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:1/22/2015)... Jan. 22, 2015   EyeLock, Inc. , a market leader ... Steve Gerber to the new role of Senior ... for leading development of mobile platforms and wearable solutions for ... and innovation in the semiconductor industry to his role at ...
(Date:12/24/2014)... , Dec. 23, 2014  Since its launch in December 2014, the ... eliminate the pain of trying to remember their usernames and ... fused to their smartphones. To assist people who have struggled ... company that created 1U and focuses on redefining identity, announced ...
(Date:12/22/2014)... , Dec. 22, 2014 Research and Markets ... of the "The Global Watermarking and Fingerprinting ... http://photos.prnewswire.com/prnh/20130307/600769 This ... media watermarking and fingerprinting markets. Watermarking aims to ...
Breaking Biology News(10 mins):EyeLock Names Steve Gerber as Senior Vice President of Mobile and Wearables 21U Offers Best Solution to the Username / Password Dilemma: For FREE! 21U Offers Best Solution to the Username / Password Dilemma: For FREE! 3The Global Watermarking and Fingerprinting Markets 2
... BioScience includes the following peer-reviewed articles: Molecular ... Patrick J. Tranel and David P. Horvath. , Modern ... development of herbicide-resistant crops and a better understanding of ... of tools, including genomics, could yield novel and still ...
... system response that is critical to the first stages ... an entirely different direction than most scientists had thought, ... University Medical Center. "This finding will have ... development," said Michael Gunn, M.D., an immunologist and cardiologist ...
... Christopher Fasano (Memorial Sloan-Kettering Cancer Center) and colleagues lend ... stem cells outside of the neurogenic niche. , ... Bmi-1, maintains forebrain neural stem cell self-renewal. Overexpression of ... increases stem cell self-renewal both in vitro and in ...
Cached Biology News:BioScience tip sheet, March 2009 2New origin found for a critical immune response 2
(Date:1/22/2015)... 22, 2015 Protocol Networks brings independent ... team of brand-neutral, independent consultants, Protocol Networks has recently ... that over the years, his company has attracted several ... of Plainfield, as well as others. With the success ...
(Date:1/22/2015)... (PRWEB) January 22, 2015 Dr. Greg Leyer ... 12th annual Scripps Natural Supplements Pre-Conference seminar on probiotics in ... is an annual continuing education conference for health care professionals. ... included the topic of probiotics in health. Dr. Leyer spoke ...
(Date:1/22/2015)... Nueva Jersey , 22 de enero de 2015  El ... abre hoy su llamada a nominaciones para 2015. Este ... ha hecho, o tiene el potencial para hacer, contribuciones ... nominaciones se aceptarán hasta el 15 de marzo de ...
(Date:1/22/2015)... 22, 2015  Derma Sciences, Inc. (Nasdaq: ... advanced wound care, announces that AMNIOEXCEL® and AMNIOMATRIX®, ... added to the Premier, Inc. Regenerative Skin Grafting ... the AMNIOEXCEL® and AMNIOMATRIX® product lines, which continue ...
Breaking Biology Technology:Protocol Networks Brings Independent Technology Consulting to the Constitution State 2El Dr. Paul Janssen Award for Biomedical Research emite su llamada a los nominados para 2015 2El Dr. Paul Janssen Award for Biomedical Research emite su llamada a los nominados para 2015 3El Dr. Paul Janssen Award for Biomedical Research emite su llamada a los nominados para 2015 4Derma Sciences Expands Access of its AMNIOTIC TISSUE Product Line with New Premier, Inc. Agreement 2Derma Sciences Expands Access of its AMNIOTIC TISSUE Product Line with New Premier, Inc. Agreement 3Derma Sciences Expands Access of its AMNIOTIC TISSUE Product Line with New Premier, Inc. Agreement 4Derma Sciences Expands Access of its AMNIOTIC TISSUE Product Line with New Premier, Inc. Agreement 5
... This release from ... -- or even whether -- invasive saltcedar should be controlled. The Society contends that ... and carefully weigh the impact of our decisions. , ... Lawrence, KS (PRWEB) August 24, 2009 -- Saltcedar (Tamarix spp.) is ...
... LEIDEN, The Netherlands and SEATTLE, August ... innovative products for hemostasis and,regenerative medicine, today announced the ... The financing round was led by new investor,Gilde Healthcare ... investor Index Ventures. Dirk Kersten from Gilde will join ...
... , SEATTLE, Aug. 21 Cell ... closing of its previously announced sale of $30 million of shares ... of its common stock in a registered offering to a single ... its shares of Series 2 Preferred Stock and to receive the ...
Cached Biology Technology:Invasive Saltcedar Triggers Lively Debate among Weed Scientists and Land Managers 2Invasive Saltcedar Triggers Lively Debate among Weed Scientists and Land Managers 3ProFibrix Raises US $11 Million (EUR 8 million) in Series B Financing 2ProFibrix Raises US $11 Million (EUR 8 million) in Series B Financing 3Cell Therapeutics, Inc. Announces Closing of Registered Offering of $30 Million of Preferred Stock and Warrants 2
Fluorescence Preserving Media, 100 mL...
... Kit, 40 reactions. Optimized for the ... PCR products with blunt or sticky ... offering consistently better signal-to-noise ratios and ... clones.Amplicons generated by proof-reading thermostable polymerases ...
... targets including proteins and to their modification ... antigens. A&Gs service is divided into ... 40 days (duration may vary slightly dependent ... I: Immunization, test bleed and fusion; $2,500 ...
... Synthetic peptide derived from an internal ... Specificity: Specific for the ~41 ... proteins. Recognizes both human WNT13A and ... Rat (positive controls: mouse WNT2B/WNT13-pCMV-tag2-transfected 293T ...
Biology Products: