Navigation Links
'Jellyfish joyride' a threat to the oceans
Date:6/9/2009

New research led by CSIRO Climate Adaptation Flagship and University of Queensland scientist, Dr Anthony Richardson, presents convincing evidence that this 'jellyfish joyride' is associated with over-fishing and excess nutrients from fertilisers and sewage.

"Dense jellyfish aggregations can be a natural feature of healthy ocean ecosystems, but a clear picture is now emerging of more severe and frequent jellyfish outbreaks worldwide," Dr Richardson says.

"In recent years, jellyfish blooms have been recorded in the Mediterranean, the Gulf of Mexico, the Black and Caspian Seas, the Northeast US coast, and particularly in Far East coastal waters.

"The most dramatic have been the outbreaks in the Sea of Japan involving the gargantuan Nomura jellyfish which can grow up to 2 m in diameter and weigh 200 kg."

The new research, by Dr Richardson and colleagues at the University of Miami, Swansea University and the University of the Western Cape, has been published in the international journal; Trends in Ecology and Evolution, in time for World Oceans Day on 8 June.

"Fish normally keep jellyfish in check through competition and predation but overfishing can destroy that balance," Dr Richardson says. "For example, off Namibia intense fishing has decimated sardine stocks and jellyfish have replaced them as the dominant species."

Climate change may favour some jellyfish species by increasing the availability of flagellates in surface waters a key jellyfish food source. Warmer oceans could also extend the distribution of many jellyfish species.

"Mounting evidence suggests that open-ocean ecosystems can flip from being dominated by fish, to being dominated by jellyfish," Dr Richardson says "This would have lasting ecological, economic and social consequences.

"We need to start managing the marine environment in a holistic and precautionary way to prevent more examples of what could be termed
'/>"/>

Contact: Edwina Hollander
edwina.hollander@csiro.au
61-893-336-569
CSIRO Australia
Source:Eurekalert  

Page: 1 2

Related biology news :

1. Fireflies and jellyfish help illuminate quest for cause of infertility
2. New online report on massive jellyfish swarms released
3. Scientists discover stinging truths about jellyfish blooms in the Bering Sea
4. Fossil record reveals elusive jellyfish more than 500 million years old
5. Invasive Australian jellyfish sighted in Gulf of Mexico in summer 2007
6. Scientists examine human behavior and the threat of disease
7. Jeepers creepers: Climate change threatens endangered honeycreepers
8. Scientists urge world leaders to respond cooperatively to Pacific Ocean threats
9. Wildlife trade threatens public health and ecosystems
10. Climate change threatens Lake Baikals unique biota
11. UIC biologists use DNA to study migration of threatened whale sharks
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
'Jellyfish joyride' a threat to the oceans
(Date:9/15/2014)... naturally across all kingdoms of life and constitute a ... of biological activities. The presence of halogen substituents in ... molecular properties. , One of the Holy ... late-stage, site-specific incorporation of a halogen atom into a ... (one of the most inert chemical bonds known in ...
(Date:9/15/2014)... Australia,s leading coral reef ecologists fears that reef biodiversity ... survival that we once thought. , In an international ... Centre of Excellence for Coral Reef Studies (Coral CoE) ... important species within reef ecosystems. , In coral reefs, ... jobs that keep the ecosystem safe and functioning. ...
(Date:9/15/2014)... of Science and Technology in Society in the College ... has won a 2014 National Science Foundation Faculty Early ... of creating a global nuclear emergency response plan. , ... Plant in March 2011 was a turning point in ... Three of the plant,s six nuclear reactors melted down ...
Breaking Biology News(10 mins):Pitt chemical biologist finds new halogenation enzyme 2Specialized species critical for reefs 2'Nuclear disasters don't respect national boundaries' 2
... State University have discovered a new method to speed ... advance that could play an important role in making ... an arrayed microchannel reactor and a "laminated architecture" in ... them, are stacked in parallel to provide a high ...
... the first time, completely characterized an important chemical reaction that ... areas. The team,s results indicate that computer models may be ... air quality (smoggy days) by as much as five to ... to people, animals and plants; is the primary ingredient of ...
... made by researchers at the Institut de recherches cliniques ... Noia, Director of the Mechanisms and Genetic Diversity research ... of Experimental Medicine . The team identified a mechanism ... the therapy of some types of lymphoma and leukemia. ...
Cached Biology News:Microreactor speeds nanotech particle production by 500 times 2Study improves accuracy of models for predicting ozone levels in urban areas 2Study improves accuracy of models for predicting ozone levels in urban areas 3Study improves accuracy of models for predicting ozone levels in urban areas 4A discovery could be important for the therapy of lymphoma and leukemia 2
(Date:9/15/2014)... September 16, 2014 Cancer ... and Adoptive T-cell Therapies is a new market ... on the three principal types of therapeutics that ... development in cancer immunotherapy (which is often called ... vaccines and Adoptive cellular immunotherapy. , The ...
(Date:9/15/2014)... Sept. 15, 2014  FlexTech Alliance today issued ... printed product demonstrators (demos) and a functional electronic ... with pre-proposals due on October 22, 2014 and ... proposals ultimately selected are provided by the US ... cost share by the proposing organization. ...
(Date:9/15/2014)... a patient has sepsis, a life-threatening condition in which ... often too fast for antibiotics to help. A new ... a team at Harvard,s Wyss Institute for Biologically Inspired ... , "Even with the best current treatments, sepsis ... 30 percent of the time," said Mike Super, Ph.D., ...
(Date:9/15/2014)... of researchers led by Northeastern University has developed ... junctions and a variety of nanocarbon structures in ... easily scalable, which will allow the researchers to ... use in applications ranging from electronic devices to ... to sports equipment. , Their findings were published ...
Breaking Biology Technology:Cancer Immunotherapy Market: Immune Checkpoint Inhibitors, Cancer Vaccines, and Adoptive T-cell Therapies 2Cancer Immunotherapy Market: Immune Checkpoint Inhibitors, Cancer Vaccines, and Adoptive T-cell Therapies 3Cancer Immunotherapy Market: Immune Checkpoint Inhibitors, Cancer Vaccines, and Adoptive T-cell Therapies 4Cancer Immunotherapy Market: Immune Checkpoint Inhibitors, Cancer Vaccines, and Adoptive T-cell Therapies 5FlexTech Alliance Issues 2015 Request for Proposals in Flexible, Printed Electronics 2Blood-cleansing biospleen device developed for sepsis therapy 2Blood-cleansing biospleen device developed for sepsis therapy 3Blood-cleansing biospleen device developed for sepsis therapy 4Northeastern University Researchers Develop Novel Method for Working with Nanotubes 2
... Cambrex (NYSE:,CBM), a leading life sciences company, announced today ... and Chief Executive Officer,and a member of the Cambrex ... Mack, President and Chief Executive Officer since 1995,and Chairman ... Company will,separate the positions of Board Chairman and CEO ...
... PRINCETON, N.J., May 15 Derma Sciences, Inc.,(OTC Bulletin ... today for the first quarter ended March 31, 2008. ... previous year, including sales,from the newly acquired First Aid ... due primarily to higher than expected,integration costs associated with ...
... supply of top-quality custom cosmesis, hires U.S. ... sales and marketing ... /PRNewswire/ - Touch,Bionics, developer of the i-LIMB Hand, the world,s ... the complete operations of LIVINGSKIN, the developer of the unique,and ...
Cached Biology Technology:Cambrex Appoints Steven M. Klosk as President and CEO 2Derma Sciences Reports First Quarter 2008 Results 2Derma Sciences Reports First Quarter 2008 Results 3Derma Sciences Reports First Quarter 2008 Results 4Derma Sciences Reports First Quarter 2008 Results 5Touch Bionics acquires LIVINGSKIN 2Touch Bionics acquires LIVINGSKIN 3
... CLS number is a ... to easily match Cornings ... no availability yet, please ... Sigma-Aldrich number (Z71,515-8) or ...
...
... a fast, easy to use, reproducible and ... are 15 times faster and 5 times ... 5%). ,The VoluPAC tubes enable the determination ... a cell suspension, resulting in absolute data ...
... Maximize the value of your ... We offer the support you need ... using the most up to date ... with the Gene Expression Profiling Service ...
Biology Products: