Marine jelly balls can combat global warming
November 17th, 2008 - 1:03 pm ICT by ANI - Send to a friend:Canberra, Nov 17 (ANI): Scientists have found a large number of marine jelly balls appearing off the Australian east coast that could be part of the planets mechanism for combating global warming.
The species were found by Mark Baird of the CSIRO, along with researchers from University of NSW (New South Wales), who conducted a marine survey last month that resulted in the discovery of a massive abundance of salps in the waters around Sydney.
According to a report in the Sydney Morning Herald, the jellyfish-like animals are known as salps and their main food is phytoplankton (marine algae), which absorbs the greenhouse gas carbon dioxide in the top level of the ocean, which in turn comes from the atmosphere.
They were up to 10 times what they were when first surveyed 70 years ago.
Different salp species are found around the world and attention is now being paid to what effect they might have on global warming.
They are also of interest because in the Southern Ocean near Antarctica, they are thought to be displacing krill, which is a key food source for many marine animals, including filter-feeding whales such as the southern right and humpback.
By eating the algae, the salps turn the algae and their carbon dioxide into faeces, which drops to the ocean floor.
They also take carbon to the floor with them when they die after a life cycle as short as only a couple of weeks.
This is thought to be a natural form of carbon sequestration similar to what scientists are trying to do with carbon capture from emission sources such as power stations.
According to Dr Baird, Australian salps, which grow to about half a centimeter, are biologically closer to vertebrates such as humans than to jellyfish because they have the rudiments of a primitive nervous system.
They are interesting because they are the fastest reproducing multi-celled animal on the planet and can double their numbers several times a day, he said. (ANI)
Related Stories
- Bering Sea may not remain productive fishery by 2100 due to ocean warming (Re-Issue) - January 14, 2008
- Bering Sea may not remain productive fishery by 2100 due to ocean warming - January 12, 2008
- Southern Oceans ability to soak up CO2 unaffected by changing winds - December 9, 2008
- Ocean is growing more acidic faster than previously thought - November 25, 2008
- Global warming caused marine mass extinction event 251 million years ago - November 27, 2007
- Global warming predictions may be overestimated - November 20, 2008
- Analysis of ancient global warming event provides clues to what the future may hold - February 17, 2008
- Researchers doubt global warming will be reduced by ocean fertilization - November 30, 2007
- Small sea creatures most at risk due to global warming - February 18, 2008
- Many unknown species may have already been wiped off the face of the Earth - June 13, 2008
- Marine organism bypasses photosynthesis for survival - March 13, 2008
- Marine organism bypasses photosynthesis for survival - March 13, 2008
- Marine algae may be future of biofuel development - January 5, 2009
- 90,000 yr old data suggests warming, CO2 and ocean currents are linked - October 5, 2008
- Ships are a major source of global warming pollutants - January 1, 2008
- carbon sequestration
- combating global warming
- emission sources
- faeces
- food source
- gas carbon dioxide
- greenhouse gas
- humpback
- key food
- krill
- marine algae
- marine animals
- marine survey
- mark baird
- new south wales
- primitive nervous system
- rudiments
- salps
- sydney morning herald
- university of nsw
Posted in Health Science, |

