Navigation Links
Glass sponges take advantage of retreating Antarctic ice shelves
Date:7/12/2013

The breakup and collapse of the Larsen A ice shelf in the western Weddell Sea in 1995 has resulted in fundamental changes to life on the sea bed in less than two decades. As reported by biologists from the Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research in the cover story of the current issue of the scientific journal Current Biology, Antarctic glass sponges have been the prime beneficiaries of the disappearance of the ice shelf. To the surprise of the scientists, the density of these archaic filter-feeders has increased threefold between 2007 and 2011 despite only low plankton food supply and water temperatures of minus 2 degrees Celsius. The sponges had also grown remarkably quickly and had completely supplanted competitors for food. The results show that communities at the bottom of the western Weddell Sea react considerably more quickly to climate-related changes than previously thought.

Glass sponges (Hexactinellida), an archaic group of animals at the basis of the animal kingdom, dominate the shallow seafloor in the Antarctic. Many biologists believed that glass sponges grew so slowly that two-metre behemoths would have to be around 10,000 years or older. These assumptions have now been challenged in a new study led by scientists from the Alfred Wegener Institute (AWI) and published in the current issue of the scientific journal Current Biology.

During a Polarstern expedition to the poorly accessible region of the former Larsen A ice shelf, AWI biologists Laura Fillinger and Claudio Richter, together with colleagues from the University of Gothenburg and the Senkenberg Research Institute and Natural History Museum; succeeded in demonstrating that glass sponges can grow rapidly within a short period of time. "We were surprised by what we saw on our video screens in 2011 when we lowered our remotely operated vehicle onto the sea bed at a depth of around 140 metres. In an area, which had reve
'/>"/>

Contact: Sina Loeschke
medien@awi.de
49-471-483-12008
Helmholtz Association of German Research Centres
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Spinning up antibacterial silver on glass
2. From grains of volcanic glass to continental rifting: New Geosphere articles now online
3. Glass offers improved means of storing UKs nuclear waste
4. Feel-good glass for windows
5. NJIT, Chinas Bengbu Glass Institute sign agreement for R&D, training
6. Inspired by deep sea sponges: Creating flexible minerals
7. Bacteria on marine sponges can develop capacity to move and inhibit biofilm formation
8. Microbes, sponges, and worms add to coral reef woes
9. Toughened silicon sponges may make tenacious batteries
10. NOAA scholarship awarded to Jan Vicente to study the impact of ocean acidification on marine sponges
11. Nanosponges soak up oil again and again
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:10/22/2014)... 20, 2014  Leading identity analyst firm Acuity Market ... the world,s population will have a chip-based National eID ... . Asia , with its ... for more than 60% of all National eID cards ... -- "The Global National eID Industry Report: ...
(Date:10/19/2014)... India over the last 30 years contributed only ... during that time, according to a new study ... ., "Energy access is fundamental to development: it ... education, communication, and health," says IIASA researcher Shonali ... energy access is widely agreed to be an ...
(Date:10/18/2014)... referred for evaluation of suspected genetic conditions, whole-exome ... percent, including detection of a number of rare ... according to a study appearing in JAMA ... with the American Society of Human Genetics annual ... coding regions of thousands of genes simultaneously using ...
Breaking Biology News(10 mins):Half the World's Population Will Have Chip-Based National Electronic Identity (eID) Cards by 2018 2Improved electricity access has little impact on climate change 2Whole-exome sequencing shows potential as diagnostic tool 2
... and the University of Sheffield have applied computing power to crack ... a partial answer to the age old question "what came first ... in this context is "chicken" or at least a particular ... particular chicken protein turns out to come both first and last. ...
... 2010) -- The Damon Runyon Cancer Research Foundation, ... career researchers and innovative cancer research, named 18 ... Award Committee review. The recipients of this ... basic and translational cancer research in the laboratories ...
... A North Carolina State University entomologist has for the ... termite queens to prevent other termites in the colony from ... In a study published online this week in ... Dr. Ed Vargo and colleagues from Japan and Switzerland show ...
Cached Biology News:Researchers apply computing power to crack egg shell problem 2Damon Runyon Cancer Research Foundation awards prestigious fellowships to 18 top young scientists 2Damon Runyon Cancer Research Foundation awards prestigious fellowships to 18 top young scientists 3Damon Runyon Cancer Research Foundation awards prestigious fellowships to 18 top young scientists 4Damon Runyon Cancer Research Foundation awards prestigious fellowships to 18 top young scientists 5Damon Runyon Cancer Research Foundation awards prestigious fellowships to 18 top young scientists 6Don't let your termites grow up to be mommies 2
(Date:10/20/2014)... , Oct. 20, 2014 PureTech , ... tackling big healthcare problems, announced today the closing ... with participation from Invesco Perpetual, a $120 Billion ... to drive PureTech,s existing pipeline forward and to ... has the scientific creativity to really go for ...
(Date:10/20/2014)... 20, 2014 Local veterinary surgeon, Dr. ... investigational study of donor stem cells for dogs with ... therapy and has performed clinical stem cell therapy for ... to determine if a single injection of donor stem ... help reduce pain and inflammation in the treated joints. ...
(Date:10/19/2014)... Oct. 19, 2014 NextCODE Health, which enables clinicians ... in real time, today announced the launch of its new ... , at the American Society of Human Genetics (ASHG) annual ... more, sign up and apply for free beta access, visit ... and benefits can be viewed here . ...
(Date:10/19/2014)... The Asia-Pacific Speech Analytics market report defines and ... and forecast of revenue. This market is estimated to ... by 2019, at a Compound Annual Growth Rate (CAGR) ... the TOC of the Asia-Pacific Speech Analytics market report ... It also provides a glimpse of the segmentation in ...
Breaking Biology Technology:PureTech Announces Expansion with Oversubscribed $55M Funding Round 2PureTech Announces Expansion with Oversubscribed $55M Funding Round 3PureTech Announces Expansion with Oversubscribed $55M Funding Round 4PureTech Announces Expansion with Oversubscribed $55M Funding Round 5PureTech Announces Expansion with Oversubscribed $55M Funding Round 6Cascade Veterinary Referral Center Seeks Candidates for an Investigational Study of Stem Cells for Dogs with Arthritis 2The NextCODE Exchange: The first global, real-time system for sharing full-resolution genomic data 2The NextCODE Exchange: The first global, real-time system for sharing full-resolution genomic data 3The Asia-Pacific Speech Analytics market is estimated to reach $208 million by 2019 - New Report by MicroMarket Monitor 2The Asia-Pacific Speech Analytics market is estimated to reach $208 million by 2019 - New Report by MicroMarket Monitor 3The Asia-Pacific Speech Analytics market is estimated to reach $208 million by 2019 - New Report by MicroMarket Monitor 4
... in venture funding over 10-year ... life of competition, PITTSBURGH, June ... at Hyde Park Prime,Steakhouse on Pittsburgh,s North Shore Olive earlier this week ... competition. A total,of $82,500 was awarded throughout all phases this year., ...
... amounts are in U.S. dollars, QUEBEC CITY, ... TSX: AEZ;), a global biopharmaceutical company focused on,endocrine ... the sale,of its Quebec City property for a ... Zentaris also entered into a long-term lease agreement,enabling ...
... over $235 Million, SOUTH SAN FRANCISCO, Calif., June ... that the company and,GlaxoSmithKline, Inc. (NYSE: GSK ) ... October 27, 2008, as scheduled. Under the,terms of the ... two of the,compounds in the collaboration for further development ...
Cached Biology Technology:EnterPrize Business Plan Competition Announces Final Phase Winners of Cash Awards Totaling $45,000 2AEterna Zentaris Sells Quebec City Building for $7.1 million 2Exelixis and GlaxoSmithKline Agree to Successfully Conclude Six-Year Discovery and Development Collaboration 2Exelixis and GlaxoSmithKline Agree to Successfully Conclude Six-Year Discovery and Development Collaboration 3Exelixis and GlaxoSmithKline Agree to Successfully Conclude Six-Year Discovery and Development Collaboration 4Exelixis and GlaxoSmithKline Agree to Successfully Conclude Six-Year Discovery and Development Collaboration 5
... reagent for Virus isolation ... unique water insoluble Elastomeric ... and chaotropes; Engineered to ... viruses while preserving infectivity; ...
Handles samples from from 75l to 150l...
PKA Sampler Kit 10 mu g each...
Chaperone Sampler Kit 10 mu g each...
Biology Products: