Navigation Links
Better synchronization helps fish deal with predator threat
Date:5/25/2010

Fish alter their movements when under threat from predators to keep closer together and to help them to blend into the crowd, according to new research headed by scientists at the University of York.

Researchers in the York Centre for Complex Systems Analysis (YCCSA), based in the University's Department of Biology, used a combined computer simulation and experimental study of group behaviour to discover that shoaling fish co-ordinate their movements more frequently when under threat.

They 'update' their behaviour more often because by moving in a more coherent fashion with shoal members, individual fish are able to reduce the risk of being targeted by predators as the 'odd one out'.

The model predicts that higher updating frequency, caused by threat, leads to more synchronized group movement with both speed and nearest neighbour distributions becoming more uniform.

The research is published today in the latest issue of Proceedings of the Royal Society B. The study is supported by the Natural Environment Research Council.

The scientists suggest that the so-called 'oddity effect' could be the driving force for the behavioural changes. The computer model measures speed and distance distributions and provides a method of assessing stress levels of collectively grouping animals in a remotely collectable and non-obtrusive way.

Dr Jamie Wood, of YCCSA, said: "We find that as grouping animals feel more threatened, they monitor their fellows more frequently which results in better synchronization.

"Closely coordinated movement has the advantage that predators find it more difficult to single out a single target for their prey. Our work may help to explain how tightly bound fish shoals emerge and determine how agitated animals moving in groups are at any given moment."


'/>"/>

Contact: David Garner
dcg501@york.ac.uk
44-190-443-2153
University of York
Source:Eurekalert

Page: 1

Related biology news :

1. New study reveals ways to better inhibit blood clots
2. British Indian children have better mental health
3. Social context may be a better indicator of obesity disparities than race
4. Nude-colored hospital gowns could help doctors better detect hard-to-see symptoms
5. NIST, Maryland researchers COMMAND a better class of liposomes
6. Pressure-cooking algae into a better biofuel
7. Researchers find a better way to track stem cells
8. Bringing better grapes a step closer to reality
9. A better genetic test for autism
10. Model may offer better understanding of embryonic development
11. ARS study provides a better understanding of how mosquitoes find a host
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:3/28/2017)... , March 28, 2017 ... Biometrics), Hardware (Camera, Monitors, Servers, Storage Devices), Software (Video ... and Region - Global Forecast to 2022", published by ... in 2016 and is projected to reach USD 75.64 ... 2017 and 2022. The base year considered for the ...
(Date:3/23/2017)... The report "Gesture Recognition and Touchless Sensing Market by Technology (Touch-based ... to 2022", published by MarketsandMarkets, the market is expected to be worth USD ... 2022. Continue Reading ... ... ...
(Date:3/22/2017)... 2017 Vigilant Solutions , a vehicle ... agencies, announced today the appointment of retired FBI special ... safety business development. Mr. Sheridan brings more ... a focus on the aviation transportation sector, to his ... Mr. Sheridan served as the Aviation Liaison Agent Coordinator ...
Breaking Biology News(10 mins):
(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 ...
(Date:6/22/2017)... ... June 21, 2017 , ... Building on the success of the inaugural ... on the very latest developments in radical life extension. RAADfest combines cutting edge science ... the empowerment of personal development, making it the largest most comprehensive and inclusive super ...
(Date:6/22/2017)... , ... June 22, 2017 , ... ... results to clients throughout the biopharma and life sciences industries, continue to be ... is seeing. Tunnell’s Kip Wolf will be speaking on “The State of Information ...
(Date:6/20/2017)... ... 20, 2017 , ... CTNext , Connecticut’s go-to resource ... a Higher Education Entrepreneurship Advisory Committee to implement the recommendations of the master ... representatives from 35 higher education institutions across the state over the past six ...
Breaking Biology Technology: