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:
*Name:
*Comment:
*Email:


(Date:6/23/2017)... ARMONK, N.Y. and ITHACA, N.Y. ... IBM ) and Cornell University, a leader in dairy ... combined with bioinformatics designed to help reduce the chances ... breaches. With the onset of this dairy project, Cornell ... the Consortium for Sequencing the Food Supply Chain, a ...
(Date:6/14/2017)... PARIS , June 15, 2017  IBM (NYSE: IBM ... the international tech event dedicated to developing collaboration between startups ... on June 15-17. During the event, nine startups will ... deliver value in various industries. ... in the international market, with a 30 percent increase in ...
(Date:5/23/2017)... 2017  Hunova, the first robotic gym for the rehabilitation and functional ... in Genoa, Italy . The first 30 robots will ... USA . The technology was developed and patented at ... IIT spin-off Movendo Technology thanks to a 10 million euro investment from ... click: ...
Breaking Biology News(10 mins):
(Date:6/23/2017)... ... 23, 2017 , ... Biova, LLC., the leader in water soluble egg membrane ... Dr. Henig will bring a wealth of scientific experience in the food, beverage, nutrition ... and Scientific Officer of four major global companies in the last 4 decades. ...
(Date:6/23/2017)... ... June 23, 2017 , ... ... announced the latest version of LimitLIS®, its rapidly growing Laboratory Information System. , ... user adoption, ensure installation integrity, and provide more customization options. Each of these ...
(Date:6/23/2017)... ... June 23, 2017 , ... Ken Hanson, a medical ... Physik Instrumente USA, have been selected as this year’s recipients of two top awards ... have been invited along with other honorees to accept their awards at a banquet ...
(Date:6/23/2017)... ... June 23, 2017 , ... ... of a redesigned, easier-to-navigate website for all six of their healthcare job ... nurses, dentists, pharmacists, physical and occupational therapists, and biotechnicians, DocCafe.com and the ...
Breaking Biology Technology:
Cached News: