality at Nanotherapeutics, Inc., to lear ... speed detection and quantitation while achieving the required ...
(Date:7/10/2014)... (PRWEB) July 10, 2014 Robert Harman, DVM, ... Medicine company, is proud to announce the relaunch of his ... with a new series called “ What are Stem Cells ... an honest and straightforward foundation in the basics of stem ... decision on the right type of treatment when considering regenerative ...
(Date:7/10/2014)... 10, 2014 On July 9 ... , presented Russia,s first national ... The Company is developing a unique project called ... develops a number of innovative drugs based on monoclonal ... ceremony took place at the International Exhibition "Innoprom 2014" ...
(Date:7/10/2014)... D.C., April 15, 2014 -- According to the ... to nuclear security comes from terrorists acquiring sufficient ... to construct a crude nuclear explosive device. The ... nuclear trafficking have involved gram-level quantities, which can ... , According to a new study appearing this ...
Breaking Biology Technology:Novel Ms Techniques Speed Detection of Biopharmaceutical Product and Process Impurities, New Webinar Hosted by Xtalks 2Robert Harman, DVM Talks About What Stem Cells are in His Latest Blog Series for Vet-Stem, Inc. 2Robert Harman, DVM Talks About What Stem Cells are in His Latest Blog Series for Vet-Stem, Inc. 3Dmitry Medvedev Presented BIOCAD the First National "Industry" Award 2Sensitive detection method may help impede illicit nuclear trafficking 2
... expands Dermagraft presence within government channels, ... 7 Advanced,BioHealing, Inc. (ABH) and Regenesis ... the promotion of Dermagraft(R) within the United,States ... the agreement,Regenesis will provide its specialized sales ...
... this Mother,s Day, STAMFORD, Conn., May 7 Every ... breast cancer(1). In New York City alone,more than 5,000 women ... the disease(2). While annual mammograms are recommended for,woman over the ... screening age do,not recognize how critical breast cancer screening is ...
... Inc., Elliott Sigal, M.D., Ph.D, from Bristol-Myers Squibb Company, Federico ... FDA, ... IBC Life Sciences announced,the keynote line up for the ... to take place August 4-7, 2008 in,Boston, MA. The keynote ...
Cached Biology Technology:Advanced BioHealing and Regenesis Biomedical Form Co-Promotion Alliance for Dermagraft(R) 2Advanced BioHealing and Regenesis Biomedical Form Co-Promotion Alliance for Dermagraft(R) 3Fujifilm and the National Breast Cancer Foundation Provide Free Mammograms as Part of Images of Health Campaign 2Fujifilm and the National Breast Cancer Foundation Provide Free Mammograms as Part of Images of Health Campaign 3Fujifilm and the National Breast Cancer Foundation Provide Free Mammograms as Part of Images of Health Campaign 4Innovative and Forward-Thinking Experts to Deliver Keynote Presentations at IBC's 13th Annual Drug Discovery & Development of Innovative Therapeutics World Congress 2
Alkali soluble casein is the recommended blot blocking reagent for use with the HisTag Monoclonal Antibody (Novagen) on Western blots....
... This reagent has been developed for ... the reduction of nonspecific background staining ... methods describe blocking peroxidase with hydrogen ... peroxide in combination with additional novel ...
Anti-Human Factor XI Purified (Polyclonal) (sheep IgG)...
Formulation: 10mM PBS/500 mM NaCl, 0.09% NaN3, pH 7.2...
Biology Products: