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:8/20/2015)... PLEASANTON, Calif. , Aug. 20, 2015 /PRNewswire/ ... focused on consumers that are active and healthy. ... used in the hospital environment to help improve ... released a video from the Wearable Technologies ... MD discussed new applications for wearables in healthcare.    ...
(Date:8/18/2015)... PRINCETON, N.J. , Aug. 18, 2015 ... be a key contributor to the Submission ... hosted by IRISS, a non-profit forum. Dedicated to ... IRISS provides a neutral platform for industry, ... to share information and work towards a ...
(Date:8/12/2015)... As the digital payment services ... advanced biometrics technology is accelerating beyond expectations.  While the ... using their credit cards, the digital currency, mobile payment ... services led by companies in the space such as ... (NASDAQ: GOOG ), Apple Inc. (NASDAQ: AAPL ...
Breaking Biology News(10 mins):Leaf Healthcare Releases Video from Wearable Technology Conference on New Applications for Wearables in the Hospital Environment 2Leaf Healthcare Releases Video from Wearable Technology Conference on New Applications for Wearables in the Hospital Environment 3Navitas, a Key Contributor in IRISS Forum Webinar 2Navitas, a Key Contributor in IRISS Forum Webinar 3Digital Wallet Devices & Mobile Payment Management Services Gain a Distinct Advantage in the Digital Payment Evolution as Demand Continues to Grow 2Digital Wallet Devices & Mobile Payment Management Services Gain a Distinct Advantage in the Digital Payment Evolution as Demand Continues to Grow 3Digital Wallet Devices & Mobile Payment Management Services Gain a Distinct Advantage in the Digital Payment Evolution as Demand Continues to Grow 4Digital Wallet Devices & Mobile Payment Management Services Gain a Distinct Advantage in the Digital Payment Evolution as Demand Continues to Grow 5Digital Wallet Devices & Mobile Payment Management Services Gain a Distinct Advantage in the Digital Payment Evolution as Demand Continues to Grow 6
... have a mixed reputation. Their delicate, colorful flowers and ... gardeners and growers. But the striking plants are often ... warm temperatures, high humidity, and fertilizer is required to ... recently published study by scientists Julia C. Brotton and ...
... tree native to North America, is native from northern ... the United States, where it grows abundantly along the ... and Texas. Popularity and consumer demand for pecans has ... while commercial production has expanded into many regions of ...
... (Mon., Nov. 2, 2009) -- The introduction of high-throughput ... the genetics of complex diseases. Instead of focusing only ... sample of individuals, the ability to accurately and efficiently genotype ... individual genes has resulted in genetic studies with greater statistical ...
Cached Biology News:For African violets, 'hands off' means healthier 2Sun or shade: Pecan leaves' photosynthetic light response evaluated 2High-throughput genotyping, protein purification featured in Cold Spring Harbor Protocols 2
(Date:8/27/2015)... - BIOREM Inc. (TSXV: BRM) ("Biorem" or "the Company") today announced ... 2015. Biorem,s complete second quarter financial statements and MD&A have been ... except earnings per shareThree-months ended , Six -months endedJune 30 , ... , 2014 Revenue , 4,709 , ... , 1,656 , 56 , 3,188 ...
(Date:8/27/2015)... -- GlassesOff (OTCBB: GLSO), a visual neuroscience technology ... vision system, announced today a partnership with eight-time All-Star, ... to develop a new mobile app designed for professional ... on-court performance. Vision is the inception of every ... ball or blocking a pass. The critical impact vision speed ...
(Date:8/27/2015)... ... August 27, 2015 , ... ... and expertly narrows down the product choices to a manageable shortlist of bench ... the list to models that fit best with the customer’s industry and application. ...
(Date:8/27/2015)... ... August 27, 2015 , ... Proove Biosciences, ... data on the relationship of genetics and hypertension at the International Academy ... in Vancouver, British Columbia, Canada. The event, which boasts an extensive overview of ...
Breaking Biology Technology:BIOREM Reports $718,000 Net Earnings for the Second Quarter 2BIOREM Reports $718,000 Net Earnings for the Second Quarter 3Eight-Time All-Star Chris Paul and GlassesOff Partner to Develop Innovative Mobile App Designed to Improve On-Court Performance 2Eight-Time All-Star Chris Paul and GlassesOff Partner to Develop Innovative Mobile App Designed to Improve On-Court Performance 3METTLER TOLEDO Updates Online Scale Selection Tool 2Proove Biosciences Presents Ground-Breaking Data on Genetics and Heart Disease at 20th World Congress on Heart Disease 2Proove Biosciences Presents Ground-Breaking Data on Genetics and Heart Disease at 20th World Congress on Heart Disease 3
... Laboratories,( http://www.microtestlabs.com ) has doubled their microbial ... an additional MicroSeq(R),Microbial Identification System., The ... that,enables Microtest technicians to more quickly and ... or easily identified., "With the purchase ...
... 3 Associates of Cape Cod,Inc. (ACC), a ... announced that the Fungitell(R) assay kit, for the,measurement ... CE marked, which enables distribution in the European ... included in both the Infectious,Disease Society of America,s ...
... iCAD, Inc. (Nasdaq:,ICAD), an industry-leading provider of ... Chief Executive Officer, and,Darlene Deptula-Hicks, Executive Vice President ... a corporate update at the Seventh Annual,Needham and ... 11, 2008 at 2:00 p.m., (Eastern Daylight Time) ...
Cached Biology Technology:Microtest Labs Doubles Microbial Identification, Analytical Services 2Fungitell(R) CE Marked, Referenced in IDSA and NCCN Guidelines and Added to EORTC-MSG Revised Definitions of Invasive Fungal Disease 2Fungitell(R) CE Marked, Referenced in IDSA and NCCN Guidelines and Added to EORTC-MSG Revised Definitions of Invasive Fungal Disease 3iCAD to Present at Seventh Annual Needham and Company Biotechnology and Medical Technology Conference 2
...
... ( Abpromise for all tested ... Synthetic peptide: IGPEVPDDRDFEPS conjugated to KLH, ... Human Decorin (fragment 36-49 of the ... Entrez GeneID: 1634 ...
...
... all Programmable and Digital Orbital Shaker. Our durable, ... to make every day use even easier. This ... up to 4 different programs. Its easy recall ... Furthermore, the VSOS-4P has a pulse operation for ...
Biology Products: