Navigation Links
Fish have enormous nutrient impacts on marine ecosystems, study finds
Date:12/11/2012

Athens, Ga. Fish play a far more important role as contributors of nutrients to marine ecosystems than previously thought, according to researchers at the University of Georgia and Florida International University. In a pair of papers in the journal Ecology, they show that fish contribute more nutrients to their local ecosystems than any other sourceenough to cause changes in the growth rates of the organisms at the base of the food web.

Jacob Allgeier, a doctoral student in the UGA Odum School of Ecology, and Craig Layman, associate professor at Florida International University, led the study, which took place in the waters of a large bay on Abaco Island, Bahamas.

Most tropical coastal ecosystems are nutrient limited, meaning that the system's primary food sources such as algae and seagrass need to have enough nitrogen and phosphorusin the right proportionsto grow and thrive.

"We've been thinking about the role of fish and the nutrients they're excreting in these ecosystems for a while now," Allgeier said. In marine food webs, fish are usually thought of as predators, he explained, consuming microorganisms, plants and smaller animals. But fish have another important, although often overlooked, role in the system. Through excretion, they recycle the nutrients they take in, providing the fertilizer sea grass and algae need to grow.

To determine the impact of nutrients from fish, the team needed to compare sites with fish populations of different sizes. Knowing that fish tend to congregate around reefsthe larger the reef, the more fish it attractsthey built a series of artificial reefs of two sizes, large and small, and selected a number of control sites with no reefs at all.

Over the course of two years they surveyed each site periodically to record the number, size and species of fish present. Allgeier created models to estimate the supply of nutrients from all species of fish at the various sites.


'/>"/>
Contact: Jacob Allgeier
jeallg@uga.edu
University of Georgia
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. Lack of nutrients and metabolic syndrome linked to different subtypes of depression
2. Nutrient in eggs and meat may influence gene expression from infancy to adulthood
3. Increased sediment and nutrients delivered to bay as Susquehanna reservoirs near sediment capacity
4. U OF A expert pinpoints nutrient behind fresh water algae blooms
5. Study: No-fat, low-fat dressings dont get most nutrients out of salads
6. Prenatal micronutrient, food supplementation intervention in Bangladesh decreases child death rate
7. Obtaining key nutrients from canned foods can save consumers money
8. Nutrient and toxin all at once: How plants absorb the perfect quantity of minerals
9. Consumers need simple, concise messages about benefits of phytonutrients
10. Research on flavanols and procyanidins provides new insights into how these phytonutrients may positively impact human health
11. Researchers investigate impacts of climate change on rare tropical plants
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Fish have enormous nutrient impacts on marine ecosystems, study finds
(Date:4/18/2014)... NC Seeds that sprout as soon as they,re planted ... need to be more careful. In the wild, a plant ... day would risk disaster. More than just an insurance policy ... that seed dormancy has long-term advantages too: Plants whose ... rise to more species, finds in a team of researchers ...
(Date:4/17/2014)... under clinical trials to treat tuberculosis could be the ... against various bacteria, fungal infections and parasites, yet evade ... chemists and collaborators. , Led by U. of I. ... ways the drug SQ109 attacks the tuberculosis bacterium, how ... from yeast to malaria and how targeting multiple ...
(Date:4/17/2014)... NJ. April 16, 2014. Kessler Foundation has been ... million from the Department of Defense Spinal Cord ... principal investigator for the randomized, double-blinded, controlled, multi-site ... bone and muscle strength after spinal cord injury. ... & Engineering Research at Kessler Foundation. Two additional ...
Breaking Biology News(10 mins):Plants with dormant seeds give rise to more species 2Multitarget TB drug could treat other diseases, evade resistance 2Kessler Foundation awarded Department of Defense grant for spinal cord injury research 2
... from India,s first genetically modified crop may have been overemphasized, ... expense of sustainable farm management, says a new study by ... by Glenn Stone, PhD, professor of anthropology in Arts & ... World Development . In his paper, Stone compares village ...
... most common mosquito-borne viral disease in the world, has ... in countries such as Argentina, Chile and the continental ... dengue (pronounced DENgee) in the Western Hemisphere, according to ... in the American Journal of Tropical Medicine and ...
... have developed a method of discovering new drugs for ... of biological molecules may predict their effectiveness as medicines. ... drugs that were shown to be effective for fighting ... "The power of this is that it,s a ...
Cached Biology News:New findings in India's Bt cotton controversy: Good for the field, bad for the farm? 2Brandeis study shows economic impact of dengue virus in Americas 2Brandeis study shows economic impact of dengue virus in Americas 3Brandeis study shows economic impact of dengue virus in Americas 4Math may help calculate way to find new drugs for HIV and other diseases 2Math may help calculate way to find new drugs for HIV and other diseases 3
(Date:1/15/2014)... Westlake Village, Calif. (PRWEB) January 15, 2014 ... cancer treatment and management through the genomic analysis of ... will offer Therapy Finder™, a web-based cancer decision support ... a reporting option with Cynvenio’s ClearID™ genomic test, Therapy ...
(Date:1/15/2014)... 15, 2014 ­ RedBrick Health , a fast-growing ... today announces that EmblemHealth , the ... is now providing the RedBrick Compass health assessment, combined ... all of its members. EmblemHealth is among the first ...
(Date:1/15/2014)... January 15, 2014 A study has been ... the Formula 1 track could help to tackle the problem ... (MAT), Stowhealth (a GP surgery based in Stowmarket) and academics ... Simplyhealth. Telemetry technology, which is inspired by equipment ...
(Date:1/15/2014)... VA (PRWEB) January 15, 2014 Two ... have continued their sponsorship of an annual competition for ... in, and access to, innovative STEM study. The competition ... TEAMS: Tests of Engineering Aptitude, Mathematics, and Sciences ...
Breaking Biology Technology:Cynvenio Offers New Breast Cancer Therapy Finder Application for its ClearID Breast Cancer Genomic Test 2Cynvenio Offers New Breast Cancer Therapy Finder Application for its ClearID Breast Cancer Genomic Test 3EmblemHealth Selects RedBrick Health to Power its Next-Generation Health Engagement and Behavior Change System 2EmblemHealth Selects RedBrick Health to Power its Next-Generation Health Engagement and Behavior Change System 3Formula 1 Technology Tackles Obesity in Unique Healthcare Partnership 2Formula 1 Technology Tackles Obesity in Unique Healthcare Partnership 3Formula 1 Technology Tackles Obesity in Unique Healthcare Partnership 4Technology Student Association Partners with Leaders in STEM Education Advocacy for Annual Competition 2Technology Student Association Partners with Leaders in STEM Education Advocacy for Annual Competition 3Technology Student Association Partners with Leaders in STEM Education Advocacy for Annual Competition 4Technology Student Association Partners with Leaders in STEM Education Advocacy for Annual Competition 5
... agreed to buy La Crosse-based data quality firm Firstlogic ... expected to close in the second quarter. , ,Firstlogic is ... consulting to help businesses make sure their data is as ... worldwide in places such as call centers, web sites, customer ...
... Associated Bank of Green Bay have joined a new ... companies. , , Tonka Bay Equity Partners of ... of banks from around the country and some individual ... in manufacturing and business services. , ,"They're interested in ...
... He may have just graduated last year, but ... on the heels of his brainstorming service that sells the ... , , Innovation Trip , a seven-day tour, will take ... Stanford campuses with time to sample local culture. Participants are ...
Cached Biology Technology:Brainstorming entrepreneur creates new innovation business 2Brainstorming entrepreneur creates new innovation business 3
DryStrip aligners, 4. Category: Electrophoresis Systems & Standards & Reagents, IEF & SDS-PAGE & 2-D Electrophoresis, Multiphor II Kits & Components and Accessories....
Newborn Calf Serum US Origin...
Immunogen: Peptide corresponding to amino acid residues from the N-terminal region of human thyroid hormone receptor, alpha1/alpha2-isotype. Storage: -20 C, Avoid Freeze/Thaw Cycles...
...
Biology Products: