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:11/21/2016)... , Nov. 21, 2016   Neurotechnology , ... recognition technologies, today announced that the MegaMatcher On ... was submitted for the NIST Minutiae Interoperability ... all the mandatory steps of the evaluation protocol. ... a continuing test of fingerprint templates used to ...
(Date:11/16/2016)... , Nov. 16, 2016 Sensory Inc ... and security for consumer electronics, and VeriTran ... and retail industry, today announced a global partnership ... way to authenticate users of mobile banking and ... TrulySecure™ software which requires no specialized biometric ...
(Date:11/14/2016)... , Nov. 14, 2016  Based ... identification market, Frost & Sullivan recognizes FST ... Sullivan Award for Visionary Innovation Leadership. FST ... the biometric identification market by pioneering In ... solution for instant, seamless, and non-invasive verification. ...
Breaking Biology News(10 mins):
(Date:12/8/2016)...  Renova™ Therapeutics, a biotechnology company developing gene ... 2 diabetes, announced that it has obtained a ... vector developed in the laboratory of Professor ... The company plans to use this vector in ... "Early research has shown promise ...
(Date:12/8/2016)... ... December 08, 2016 , ... Opal Kelly, a ... device-to-computer interconnect using USB or PCI Express, announced the FOMD-ACV-A4, the company's first ... a small, thin, SODIMM-style module that fits a standard 204-pin SODIMM socket for ...
(Date:12/8/2016)... , Dec. 8, 2016  Anaconda BioMed S.L., ... development of the next generation neuro-thrombectomy system for the ... of Tudor G. Jovin, MD to join its Scientific ... as a strategic network of scientific and clinical experts ... development of the ANCD BRAIN ® to its ...
(Date:12/8/2016)... ... December 08, 2016 , ... Microbial genomics ... Awards. uBiome is one of just six company finalists in the Health & ... to uBiome, companies nominated as finalists in this year’s awards include Google, SpaceX, ...
Breaking Biology Technology:
Cached News: