Navigation Links
Scientists discover global pattern of big fish diversity in open oceans

once the world's most diverse area for species of tuna and billfish ?and an important tuna spawning ground. Now it is indistinguishable from the rest of the ocean.

The loss of diversity means that where fishermen might have once caught 10 different species in an area on average, now they catch only five. "It's not yet extinction; it's local fishing out of species," says Myers. "Where you once had a range of a species in dense numbers, now you might catch one or two of a certain species."

While other studies have looked at local or regional populations of fish over time, it has been difficult to discern the underlying cause of decreases or increases of catch. This study is the first to step back to examine climate impacts and fishing in unison at a global scale. It shows that environmental changes affect fish populations year-to-year, but overfishing is the primary driver of long-term declines in the variety of big fish.

"This study brings to the surface something that was buried," says Daniel Pauly, a fisheries biologist from the University of British Columbia Fisheries Centre. "The long-term trend of decline is not discernable at first because there are lots of things happening ?like the short-term effects of El Nino."

"We know there are decadal patterns in climate and ocean ecosystems," adds Nathan Mantua of the University of Washington's Climate Impact Group. "If this were the only factor, we might expect declines to be quickly reversible. What they've shown here is that we're on a curvy one-way street, with clear trends towards a reduction in biodiversity. There is real cause for alarm here."

Scientists say losing the variety of fish does not bode well for the future health of open oceans. A robust portfolio of different species is a key to maintaining our supply of fish in the long term and the ability of these living resources to rebound from environmental changes.

Open Ocean Hotspots

Coral reefs have lo
'"/>

Source:SeaWeb


Page: 1 2 3 4 5

Related biology news :

1. Scientists ID molecular switch in liver that triggers harmful effects of saturated and trans fats
2. Scientists Replicate Hepatitis C Virus in Laboratory
3. Scientists detect probable genetic cause of some Parkinsons disease cases
4. Scientists find missing enzyme for tuberculosis iron scavenging pathway
5. Scientists seek answers on what activates deadly anthrax spores
6. Yale Scientists Find MicroRNA Regulates Ras Cancer Gene
7. Scientists collaborate to assess health of global environment
8. Scientists decipher genome of fungus that can cause life-threatening infections
9. Scientists discover the cellular roots of graying hair
10. Scientists rid stem cell culture of key animal cells
11. Scientists develop new color-coded test for protein folding
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Scientists discover global pattern big fish diversity open oceans

(Date:8/22/2014)... Bethesda, MD FASEB MARC (Maximizing Access to Research ... the FASEB Grant Writing Seminar & Practical Exercises Workshop ... in Bethesda, Maryland from August 25-26, 2014. These ... postdoctorates and research scientists from underrepresented groups in the ... This year MARC conferred 11 awards totaling $20,350. ...
(Date:8/22/2014)... important discoveries in basic and clinical research and ... into a complex offensive spanning multiple fronts. , ... lab could help find new and more selective ... that targets a specific enzyme overexpressed in certain ... from brain tumours. , Chemistry professor Christopher Cairo ...
(Date:8/22/2014)... study of captive black rhino reproduction in Europe ... of breeding programmes. , Researchers from Chester Zoo, ... Liverpool carried out a six-year study which encompassed ... Dr Katie Edwards led the research as part ... She says: "Although some black rhinoceros breed well ...
Breaking Biology News(10 mins):New enzyme targets for selective cancer therapies 2New enzyme targets for selective cancer therapies 3Hormone analysis helps identify horny rhinos 2
... March 7, 2013 (Bronx, NY) Researchers at ... been awarded a $12 million grant from the National Institutes ... prevent HIV infection in women. "As we move into ... having its greatest impact on women, particularly in sub-Sahara Africa," ...
... MD FASEB MARC (Maximizing Access to Research Careers) ... 2013 American College of Sports Medicine (ACSM) Northwest Chapter ... awards are meant to promote the entry of underrepresented ... the basic science community and to encourage the participation ...
... Research Council (BBSRC) has launched a bioscience response to ... that threatens our third most common broadleaf tree (after ... has been awarded to gather an in-depth understanding of ... about some ash trees, natural resistance to attack. Computer ...
Cached Biology News:Einstein receives $12 million grant to develop device for preventing HIV infection 2Einstein receives $12 million grant to develop device for preventing HIV infection 3Bioscience to battle ash dieback 2Bioscience to battle ash dieback 3
(Date:8/22/2014)... August 22, 2014 Nerium International, ... is in the spotlight again. Nerium will showcase ... its NeriumFirmTM Body Contouring Cream to Hollywood’s elite ... Creations during the 66th Primetime Emmy® Awards. , ... extract, third-party clinical trials show that NeriumAD night ...
(Date:8/21/2014)... LYNBROOK, N.Y. , Aug. 21, 2014 /PRNewswire/ ... a biopharmaceutical company developing first in class collagenase-based ... histolyticum or CCH) in the U.S. and XIAPEX ... statistically significant results from a randomized, double-blind Phase ... of cellulite, or edematous fibrosclerotic panniculopathy. The results ...
(Date:8/21/2014)... An international research team including DESY scientists has observed ... The team reports in the journal Science ... lattices inside the nanodroplets. It is the first time ... in larger samples of what is known as superfluid ... exceeded our best expectations," says Andrey Vilesov of the ...
(Date:8/21/2014)... His Majesty Willem-Alexander, King of the ... of His Majesty Willem-Alexander, King of the Netherlands, has ... of POET-DSM Advanced Biofuels’ Project LIBERTY cellulosic ethanol plant ... King will take part in the Grand Opening Ceremony ... a.m.-12:20 p.m. and tour the plant. POET-DSM is a ...
Breaking Biology Technology:Nerium International Joins Television’s Biggest Stars at Backstage Creations Giving Suite at the 66th Primetime Emmy Awards 2Nerium International Joins Television’s Biggest Stars at Backstage Creations Giving Suite at the 66th Primetime Emmy Awards 3BioSpecifics Technologies Corp. Announces Positive Data from Phase 2a Study of CCH for Treatment of Cellulite 2BioSpecifics Technologies Corp. Announces Positive Data from Phase 2a Study of CCH for Treatment of Cellulite 3BioSpecifics Technologies Corp. Announces Positive Data from Phase 2a Study of CCH for Treatment of Cellulite 4BioSpecifics Technologies Corp. Announces Positive Data from Phase 2a Study of CCH for Treatment of Cellulite 5Scientists observe quantum vortices in cold helium droplets 2His Majesty Willem-Alexander, King of the Netherlands, to Attend Project LIBERTY opening 2His Majesty Willem-Alexander, King of the Netherlands, to Attend Project LIBERTY opening 3
... Emerging Growth Equities,Ltd. initiates coverage of CombiMatrix Corporation ... an $18.00 price target. CombiMatrix is a life ... genetic,diagnostics that leverage its core CustomArray technology., ... and investment,banking firm that provides high quality distribution, ...
... Product Line Extension Builds on Existing Brand Strength and Pediatric ... ... Focus, PLYMOUTH MEETING, Pa., Aug. 18 /Xinhua-PRNewswire-FirstCall/ ... that the Sunstone (Tangshan) Pharmaceutical Co., Ltd.,("Sunstone"), its wholly-owned subsidiary, ...
... of Trade Alerts on stocks making news today., Investors ... by visiting:, http://www.BeaconEquity.com/m , Today,s Trade Alerts include: Elan ... ), Amgen Inc. (Nasdaq: AMGN ), Genentech Inc. (NYSE: ... Gilead Sciences Inc. (Nasdaq: GILD )., Join the ...
Cached Biology Technology:Emerging Growth Equities, Ltd. Initiates Coverage of CombiMatrix Corporation with a BUY Rating and an $18.00 Price Target 2BMP Sunstone Receives Production License from the SFDA to Manufacture and Market Pediatric Multivitamin Granules in the PRC 2BMP Sunstone Receives Production License from the SFDA to Manufacture and Market Pediatric Multivitamin Granules in the PRC 3BMP Sunstone Receives Production License from the SFDA to Manufacture and Market Pediatric Multivitamin Granules in the PRC 4BeaconEquity.com Issues Trade Alerts on Biotechnology Stocks: ELN, PFE, AMGN, DNA, BIIB, GILD 2BeaconEquity.com Issues Trade Alerts on Biotechnology Stocks: ELN, PFE, AMGN, DNA, BIIB, GILD 3
Sterile, Cell culture tested...
... have been many modifications to the original formulas ... solutions still play an important role in tissue,culture. ... pH and osmotic balance in the medium and ... inorganic ions, is as valuable today as when ...
A substrate for all AChE-based EIA kits....
The Synergy HT utilizes a unique dual-optics design combined with monochromator wavelength selection to provide uncompromised performance in absorbance, fluorescence and luminescence reading modes. ...
Biology Products: