Navigation Links
Better synchronization helps fish deal with predator threat

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
University of York

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:
(Date:11/17/2015)... , Nov. 17, 2015 Pressure BioSciences, ... in the development and sale of broadly enabling, pressure ... life sciences industry, today announced it has received gross ... $5 million Private Placement (the "Offering"), increasing the total ...  One or more additional closings are expected in the ...
(Date:11/12/2015)... 2015   Growing need for low-cost, easy ... been paving the way for use of biochemical ... analytes in clinical, agricultural, environmental, food and defense ... in medical applications, however, their adoption is increasing ... continuous emphasis on improving product quality and growing ...
(Date:11/9/2015)... DUBLIN , Nov. 09, 2015 /PRNewswire/ ... announced the addition of the "Global ... to their offering. --> ... "Global Law Enforcement Biometrics Market 2015-2019" ... Research and Markets ( ) ...
Breaking Biology News(10 mins):
(Date:11/24/2015)... 2015 /CNW/ - iCo Therapeutics ("iCo" or "the Company") ... for the quarter ended September 30, 2015. Amounts, ... and presented under International Financial Reporting Standards ("IFRS"). ... said Andrew Rae , President & CEO ... not only value enriching for this clinical program, ...
(Date:11/24/2015)... Tampa, Florida (PRWEB) , ... November 24, 2015 ... ... its biggest event of the year and one of the premier annual events ... USA, and ran from 8–11 November 2015, where ISPE hosted the largest number ...
(Date:11/24/2015)... Global, Inc., a worldwide provider of clinical research services headquartered in ... company has set a new quarterly earnings record in Q3 of ... for Q3 of 2014 to Q3 of 2015.   ... with the establishment of an Asia-Pacific office ... Kingdom and Mexico , with the ...
(Date:11/24/2015)... ... November 24, 2015 , ... This fall, global software solutions leader SAP and ... to develop and pitch their BIG ideas to improve health and wellness in their ... votes to win the title of SAP's Teen Innovator, an all-expenses paid trip to ...
Breaking Biology Technology: