Navigation Links
Fish migrate to safer environments
Date:3/1/2013

Research now reveals that fish can migrate to avoid the threat of being eaten. A new study from Lund University in Sweden shows that roach fish leave lakes and move into surrounding streams or wetlands, where they are safer from predators.

Every year, millions of animals migrate worldwide. In most cases, this is due to a shortage of food or other environmental factors. However, few research studies have focused on migration as a strategy to avoid predators. It is not easy to measure and quantify the risk of an animal being eaten.

"Our findings are therefore quite unique", says Ben Chapman, a researcher from the Department of Biology at Lund University.

In collaboration with Danish colleagues, the researchers at Lund University have published the results of their study. These show that fish, in this case roach, flee from a lake to surrounding streams and wetlands when there are a large number of cormorants hunting in the lake. Ben Chapman and his colleagues note that their findings are among the first evidence that the threat of predators can be a reason for seasonal migration in animals.

The researchers used an inventive method to track the fate of individual roach. They individually marked thousands of fish with a little chip resembling a barcode, and then went to the cormorants' resting places and scanned the earth for chips in the birds' excrement i.e. the remains of the fish that have passed through the birds' digestive systems. In this way, the researchers have been able to obtain large quantities of data on which fish were eaten. It emerged that it was mostly larger roach that fell victim to the cormorants.

The fieldwork has been carried out in the Danish lakes of Viborg and Loldrup on Jutland. In the next fieldwork season, the researchers plan to expand their work to include Krankesjn lake in southern Sweden and to investigate whether fish can change their migration patterns in response to increasing numb
'/>"/>

Contact: Ben Chapman
ben.chapman@biol.lu.se
46-736-643-608
Lund University
Source:Eurekalert

Page: 1 2

Related biology news :

1. Global warming has driven Europes mountain plants to migrate 2.7 meters upwards in 7 years
2. BYU study: Using a gun in bear encounters doesnt make you safer
3. New antibiotic could make food safer and cows healthier
4. Wayne State University researchers program targets safer river fishing, anglers health
5. Dual action polyclonal antibody may offer more effective, safer protection against osteoporosis
6. Safer spinach? Scientists technique dramatically reduces E. coli numbers
7. Salk scientists develop faster, safer method for producing stem cells
8. New technique could make cell-based immune therapies for cancer safer and more effective
9. Survival of the fittest -- ESF hosts session on the challenges of life in extreme environments
10. Newfound gene may help bacteria survive in extreme environments
11. Southampton to help develop new crops for water-stressed environments
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/9/2015)... , July 07, 2015 ... announced the addition of the "Biometrics for ... Forecasts 2015-2020" report to their offering. ... major contributor to this growth and the forecast ... billion in revenue for companies involved in delivering ...
(Date:7/9/2015)... Calif. , July 9, 2015 /PRNewswire/ ... leading developer of human interface solutions, today ... the industry,s first fully hardware encapsulated fingerprint ... secure authentication technology is literally off the ... and biometric matching within the fingerprint sensor ...
(Date:7/8/2015)... N.J. and NEW YORK , July 8, ... Guidepoint today announced BD & Guidepoint Mentor, ... with free access to Guidepoint,s expert network services. ... are developing cutting-edge technologies to improve healthcare delivery and ... research manager, each start-up entrepreneur will be able to ...
Breaking Biology News(10 mins):Global Banking Biometrics Market 2015-2020 - Market & Technology Analysis, Adoption Strategies and Forecasts 2Global Banking Biometrics Market 2015-2020 - Market & Technology Analysis, Adoption Strategies and Forecasts 3Synaptics Announces World's First Match-in-Sensor Fingerprint Authentication Technology 2Synaptics Announces World's First Match-in-Sensor Fingerprint Authentication Technology 3BD and Guidepoint Team to Connect Healthcare Start-up Companies With Business and Scientific Experts 2BD and Guidepoint Team to Connect Healthcare Start-up Companies With Business and Scientific Experts 3
... DNA holds the genetic code for all sorts of ... found that DNA,s code can similarly shape metallic structures. ... of gold nanoparticles tiny gold crystals that have many ... the Schenck Professor of Chemistry at the U. of I., ...
... minimally invasive techniques when operating in the abdomen. Instruments ... wall, and the organs are visualized using an endoscope. ... conventional surgery. A form of "minimally invasive intervention" could ... in this case the patients are buildings in need ...
... "Sound vibrations are transmitted to the inner ear via ... ossicles", the biologist Tanja Schulz-Mirbach explains how swim bladders ... in this way. The anterior part of the swim ... ear drum. Up to now the effects of the ...
Cached Biology News:Oh, my stars and hexagons! DNA code shapes gold nanoparticles 2Minimally invasive building renovation 2Minimally invasive building renovation 3Cichlid fish: How does the swim bladder affect hearing? 2
(Date:7/27/2015)... -- According to the new Market Research Report ... by Application (Biobanking, Regenerative Medicine, Drug Discovery), by Geography ( ... Asia-Pacific , Rest of the World) - ... was valued at $247.7 million in 2014, which is estimated ... CAGR of 18.2% between 2014 and 2019. Browse ...
(Date:7/27/2015)... 27, 2015 Junto Health, a company that ... and develop new technology solutions, today announced the launch ... a leader in health care policy consulting. Working together ... a collaborative innovation process while, at the same time, ... public policy, health care finance and the delivery of ...
(Date:7/27/2015)... ... ... Visual Assay was named as a finalist for the 53rd Annual R&D ... of the past year. More than 70 judges selected the finalists, including Visual ... at the 2015 R&D 100 Awards Dinner on November 13 at Caesars Palace in ...
(Date:7/25/2015)... ... July 25, 2015 , ... Technology leader ... precisely checks and adjusts the surface temperature of the measuring prism. This is ... industry, data traceability and documentation are key requirements. It is likely that no ...
Breaking Biology Technology:Global Biopreservation Media Market to be Worth $571.5 Million by 2019 2Global Biopreservation Media Market to be Worth $571.5 Million by 2019 3Junto Health Announces a Unique Partnership with Sachs Policy Group 2Junto Health Announces a Unique Partnership with Sachs Policy Group 3Junto Health Announces a Unique Partnership with Sachs Policy Group 4Visual Assay® Named Finalist in 53rd Annual R&D 100 Awards 2It’s T-Time for Refractometers: On-site Temperature Check Now Available 2
... The Netherlands, December 22 Dosage,recommendations for newborns being cared ... likely be based on more individual characteristics than,just body weight. ... Dutch Top,Institute Pharma in which Leiden University (Prof M. Danhof) ... represented. , Catherijne Knibbe, clinical pharmacologist ...
... Fla., Dec. 21 , www.bioheartinc.com , ... , A large quantity of stem cells can be obtained ... effects, quickly and cheaply. Adipose stem cells are capable of ... blood vessels. Lower limb ischemia is pain, often severe enough ...
... , , ANNAPOLIS, Md., Dec. 21 ... company developing medical countermeasures against biological and chemical threats, today ... Board of Directors, increasing the Board to eight members. ... a firm providing advisory services in business risk management, homeland ...
Cached Biology Technology:Research: Dosage of Morphine for ill Newborns Still too Imprecise 2Bioheart Makes Breakthrough in Critical Limb Ischemia Therapy with Stem Cells Obtained from Fat Tissue 2Bioheart Makes Breakthrough in Critical Limb Ischemia Therapy with Stem Cells Obtained from Fat Tissue 3Bioheart Makes Breakthrough in Critical Limb Ischemia Therapy with Stem Cells Obtained from Fat Tissue 4Bioheart Makes Breakthrough in Critical Limb Ischemia Therapy with Stem Cells Obtained from Fat Tissue 5PharmAthene Appoints Jeffrey W. Runge, M.D. to the Company's Board of Directors 2PharmAthene Appoints Jeffrey W. Runge, M.D. to the Company's Board of Directors 3