Navigation Links
Pacific shellfish ready to invade Atlantic
Date:8/7/2008

As the Arctic Ocean warms this century, shellfish, snails and other animals from the Pacific Ocean will resume an invasion of the northern Atlantic that was interrupted by cooling conditions three million years ago, predict Geerat Vermeij, professor of geology at the University of California, Davis, and Peter Roopnarine at the California Academy of Sciences.

Climate models predict a nearly ice-free Arctic Ocean by 2050. That will restore conditions that last existed during the mid-Pliocene era around three to 3.5 million years ago. Several north Pacific species have relatives in the north Atlantic, and the fossil record shows a lot of invasion from the Pacific to the Atlantic at that time, Vermeij said.

When cold conditions returned, the Arctic route was cut off, mostly by a lack of food. As the ice melts, productivity in the Arctic will rise and the northward march of the mollusks will resume where it left off three million years ago.

Vermeij and Roopnarine reviewed literature on mollusks found in the Bering and Chuckchi seas between Alaska and eastern Siberia. At least 77 molluscan lineages, about a third of the species of shallow-water shellfish in the Bering Sea, have the potential to spread to the Atlantic, they concluded.

Three factors drove the one-way traffic across the North Pole during the Pliocene, Vermeij said. The Bering and Chukchi seas are very productive, with abundant food; there is a net northward flow of water from the Pacific through the Bering Strait; and strong competition in the Bering Sea means bigger, tougher animals.

But the invaders will not wipe out native species, Vermeij said. The fossil record shows that invasions rarely lead to species extinction in marine environments, he said. Instead, the invasion will add new species and hybrids and increase competition in the North Atlantic.

"The composition and dynamics of north Atlantic communities will change," Roopnarine said. "But wh
'/>"/>

Contact: Andy Fell
ahfell@ucdavis.edu
530-752-4533
University of California - Davis
Source:Eurekalert

Page: 1 2

Related biology news :

1. Parasites outweigh predators in Pacific Coast estuaries
2. NOAA study shows eastern tropical pacific ocean dolphin populations improving
3. Pacific coast turning more acidic
4. New study finds most North Pacific humpback whale populations rebounding
5. Worlds largest marine protected area created in Pacific Ocean
6. Quakes under Pacific floor reveal unexpected circulatory system
7. Environmental setting of human migrations in the circum-Pacific Region
8. Freshwater supplies threatened in central Pacific
9. Saltwater sleuths: Seeking clues to help determine the ages of fish and shellfish populations
10. Underwater microscope helps prevent shellfish poisoning along Gulf Coast of Texas
11. U-M ballast-free ship could cut costs while blocking aquatic invaders
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/17/2014)... bone marrow need to produce hydrogen sulfide in order ... a new study from the Center for Craniofacial Molecular ... USC. , Professor Songtao Shi, principal investigator on the ... the cells governs the flow of calcium ions. The ... results in osteogenesis, or the creation of new bone ...
(Date:4/17/2014)... Clemson professor Rajendra Singh Thursday as a "Champion ... expand solar deployment in the residential, commercial and ... Professor of Electrical and Computer Engineering and director ... a local hero leading the charge across the ... solar power and driving policy changes at the ...
(Date:4/17/2014)... parasites and pathogens that devastate honeybees in Europe, Asia ... but do not appear to be impacting native honeybee ... of researchers., The invasive pests include including Nosema ... African honeybees appear to be resilient to these invasive ... to control pests in Europe, Asia and the United ...
Breaking Biology News(10 mins):White House honors Clemson professor as 'Champion of Change' for solar deployment 2East African honeybees are safe from invasive pests… for now 2East African honeybees are safe from invasive pests… for now 3
... Center have discovered a basic mechanism by which smooth ... ?sometimes abnormally ?suggesting methods of treatment for various coronary ... involved in hypertension, coronary artery disease, tumors called leiosarcomas ... it is now possible to begin to design therapies ...
... different rates, and the evolutionary line that produced humans seems ... new study by scientists at the European Molecular Biology Laboratory ... very ancient ancestor that have been lost in more quickly-evolving ... genes in the first animals. The work appears in the ...
... warblers and beaver dams once were bountiful in an area ... left this area, elk grew more plentiful, browsing heavily on ... sparrows have replaced the warblers in what is now a ... of the wolf, a top predator. That's the compelling finding ...
Cached Biology News:UT Southwestern researchers unravel control of growing blood vessels 2The earliest animals had human-like genes 2The earliest animals had human-like genes 3Wolves' top-down effect 2
(Date:1/14/2014)... Jan. 14, 2014 As pet owners drew up their lists ... them wrote: "Take better care of my furry companion." Nowadays there ... and top-brand carrying cases to take the little canine or feline ... feel compelled to buy some pricey toys at the pet store. ...
(Date:1/14/2014)... and BETHESDA, Md. , Jan. 14, ... with two institutes from the National Institutes of Health ... bringing safer, more effective treatments to patients on a ... for Advancing Translational Sciences (NCATS) and the National Eye ...
(Date:1/14/2014)... WESTBOROUGH, Mass. , Jan. 14, 2014  RXi ... on discovering, developing and commercializing innovative therapies addressing ... announced that it received the Notice of Allowance ... on its unique self-delivering RNAi compounds (sd-rxRNA®), for ...
(Date:1/14/2014)... USA, and Cardiff, UK (PRWEB) January 13, 2014 ... technology development leader with more than 20 years in ... for optics and photonics . Hainsey will serve as ... delighted to have Dr. Hainsey join SPIE as our ...
Breaking Biology Technology:New Year's Resolution: Give Pets the Gift of Top-Notch Health Care 2Organovo Announces Collaboration with National Institutes of Health 2Organovo Announces Collaboration with National Institutes of Health 3RXi Pharmaceuticals Receives US Notice of Allowance for a Key Patent Relating to its Self-Delivering Technology with sd-rxRNAs targeting CTGF, including RXI-109, for the Treatment of Fibrotic Disorders 2RXi Pharmaceuticals Receives US Notice of Allowance for a Key Patent Relating to its Self-Delivering Technology with sd-rxRNAs targeting CTGF, including RXI-109, for the Treatment of Fibrotic Disorders 3Photonics R&D Leader Bob Hainsey Joins SPIE Technical Staff 2
... 2009 First Quarter Highlights , , , ... million in the first quarter of 2008 , ... first quarter of 2008 , Saflex ... The Company,s cash generation in the quarter allowed for debt ...
... 6 ChanTest, the leading expert in ion channels ... discovery, development, and safety -- is one of eight ... Research and Commercialization Program. Governor Ted Strickland and Interim ... of the Ohio Third Frontier Commission, Mark Barbash, announced ...
... - Aegera Therapeutics is pleased to announce the ... for AEG33773, a novel, orally bio-available small molecule ... neuropathy. , The Phase 2a study, entitled A ... and Efficacy of AEG33773 versus Placebo in Patients ...
Cached Biology Technology:Solutia Reports First Quarter 2009 Results 2Solutia Reports First Quarter 2009 Results 3Solutia Reports First Quarter 2009 Results 4Solutia Reports First Quarter 2009 Results 5Solutia Reports First Quarter 2009 Results 6Solutia Reports First Quarter 2009 Results 7Solutia Reports First Quarter 2009 Results 8Solutia Reports First Quarter 2009 Results 9Solutia Reports First Quarter 2009 Results 10Solutia Reports First Quarter 2009 Results 11Solutia Reports First Quarter 2009 Results 12Solutia Reports First Quarter 2009 Results 13Solutia Reports First Quarter 2009 Results 14Solutia Reports First Quarter 2009 Results 15Solutia Reports First Quarter 2009 Results 16Solutia Reports First Quarter 2009 Results 17Solutia Reports First Quarter 2009 Results 18Solutia Reports First Quarter 2009 Results 19Solutia Reports First Quarter 2009 Results 20Solutia Reports First Quarter 2009 Results 21ChanTest Awarded $4.8 Million Through the Ohio Third Frontier Research and Commercialization Program 2ChanTest Awarded $4.8 Million Through the Ohio Third Frontier Research and Commercialization Program 3Aegera Initiates Phase 2 Clinical Trial Of AEG33773 - A Small Molecule Targeting Neuropathic Pain 2
Collected from 8-12 week old sexually mature rats. Pricing: $100/unit for 1 - 10 units...
Mouse Aminopeptidase P2/XPNPEP2 Affinity Purified PAb Protein Family: Aminopeptidases, Metalloproteases...
... 53 new primer sets added in Dec 2005 ... 3 hours , Detection from as ... , Specific primers available for hundreds of ... real-time or end-point RT-PCR , Ideal ...
AGAROSE PREP, 50G, 1 EA. Category: Genephor Precast Gels....
Biology Products: