HOME >> BIOLOGY >> NEWS
Researchers use 3-D imaging system to unveil swimming behavior of microscopic plankton

From the surface, the ocean appears to be vast and uniform. But beneath the surface, tiny animals called zooplankton are swept into clusters and patches by ocean currents. The very survival of many zooplankton predators--from invertebrates to whales--and the success of fishermen catches can depend on their success at finding those patches.

For almost a century ocean scientists have suspected that these patches form when the zooplankton swim against the ocean currents. In all those years, however, an understanding of zooplankton swimming response to ocean currents has remained elusive, mainly due to the lack of technology to track the motions of the miniscule animals in the sea.

Now, an international team of scientists from Israel, the United States and Germany led by Amatzia Genin of the Hebrew University of Jerusalem has provided, for the first time, evidence of the remarkable dynamics responsible for the formation of zooplankton aggregations. The new findings indicate that zooplankton are passively drifting with the current, as their name implies ("planktos" translates to "drifting" in Greek), but only in the horizontal direction, not in the vertical.

The recent development of a 3-dimensional acoustic imaging system by Jules Jaffe of Scripps Institution of Oceanography at the University of California, San Diego, has opened the door for a team of researchers to track several hundred thousand individual zooplankton at two coastal sites in the Red Sea. The team includes Genin and his student Ruth Reef from the Hebrew University; Jaffe and Peter Franks from Scripps Institution of Oceanography at the University of California, San Diego; and Claudio Richter from the Center for Tropical Marine Ecology in Bremen, Germany.

Their findings, reported in the May 6 issue of the journal Science, show that these small animals effectively keep their depth by "treadmilling" against upwelling and downwelling currents at speeds of up to
'"/>

Contact: Mario Aguilera or Cindy Clark
scrippsnews@ucsd.edu
858-534-3624
University of California - San Diego
5-May-2005


Page: 1 2 3

Related biology news :

1. Researchers find pathway that controls cell size and division
2. Researchers watch antibiotics, bacteria meet at atomic level
3. Researchers discover gene responsible for Restless Legs Syndrome
4. Researchers witness natural selection at work in dramatic comeback of male butterflies
5. Researchers discover human embryonic stem cells are the ultimate perpetual fuel cell
6. Researchers use new approach to predict protein function
7. Researchers probe risks, benefits of folic acid fortification
8. Researchers identify genetic mutation that may alter tumor cell proliferation
9. Researchers discover method for identifying how cancer evades the immune system
10. Researchers use adult stem cells to create soft tissue
11. Researchers find gene that spurs development of the epididymis

Post Your Comments:
(Date:1/22/2015)... , Jan. 13, 2015 /PRNewswire/ - Today, FindBiometrics, the leading ... the launch of its new website design. "When ... its infancy", says Peter O,Neill , founder and CEO ... the industry needs involvement from the key players on a ...
(Date:1/22/2015)... Technology Showcase, Hall E -   EyeLock Inc. , a ... will showcase its EyeLock ID technology integrated in a 3D ... Oak Ridge National Laboratory (ORNL) at the 2015 ... authentication technology is being used to validate the driver and ...
(Date:1/22/2015)... , Jan. 16, 2015  A man-made form of insulin ... other mental capabilities in adults with mild cognitive impairment ... led by researchers at Wake Forest Baptist Medical Center. ... with amnesic mild cognitive impairment (MCI) or mild to ...
Breaking Biology News(10 mins):Identity Industry Leading Publication Debuts New Look As Biometrics Hit Mainstream 2EyeLock Debuts First Iris Authentication Technology Embedded in 3D Printed Automobile 2EyeLock Debuts First Iris Authentication Technology Embedded in 3D Printed Automobile 3Nasal Spray with Insulin Equivalent Shows Promise as Treatment for Adults with Mild Cognitive Impairment, Alzheimer's Dementia 2Nasal Spray with Insulin Equivalent Shows Promise as Treatment for Adults with Mild Cognitive Impairment, Alzheimer's Dementia 3
(Date:2/27/2015)... FamilyFarms Group is pleased to announce its ... Farms, received the 2015 Tomorrow’s Top Producer Horizon Award. ... of 35, who has demonstrated excellence in the business ... the Tomorrow's Top Producer Horizon Award. Every year I ... Award and learning from their experiences. It is truly ...
(Date:2/27/2015)... Feb. 27, 2015  Steep Hill, the industry leader ... internationally, intends to open a full service medical cannabis ... , bringing advanced scientific tools and methodology to ... Steep Hill is currently the only laboratory licensed by ... and contaminant testing in order to meet the recently ...
(Date:2/26/2015)... Feb. 26, 2015 S&P Capital IQ (MHFI) ... Report coverage on MabVax Therapeutics Holdings Inc . ... clinical stage biotechnology company focused on the development of ... in the treatment of cancer. MabVax has discovered a ... protective immune responses generated by patients who have been ...
(Date:2/26/2015)... VIEW, Calif. , Feb. 26, 2015  23andMe, ... of Kate Black as Privacy Officer and ... federal, and state privacy laws as well as health ... regulatory team, she will be responsible for reviewing, updating ... customers in the U.S. and abroad. She joined the ...
Breaking Biology Technology:Matt Sims Receives the 2015 Tomorrow’s Top Producer Horizon Award 2Steep Hill First to Receive Provisional Approval to Establish Laboratory Services for Cannabis Testing in State of New Mexico 2S&P Capital IQ Initiates Coverage on MabVax Therapeutics Holdings Inc. in S&P Capital IQ Factual Stock Reports 2S&P Capital IQ Initiates Coverage on MabVax Therapeutics Holdings Inc. in S&P Capital IQ Factual Stock Reports 3S&P Capital IQ Initiates Coverage on MabVax Therapeutics Holdings Inc. in S&P Capital IQ Factual Stock Reports 4S&P Capital IQ Initiates Coverage on MabVax Therapeutics Holdings Inc. in S&P Capital IQ Factual Stock Reports 523andMe Appoints Kate Black as Privacy Officer and Corporate Counsel 2
Cached News: