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:11/15/2018)... ... ... Firmex today released new research on merger and acquisition advisory fees prepared in ... worldwide to compile the third annual M&A Fee Guide 2018-19 report. Contributors BDO ... , Highlights in the 2018-19 Report:, , The latest data ...
(Date:11/15/2018)... ... November 14, 2018 , ... Researchers at the Icahn School ... analysis and publication of biomedical data from many months or years to mere ... primary method available to share biomedical research data has been through print publication ...
(Date:11/15/2018)... ... November 14, 2018 , ... Researchers from ... new scientific evidence on gene-disease relationships and how it supports medical management decisions ... in Atlanta, November 14-17. , Ambry has been selected by NSGC to ...
Breaking Biology News(10 mins):
(Date:11/20/2018)... ... , ... Dr. Steven White and Dr. Brad Haines invite new and existing ... This common infection, left untreated, can be destructive to oral and overall health. With ... in laser dentistry, Drs. White and Haines are uniquely qualified to diagnose and treat ...
(Date:11/13/2018)... ... November 12, 2018 , ... ... in Alpharetta and Sandy Springs, now welcomes new patients for MTM® Clear Aligners. ... comfortable alternative to traditional braces in the Sandy Springs and Alpharetta areas. Constantly ...
(Date:11/11/2018)... ... November 09, 2018 , ... Triple W, an innovator of connected health ... Honoree for DFree ®, the first health tech wearable device for incontinence ... go to the bathroom. The announcement was made during CES Unveiled New York, an ...
(Date:11/7/2018)... ... , ... Since September of this year, stem cell biotechnology ... tissue stem cell counting problem in stem cell medicine and the stem cell ... with new educational publications and presentations at clinical trial supply conferences, at meetings ...
Breaking Biology Technology:
Cached News: