Navigation Links
Warming Antarctic seas likely to impact on krill habitats
Date:8/22/2013

Antarctic krill are usually less than 6 cm in length but their size belies the major role they play in sustaining much of the life in the Southern Ocean. They are the primary food source for many species of whales, seals, penguins and fish.

Krill are known to be sensitive to sea temperature, especially in the areas where they grow as adults. This has prompted scientists to try to understand how they might respond to the effects of further climate change.

Using statistical models, a team of researchers from the British Antarctic Survey and Plymouth Marine Laboratory assessed the likely impact of projected temperature increases on the Weddell Sea, Scotia Sea and Southern Drake Passage, which is known for its abundance of krill. This region has experienced sea surface warming of as much as 1C over fifty years. Projections suggest this could rise by another 1C by the end of the 21st century.

The models are based on equations which link krill growth, sea surface temperature, and food availability. An analysis of the results, published this week in the online journal PLOS ONE, suggests warming, if continued, could reduce the area of growth habitat by up to 20%.

In the early life stages krill require deep water with low acidity and a narrow range of temperatures for their eggs to successfully hatch and develop. The larvae then feed on algae on the underside of sea ice.

The adults require suitable temperatures and enough of the right type of food (larger phytoplankton) to successfully grow and reproduce. Many of these critical environmental features (temperature, acidity, sea ice and food availability) could be affected by climate change.

The projected effects of warming are not evenly spread. The island of South Georgia is located within the area likely to be worst affected. Here the reduction in krill habitat could be as much as 55%. The island is home to a range of animals such as fur seals and macaroni penguins that depen
'/>"/>

Contact: Paul Seagrove
psea@bas.ac.uk
44-012-232-21414
British Antarctic Survey
Source:Eurekalert

Page: 1 2

Related biology news :

1. Global investigation reveals true scale of ocean warming
2. Rapid upper ocean warming linked to declining aerosols
3. Ups-and-downs of Indian monsoon rainfall likely to increase under warming
4. Global cooling as significant as global warming
5. Better wheat for a warming planet
6. Are tropical forests resilient to global warming?
7. Volcanic aerosols, not pollutants, tamped down recent Earth warming, says CU-Boulder study
8. Jurassic records warn of risk to marine life from global warming
9. Southwest regional warming likely cause of pinyon pine cone decline, says CU study
10. Lungs of the planet reveal their true sensitivity to global warming
11. Global warming less extreme than feared?
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:12/17/2014)... , Dec. 15, 2014  HITLAB SM ... Clinical Practices (GCP) audit to confirm its adherence ... regulations. This accomplishment enables HITLAB to conduct regulated ... the highest principles for patient safety and research ... global healthcare access, quality, and delivery with innovative ...
(Date:12/17/2014)... 16, 2014 Research and Markets ... the "Global Chemical Sensor Market 2015-2019" ... http://photos.prnewswire.com/prnh/20130307/600769 One major trend ... for medical sensors in biomedical applications. Chemical sensors ... and correct diagnosis during surgical procedures. The Global ...
(Date:12/15/2014)... DUBLIN , Dec. 12, 2014 Research ... announced the addition of the "Global Facial ... http://photos.prnewswire.com/prnh/20130307/600769 ... the identification of individuals. Facial recognition system measures ... as nose, jaw edges, mouth, and the distance ...
Breaking Biology News(10 mins):HITLAB Completes GCP Audit for FDA Smart Device & App Compliance 2Global Chemical Sensor Market 2015-2019: Key Vendors are Abbott Laboratories, Bayer, Hoffmann La-Roche, Johnson & Johnson, NGK Spark Plugs and Robert Bosch 2Global Facial Recognition Market 2015-2019: Key Vendors are 3M Cogent, Cognitec Systems, NEC and Safran Group 2Global Facial Recognition Market 2015-2019: Key Vendors are 3M Cogent, Cognitec Systems, NEC and Safran Group 3
... Sept. 30, 2011 -- Molecular motion in proteins ... collaboration by researchers at the Department of Energy,s ... Tennessee, in research reported in Physical Review Letters. ... Governor,s Chairs Jeremy Smith and Alexei Sokolov, combined ...
... in the October issue of The American Naturalist ... with the help of the same phenomenon that fogs up ... Darwin University in Australia, tree frogs often plop themselves down ... Australia. When they return to their dens, condensation forms on ...
... the diaphragm muscles has received approval from the Food and ... Sclerosis (ALS), also known as Lou Gehrig,s disease. The ... patients breathe longer without the aid of a ventilator. ... Medical Center who helped develop and test DPS and who ...
Cached Biology News:High-performance simulation, neutrons uncover 3 classes of protein motion 2Tree frogs chill out to collect precious water 2Diaphragm pacing system receives FDA approval for use with ALS patients 2
(Date:12/22/2014)... Dec. 22, 2014  ( www.competitivehealth.com ) — Competitive ... medical bill review and advocacy service, has signed an ... WellCard Savings discount health services marketplace. 63% ... more than they expected to pay. As part of ... costs, WellCard Savings is pleased to offer medical bill ...
(Date:12/22/2014)... 22, 2014 Fertility Associates of Memphis ... Bank USA , a network of more than 20 ... partnership, patients have fast access to a national pool ... IVF . Fertility Associates of Memphis is the only ... treatment option. , Dr. William Kutteh , director ...
(Date:12/19/2014)... BioPlus Specialty Pharmacy (BioPlus), one ... of Nick Maroulis, Pharm.D. to the newly created position ... In this position, Dr. Maroulis will continue to manage ... of our multi-site pharmacies as the company expands. Dr. ... that time he has served in many different capacities ...
(Date:12/19/2014)... Dec. 19, 2014 Bina Technologies, Inc. (Bina, ... that they have been acquired by Roche (SIX: RO, ... privately held company that provides a big data platform ... (NGS) data for the academic and translational research markets. ... and will continue to focus on development of their ...
Breaking Biology Technology:WellCard Savings Announces CoPatient Medical Bill Review Service for Members 2Fertility Associates of Memphis Announces Partnership with Donor Egg Bank USA 2Fertility Associates of Memphis Announces Partnership with Donor Egg Bank USA 3BioPlus Specialty Pharmacy Promotes Dr. Nick Maroulis to Vice President of Specialty Pharmacy Services 2Bina Technologies is acquired by Roche. 2Bina Technologies is acquired by Roche. 3
... Lucigen Corporation has been awarded the maximum $250,000 ... a special SBIR grant program for its enzyme research. ... products and technologies with high potential value. , ,Under ... raised by Lucigen from outside investors. , ,The award ...
... For small businesses, sometimes getting the company name out ... is working to help these fledglings utilize the ... marketing company Constant Contact, Business Filings will now provide ... new customers. Constant Contact's clientele will also have access ...
... solution , ,ROCHESTER, Wis. Runzheimer ... announced Monday the formation of an exclusive partnership ... information to travel managers within the Concur Expense ... firm specializing in travel programs, policy and cost ...
Cached Biology Technology:Small businesses to benefit from Business Filings partnership 2Runzheimer and Concur develop travel management service 2
... Model SPD131DDA , Our most chemically resistant ... to handle the rigors and solvents of Combinatorial ... display, dual independent timers, an automatic bleeder valve ... pathway. , , Adjustable Vacuum Level ...
... a dedicated concentrator for efficient drying of ... The integrated system combines the SpeedVac™ Concentrator ... design, automatic pump and rotor control, and ... for heater time), makes the DNA120 indispensable ...
... George Paxinos Affiliation: School of Psychology, The ... Watson Affiliation: Curtin University of Technology, Perth, Australia ... atlas of the rat brain. It is ... mm) revison and extension of the compact 3rd ...
For absolute protein quantification. 4 peptides in 5 vials x 2 nmol per peptide...
Biology Products: