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:3/18/2015)... 2015 As mobile payments become more ... wallets and apps continue to be introduced into the market ... mobile payment industry in focus today are:  NXT-ID, Inc. (NASDAQ: ... BABA ), Apple Inc. (NASDAQ: AAPL ), ... (NASDAQ: FB ) NXT-ID, Inc. (NASDAQ: ...
(Date:3/17/2015)... March 17, 2015 Emotient, the leader ... today announced general availability of Emotient Analytics ... the analysis of facial expressions. The system analyzes ... content, products and services. It delivers audience response ... sentiment - as derived from facial evidence of ...
(Date:3/16/2015)... 2015 Between 16 and ... groundbreaking innovations in biometric identification at the CeBIT ...      (Photo: http://photos.prnewswire.com/prnh/20150316/735333 ) ... well at the forefront: the company,s all new ... Germany . BiometricGate is the ...
Breaking Biology News(10 mins):Revolutionary Smart Wallet & Mobile Payment Choices Change the Game for Consumers - Company Begins Shipping Newest Digital Wallet to Customers 2Revolutionary Smart Wallet & Mobile Payment Choices Change the Game for Consumers - Company Begins Shipping Newest Digital Wallet to Customers 3Revolutionary Smart Wallet & Mobile Payment Choices Change the Game for Consumers - Company Begins Shipping Newest Digital Wallet to Customers 4Revolutionary Smart Wallet & Mobile Payment Choices Change the Game for Consumers - Company Begins Shipping Newest Digital Wallet to Customers 5Revolutionary Smart Wallet & Mobile Payment Choices Change the Game for Consumers - Company Begins Shipping Newest Digital Wallet to Customers 6New Emotient Web Service Measures Audience Response Using On-Demand Facial Expression Analysis 2New Emotient Web Service Measures Audience Response Using On-Demand Facial Expression Analysis 3New Emotient Web Service Measures Audience Response Using On-Demand Facial Expression Analysis 4DERMALOG Presents its Latest Biometric Innovations at the Hannover CeBIT Exhibition, 16 - 20 March 2015 2DERMALOG Presents its Latest Biometric Innovations at the Hannover CeBIT Exhibition, 16 - 20 March 2015 3
(Date:4/1/2015)... NEW YORK , April 1, 2015 ... biopharmaceutical company advancing protein biologic therapies and oncology ... the Company,s 2014 achievements and a strategic update ... progress the Company has made in the areas ... its MuGard programs, the FDA clearance of the ...
(Date:4/1/2015)... 1, 2015  Spherix Incorporated (Nasdaq: SPEX ... fostering and monetization of intellectual property, today announced ... full service global investment bank specializing in micro, ... note featuring Spherix. The report, authored ... Analyst at Chardan, was published on March 31, ...
(Date:4/1/2015)... (PRWEB) April 01, 2015 Earlier this ... a vibrant life sciences industry association that represents research-based ... members. , Jonathan Parker, AJO’s Vice President of ... Dinner in February, an event that attracted over 750 ... Don Wright, a 73 year old cancer survivor shared ...
(Date:3/31/2015)... -- CytoSorbents Corporation (NASDAQ CM: CTSO), a critical ... critically-ill and cardiac surgery patients in multiple countries ... results for the fiscal year ending December 31, ... were a record $3.1M, an increase of $2.3M ... $0.8M Highlights for the Year Ending December 31, ...
Breaking Biology Technology:PlasmaTech Biopharmaceuticals Provides Strategic Update for 2015 and Review of 2014 Acheivements 2PlasmaTech Biopharmaceuticals Provides Strategic Update for 2015 and Review of 2014 Acheivements 3PlasmaTech Biopharmaceuticals Provides Strategic Update for 2015 and Review of 2014 Acheivements 4PlasmaTech Biopharmaceuticals Provides Strategic Update for 2015 and Review of 2014 Acheivements 5PlasmaTech Biopharmaceuticals Provides Strategic Update for 2015 and Review of 2014 Acheivements 6Chardan Capital Issues Industry Note Covering Spherix 2Chardan Capital Issues Industry Note Covering Spherix 3HR Consulting Firm, A.J. O'Connor Associates Joins BioNJ – The Vibrant 400 Member Strong Life Sciences Industry Association - and Attends its Annual Dinner 2CytoSorbents Reports Record 2014 Revenue 2CytoSorbents Reports Record 2014 Revenue 3CytoSorbents Reports Record 2014 Revenue 4CytoSorbents Reports Record 2014 Revenue 5CytoSorbents Reports Record 2014 Revenue 6CytoSorbents Reports Record 2014 Revenue 7CytoSorbents Reports Record 2014 Revenue 8CytoSorbents Reports Record 2014 Revenue 9CytoSorbents Reports Record 2014 Revenue 10CytoSorbents Reports Record 2014 Revenue 11
Cached News: