Navigation Links
Tropical plankton invade Arctic waters
Date:7/24/2012

r sea ice over past decades, average surface temperature has gone up as much as 5 degrees centigrade (9 degrees Fahrenheit) since 1950 in some patches.

Physical oceanographers have different ideas on the mechanics of how more southerly water--and the things living in it--may arrive in the arctic. However, most agree that it will happen if climate keeps warming, said Arnold Gordon, head of Lamont's division of ocean and climate physics, who was not involved in the research. For one, a countercurrent running near Greenland, the North Atlantic Polar Gyre, normally wards off the Gulf Stream; but that gyre is predicted to slow with warming. Atlantic currents might also respond to changing wind patterns, or to the increasing fresh water now pouring into the northern ocean from melting sea ice and glaciers. Either way, this could draw more southerly water into the north, said Gordon.

Louis Fortier, an arctic oceanographer at Laval University in Quebec, said of the recent injections of southerly waters, "Whether or not [such] intrusions are signs of this predicted increased advection in response to climate change, nobody can tell yet, I believe. But for me, the observations so far certainly support the models." Paul Snelgrove, a specialist in cold-ocean studies at Memorial University of Newfoundland, agreed. "The question is, are these kinds of incursions becoming more frequent and stronger? If it continues, the case would become more persuasive. Right now, this study is not a definitive test, but it seems like an intriguing teaser as to what might happen."

Whatever the answer, this is the first time a living population of southern radiolaria has been found so far north. Radiolaria live only about a month, so it must have taken 80-some generations for some species to make the five- to seven-year trip, say the authors. On the way, successive generations could have adapted to colder waters. In 2009, the surface water in the sample a
'/>"/>

Contact: Kevin Krajick
kkrajick@ei.columbia.edu
212-854-9729
The Earth Institute at Columbia University
Source:Eurekalert  

Page: 1 2 3 4 5

Related biology news :

1. Palms reveal the significance of climate change for tropical biodiversity
2. The absence of elephants and rhinoceroses reduces biodiversity in tropical forests
3. Native plant restoration not enough to maintain tropical dry forests in Hawaii
4. Rodent robbers good for tropical trees
5. Have thieving rodents saved tropical trees?
6. Thieving rodents: Did they save tropical trees?
7. Scientists discover huge phytoplankton bloom in ice-covered waters
8. Scientists discover new trigger for immense North Atlantic plankton bloom
9. NOAA plankton surveys, second longest in the North Atlantic, add to new global effort
10. Genetic survey of endangered Antarctic blue whales shows surprising diversity
11. Increase in Arctic shipping poses risk to marine mammals
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Tropical plankton invade Arctic waters
(Date:8/29/2014)... understand how the repeated climatic shifts over the ... of genetic diversity, a team of researchers led ... Ana Carnaval developed a new biodiversity metric called ... which the genetic variation within species is restricted ... professor of biology, and 14 other researchers from ...
(Date:8/29/2014)... news release is available in German . ... key players in the natural nitrogen cycle on Earth ... specialist bacteria were thought to depend on nitrite as ... led by Holger Daims, a microbiologist at the University ... use hydrogen as an alternative source of energy. The ...
(Date:8/29/2014)... such as the prolific bloomer Emiliania huxleyi , ... discovered. The finding contradicts the common view that ... on scarce supplies of thiamine in the ocean to ... about the ocean," says CIFAR Senior Fellow Alexandra ... paper with CIFAR fellows John Archibald (Dalhousie ...
Breaking Biology News(10 mins):CCNY team defines new biodiversity metric 2Hydrogen powers important nitrogen-transforming bacteria 2Hydrogen powers important nitrogen-transforming bacteria 3Not all phytoplankton in the ocean need to take their vitamins 2Not all phytoplankton in the ocean need to take their vitamins 3
... fittest survive has been called into question by new research ... A collaboration between the Universities of Exeter and Bath in ... in the US, challenges our current understanding of evolution by ... The work represents a new approach to studying evolution that ...
... done by Mark Lusk and colleagues at the Colorado ... solar cells. Their latest work describes how the size ... energy to electrons to generate electricity. The results ... ACS Nano . The advance provides evidence ...
... NeoProteomics Inc., a biomarker development and software ... Case Western Reserve University. The deal has potential ... diabetes, and inflammatory diseases. Proteomics is the ... structures of biological systems. NeoProteomics, founded in 2006 ...
Cached Biology News:Research shows not only the fittest survive 2Size matters: Smaller particles could make solar panels more efficient 2Case Western Reserve and NeoProteomics announce exclusive option 2
(Date:9/2/2014)... Opertech Bio, Inc., a company that ... approach to sensory evaluation, today announced the issuance ... Patent and Trademark Office, encompassing high-throughput sensory discrimination ... taste evaluation technology called Microtiter Operant Gustometer or ... for rapid characterization of taste sensory properties,” said ...
(Date:9/2/2014)... - Oncothyreon Inc. (Nasdaq: ONTY ) announced today that ... will present at the Rodman & Renshaw 16 th ... on Tuesday, Sept. 9, 2014 at 2:05 p.m. Eastern. ... presentation will be accessible by visiting the Oncothyreon website ... About Oncothyreon Oncothyreon is a biotechnology ...
(Date:9/2/2014)... Mount, NC (PRWEB) September 02, 2014 ... establishment of its 11th clinical research site: PMG Research ... assumed ownership and operation of the clinical research department ... further expanding PMG’s presence in eastern North Carolina. This ... patients. For the patients in Rocky Mount and the ...
(Date:9/2/2014)... The inventors of tinAway, a novel ... are seeking support for development costs through a crowdfunding ... http://igg.me/at/tinaway ), was launched on September 1, 2014. , ... and is based on ten years of neuroscience ... and software engineers, Dr. Ian Dixon and Mr. Tony ...
Breaking Biology Technology:Opertech Bio Receives U.S. Patent for High-Throughput Taste Evaluation Technology 2PMG Research Announces the Formation of its Eleventh Site 2PMG Research Announces the Formation of its Eleventh Site 3tinAway Pty. Ltd. launch a crowdfunding campaign to fund a clinical trial of tinAway, a new potential cure for chronic tinnitus 2tinAway Pty. Ltd. launch a crowdfunding campaign to fund a clinical trial of tinAway, a new potential cure for chronic tinnitus 3tinAway Pty. Ltd. launch a crowdfunding campaign to fund a clinical trial of tinAway, a new potential cure for chronic tinnitus 4tinAway Pty. Ltd. launch a crowdfunding campaign to fund a clinical trial of tinAway, a new potential cure for chronic tinnitus 5
... QUEBEC CITY, Aug. 12 /PRNewswire-FirstCall/ - AEterna Zentaris Inc.,(NASDAQ: ... on,endocrinology and oncology, today reported financial and operating results,for the ... Highlights, - Advancement of cetrorelix Phase 3 program ... trial: patient enrollment completed; - ...
... ST. LOUIS, Aug. 12 At the Board ... quarterly cash dividend of,$.13 per share. The dividend ... record on September 2, 2008., About Sigma-Aldrich: ... company. Our biochemical and organic chemical products and ...
... LI-COR Biosciences continues to,expand its offering of ... new IRDye(R) 680 Donkey Anti-Chicken IgG, IRDye ... IgG, and IRDye 800CW Goat,Anti-Rat IgG antibodies ... detection for multiple applications including,quantitative Westerns, In-Cell ...
Cached Biology Technology:AEterna Zentaris Reports Second Quarter 2008 Financial and Operating Results 2AEterna Zentaris Reports Second Quarter 2008 Financial and Operating Results 3AEterna Zentaris Reports Second Quarter 2008 Financial and Operating Results 4AEterna Zentaris Reports Second Quarter 2008 Financial and Operating Results 5AEterna Zentaris Reports Second Quarter 2008 Financial and Operating Results 6AEterna Zentaris Reports Second Quarter 2008 Financial and Operating Results 7
...
For use with SSP products or any application requiring agarose gel separation • Multiple formats available to meet various throughput needs • Includes replacement parts for each un...
...
Request Info...
Biology Products: