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

Researchers have long suspected that fertilizer runoff from big farms can trigger sudden explosions of marine algae capable of disrupting ocean ecosystems and even producing "dead zones" in the sea. Now a new study by Stanford University scientists presents the first direct evidence linking large-scale coastal farming to massive algal blooms in the sea.

Writing in the March 10 issue of the journal Nature, the authors conclude that some highly productive regions of the ocean are much more vulnerable to agricultural runoff than was previously assumed.

The study is based on satellite imagery of Mexico's Gulf of California, also known as the Sea of Cortez-a narrow, 700-mile-long stretch of the Pacific Ocean that separates the Mexican mainland from the Baja California Peninsula. The area is a hotspot of marine biodiversity and one of Mexico's most important commercial fishing centers.

"Biological productivity in most of the world's oceans is controlled by the supply of nutrients to the surface water," wrote the authors, who are all affiliated with Stanford's School of Earth Sciences. "The Gulf of California contains some of the highest nutrient concentrations in the oceans and sustains highly elevated rates of biological productivity."

In the gulf, wind-driven upwellings regularly bring nitrogen and other nutrients from the seafloor to the surface, stimulating the rapid reproduction and growth of microscopic algae called phytoplankton. These algal blooms are natural events that benefit life in the gulf by generating tons of phytoplankton-a major source of food for larger organisms.

But some phytoplankton species produce harmful blooms, known as red or brown tides, which release toxins in the water that can poison mollusks and fish. Excessively large blooms can also overwhelm a marine ecosystem by depleting oxygen in the water. Scientists suspect that many harmful blooms are artificially fueled by fertilizer runoff from farms, which
'"/>

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:4/2/2015)... -- According to preliminary estimates Fingerprint Cards, ... than 125 MSEK. This exceeds the guidance provided by ... for Q1 2015 would be in line with the ... The operating result for the first quarter is estimated ... will as previously communicated be published on May 21. ...
(Date:4/1/2015)... , Apr. 1, 2015  NXT-ID, Inc. (NASDAQ: ... company focused on the growing mobile commerce market, announces ... smart wallets is underway to early access pre-order customers. ... includes usage at retail outlets including Walmart, Target, AT&T, ... report Wocket was accepted at all outlets and very ...
(Date:3/31/2015)... March 31, 2015  Elephant Talk Communications Corp. (NYSE ... provider of Software Defined Network Architecture (ET Software DNA® ... revenue of approximately $20.4 million for the year ended ... million for the year ended December 31, 2013. ... Company had completed its multi-year transition away from its ...
Breaking Biology News(10 mins):Fingerprint Cards Revises Revenues for Q1 2015 2NXT-ID Reports Second Shipment of Wocket Smart Wallets Underway to Early Access Pre-order Customers and Provides User Feedback 2NXT-ID Reports Second Shipment of Wocket Smart Wallets Underway to Early Access Pre-order Customers and Provides User Feedback 3NXT-ID Reports Second Shipment of Wocket Smart Wallets Underway to Early Access Pre-order Customers and Provides User Feedback 4Elephant Talk Reports 2014 Fourth Quarter and Year End Financial Results 2Elephant Talk Reports 2014 Fourth Quarter and Year End Financial Results 3Elephant Talk Reports 2014 Fourth Quarter and Year End Financial Results 4Elephant Talk Reports 2014 Fourth Quarter and Year End Financial Results 5Elephant Talk Reports 2014 Fourth Quarter and Year End Financial Results 6
... Hackensack, NJ (June 29, 2011) Researchers at the John ... of social support to distress after stem cell transplants. Scott ... the John Theurer Cancer Center at Hackensack University Medical Center ... Labay from Mt. Sinai. The study was published in the ...
... CORPUS CHRISTI Just as corn and ... discovered multi-beneficial uses and applications, Texas AgriLife Research scientists ... "It,s a huge, untapped source of fuel, food, ... a crop physiologist at the Texas AgriLife Research and ...
... rebirth, but if it comes too early, it can threaten ... of Alberta study shows that climate change over the past ... and trees into earlier blooming times, making them more vulnerable ... of A PhD candidate Elisabeth Beaubien and her supervisor, professor ...
Cached Biology News:John Theurer Cancer Center BMT researchers highlight the importance of social support 2Microalgae could be Texas' next big cash crop 2Microalgae could be Texas' next big cash crop 3
(Date:4/27/2015)... 27, 2015 tru Shrimp™ Systems announced ... Texas A&M University for the exclusive worldwide rights to ... raceway systems. The license agreement for the patented technology, ... to countries such as China, Taiwan, France, Germany, Italy, ... “We have had inquires from all over the world ...
(Date:4/25/2015)... (PRWEB) April 25, 2015 Join us ... 29th: Analyzing Kinase Inhibitor Residence Times using the Transcreener® ... of inhibitor residence times is increasingly being incorporated into ... can result in improved efficacy, increased therapeutic window and ... determined using immobilized ligand methods such surface plasmon resonance, ...
(Date:4/24/2015)... McKinney, Texas (PRWEB) April 24, 2015 ... products for use in applications such as animal ... fat and oil reduction in wastewater treatment plants ... be an exhibitor at the National Restaurant Association’s ... 16-19. , Representatives of the company will ...
(Date:4/24/2015)... , April 24, 2015  Navitas Life Sciences is ... as Head of Clinical and Regulatory Services. Shalabh is a ... a co-founder and CEO of Kinapse, as well as a ... Logo - http://photos.prnewswire.com/prnh/20150423/201261LOGO ... Tizzard commented "I am delighted to welcome Shalabh into ...
Breaking Biology Technology:tru Shrimp™ Systems Acquires Global Patent for Tidal Basin™ Shrimp Production 2BellBrook Labs Webinar: Analyzing Kinase Inhibitor Residence Times using the Transcreener® ADP Assay 2DryLet to Showcase Bio-React at the National Restaurant Association’s NRA Show 2015 May 16-19, 2015 in Chicago, Illinois 2Shalabh Kumar Joins Navitas Life Sciences to Lead their Clinical and Regulatory Services Teams 2
... AUXL ) today announced that executive management will ... held June 4-7, 2012 at the Grand Hyatt in New ... is scheduled to present an overview of the Company and ... 4, 2012. A breakout session will be held following the ...
... PARSIPPANY, N.J., May 29, 2012  Watson Pharmaceuticals, Inc. (NYSE: ... company, announced today that Paul Bisaro, Watson,s President and ... of the Company,s business at the Goldman Sachs Global ... 8:00AM Pacific Time at the Terranea Resort in Rancho ...
... conditions such as multiple sclerosis and heart and liver ... and life sciences facilities opened yesterday by HRH, the ... unveil plaques this afternoon at the $85 million Scottish ... facility, Nine, in Edinburgh. The University of ...
Cached Biology Technology:Auxilium Pharmaceuticals, Inc. to Present at the Jefferies 2012 Global Healthcare Conference 2Auxilium Pharmaceuticals, Inc. to Present at the Jefferies 2012 Global Healthcare Conference 3Auxilium Pharmaceuticals, Inc. to Present at the Jefferies 2012 Global Healthcare Conference 4Watson to Present at Goldman Sachs Global Healthcare Conference 2012 2Scotland opens stem cell research center and bio-medical incubator 2
... Immunogen: Synthetic phosphopeptide corresponding to ... Ser603 residue of rat Synapsin ... synapsin I when phosphorylated at ... Rat (positive control: rat brain ...
EMBP (FL-222)...
... PhosphatidylEthanolamine-Binding Protein (PEBP) does not share ... inhibitors. PEBP is expressed in ... ovary, muscle, and stomach. One ... is exerting inhibitory activity against several ...
Anti-Rsk2/MAPKAP Kinase 1b, #0 SK2/MAPKAP K1 beta Smartpool&t 3T3 cell lysate Non-specific Control Pool , #D 1X Universal Buffer...
Biology Products: