Navigation Links
Shrimp trawling may boost mercury in red snapper, study suggests
Date:11/26/2008

c increase in mercury levels of fish in areas that are trawled, but that's not surprising given the very small size of the fish we're sampling," says Chumchal. "Still, when you consider the ability of mercury to accumulate in ever-increasing levels as you move up the food chain, and the intense fishing effort throughout the northern shelf of the Gulf of Mexico, it's definitely an issue worth watching."

Mercury pollution in the ocean can be tied to human activities, such as coal burning and other industrial emissions. Mercury discharged into the air eventually returns to the earth's surface with rain or snow, either falling directly into the ocean or making its way there from land via groundwater, streams and rivers. Once deposited in ocean sediments, mercury is converted by sulfate-reducing bacteria into methyl mercury, a known nerve toxin that can accumulate in the tissues of marine animals as they consume smaller fish and microorganisms.

Methyl mercury is dangerous to everyone, but it can be especially harmful to the developing nervous systems of fetuses, young children and animals. For that reason, both the Environmental Protection Agency and the Food and Drug Administration have cautioned pregnant women to limit the consumption of certain types of fish due to concerns about mercury contamination.

"Most people don't eat enough fish with elevated mercury concentrations to put themselves at risk," Chumchal says. "It typically isn't a problem for adults."

As part of a larger LSU-led study investigating potential impacts of shrimp trawling on the continental shelf, Chumchal and colleagues studied mercury levels in juvenile red snapper less than 250 millimeters in total length, looking for connections between mercury contamination and factors such as fish size, habitat type and the prevalence of shrimp trawling in the area.

Specifically, they compared fish taken from heavily trawled sand, shell, and natural reef habita
'/>"/>

Contact: Matthew Chumchal
m.m.chumchal@tcu.edu
817-257-6440
Dick Jones Communications
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Global trade in tiger shrimp threatens environment
2. Mantis shrimp vision reveals new way that animals can see
3. Shrimps see beyond the rainbow
4. Bottom trawling impacts, clearly visible from space
5. Green tea boosts production of detox enzymes, rendering cancerous chemicals harmless
6. Rutgers high school outreach gets $3 million boost from NSF
7. Breast cancer research and inkjet tissue printing get NSF boost
8. Breastfeeding boost IQ in infants with helpful genetic variant
9. Earlier bites by uninfected mosquitoes boost West Nile deaths in lab mice
10. IdentiPHI Opens Paris Office to Boost European Sales and Support
11. New treatment boosts bone healing and regrowth
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/17/2014)... IPCC meeting painted a stark warning on the possible ... a greenhouse effect 32 times that of carbon dioxide. ... humic substances act as fully regenerable electron acceptors which ... in wetlands instead of being released to the atmosphere. ... disrupted it may enter into a vicious cycle to ...
(Date:4/17/2014)... Branch at Galveston are the first to recommend ... cancer should begin colorectal cancer screening earlier than ... a high incidence of secondary colorectal cancers among ... recommendations that the younger women in this group ... their initial cervical cancer diagnosis instead of waiting ...
(Date:4/17/2014)... a special feature of The Proceedings ... ) published April 29, raises a number of startling ... most of us take for granted. At the end ... around the globe shifted from hunting animals and gathering ... It seems so straightforward and yet the more scientists ...
Breaking Biology News(10 mins):Methane climate change risk suggested by proof of redox cycling of humic substances 2Radiation therapy for cervical cancer increases risk for colorectal cancer 2Genetic study tackles mystery of slow plant domestications 2Genetic study tackles mystery of slow plant domestications 3Genetic study tackles mystery of slow plant domestications 4
... Researchers at Albany Medical College are releasing results of a ... search for new drug targets aimed at preventing or reversing ... stroke. In the March 5 issue of the ... and his colleagues at the college,s Center for Cardiovascular Science ...
... , This release is available in German . ... beewolves, house beneficial bacteria on their cocoons that guarantee ... Institute for Chemical Ecology in Jena teamed up with ... Leibniz Institute for Natural Product Research Hans-Knoell-Institute - ...
... African-Americans age 65 and younger are more than twice ... any region, and people who have a stroke are more ... researchers at the University of Alabama at Birmingham (UAB) School ... for Geographic and Racial Differences in Stroke (REGARDS) study, one ...
Cached Biology News:Preventing or reversing inflammation after heart attack, stroke may require 2-pronged approach 2Beewolves protect their offspring with antibiotics 2Beewolves protect their offspring with antibiotics 3UAB study shows African-Americans have highest stroke rate, southerners more likely to die 2
(Date:1/15/2014)... 2014 Freeslate, Inc ., the ... that Lupin Limited, one of India’s top five pharmaceutical ... PharmD System for high throughput solid form screening. ... on a wide range of quality, affordable generic and ...
(Date:1/14/2014)... 2014 Date: Friday, April 11, 2014 , ... Club, 1360 Almshouse Road, Warrington, Pa. , Details: ... dedicated to finding a cure for hepatitis B and improving ... its annual Crystal Ball on Friday, April 11 at Warrington ...
(Date:1/14/2014)... provider of strategic communications services to corporations and organizations preparing for ... United States and Europe , today ... to the firm,s Washington, D.C. office. ... years of service as Associate Commissioner for the Office of External ...
(Date:1/14/2014)... , Jan. 14, 2014 The largest ... research medicinal plants and therapeutic derivatives thereof has ... professionals, and researchers about the challenges of adulterated ... http://photos.prnewswire.com/prnh/20100430/DC95601LOGO ) The Society for ...
Breaking Biology Technology:Lupin Selects Freeslate’s CM Protégé PharmD System to Accelerate Polymorph Screening for Drug Development 2Lupin Selects Freeslate’s CM Protégé PharmD System to Accelerate Polymorph Screening for Drug Development 3Hepatitis B Foundation to Host Annual Crystal Ball Gala 2Former FDA Associate Commissioner Returns To 3D Communications 2World's Largest Group of Medicinal Plant Researchers Endorses ABC-AHP-NCNPR Botanical Adulterants Program 2World's Largest Group of Medicinal Plant Researchers Endorses ABC-AHP-NCNPR Botanical Adulterants Program 3World's Largest Group of Medicinal Plant Researchers Endorses ABC-AHP-NCNPR Botanical Adulterants Program 4World's Largest Group of Medicinal Plant Researchers Endorses ABC-AHP-NCNPR Botanical Adulterants Program 5World's Largest Group of Medicinal Plant Researchers Endorses ABC-AHP-NCNPR Botanical Adulterants Program 6World's Largest Group of Medicinal Plant Researchers Endorses ABC-AHP-NCNPR Botanical Adulterants Program 7World's Largest Group of Medicinal Plant Researchers Endorses ABC-AHP-NCNPR Botanical Adulterants Program 8
... Inc. ("OriGene") today announced it has raised an ... With this financing, OriGene completed the acquisition of ... a manufacturer and provider of monoclonal antibodies (mAb) ... completes the establishment of its technology center to ...
... NKTR ) will announce its financial results ... on Wednesday, February 25, 2009, after the close,of U.S.-based ... will host a conference call to review the results ... (PT). , The press release ...
... VALLEY COTTAGE, N.Y., Feb. 11 XTL,Biopharmaceuticals Ltd. (Nasdaq: ... Mr.,David Grossman and Mr. Boaz Shweiger have been appointed ... Mr. Grossman will also be assuming,the role of Co-Chief ... of its strategic alternatives. , ...
Cached Biology Technology:OriGene Technologies, Inc. Establishes High Throughput Monoclonal Antibody Production Outsourcing Center in China 2Nektar to Announce Year-End 2008 Financial Results on Wednesday, February 25, 2009 After Close of U.S.-Based Financial Markets 2XTL Biopharmaceuticals Announces Appointment of David Grossman and Boaz Shweiger to Board of Directors 2XTL Biopharmaceuticals Announces Appointment of David Grossman and Boaz Shweiger to Board of Directors 3
For the quantitative determination of canine Interferon gamma,(IFN-γ) concentrations in cell culture supernates, serum and,plasma....
Request Info...
Homo sapiens olfactomedin 1, transcript variant 3...
Component of GELase™ Agarose Gel-Digesting Preparation. 1 ml of 50X Buffer is sufficient for replacing the buffer in at least 5 g of gel....
Biology Products: