Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

SalmoInvade to Study the Effects of Recreational Fishing on Salmonids

17.04.2014

An international group of scientists is to work with anglers to study how invasive fish species affect local fish populations.

“One of the aspects we plan to investigate is whether recreational fishing can act as protection for local populations of salmon and trout,” says project coordinator Professor Jörgen Johnsson of the Department of Biological and Environmental Sciences, University of Gothenburg.


Brook charr France

Photo: Gael Grenouillet


Tiger trout Newfoundland

Photo: Peter Westley

Around 10% of people in Sweden carry out some form of recreational fishing, making it one of the most popular leisure activities in the country. Such fishing is important also from an economic point of view, with an annual turnover of approximately SEK 2.5 billion.

Anglers to help scientists

A group of scientists from Sweden, Norway, Germany, France and Canada is to study the biological invasion of salmonids in Europe in the recently started European project SalmoInvade. The project will run for three years and will evaluate the effects of non-native salmon species in Europe, and study the social, economic and ecological mechanisms that affect their ability to invade.

Anglers throughout Europe are associated with the project, which will also study cultural differences between Scandinavia and continental Europe in the way salmonids are viewed as a resource. The project is multidisciplinary and the composition of the research group has thus been designed to provide biological, sociological and psychological expertise.

Competition from farmed fish

Scientists in the SalmoInvade project are also planning to investigate whether escaped or released farmed fish can out-compete native populations of salmonids. Farmed fish have been genetically modified and they often have the property of eating a lot and eating rapidly. This may lead to less food being available for the native population.

“Scientists would like to determine the conditions in which the farmed fish will out-compete the wild population. This is one of the issues we are going to study,” says Jörgen Johnsson.

Recreational fishing to protect wild salmon?

Anglers often prefer the fish to be large, and this may help to protect wild salmon, for example where rapidly growing farmed fish are found together with a wild population. In addition, farmed fish often behave less circumspectly than wild fish, and probably end up getting caught more often.

says Jörgen Johnsson. Angling clubs throughout Europe are taking part in the project, including Sportfiskarna Region Väst at Delsjön in Gothenburg.

“The experiments in Gothenburg will actively involve anglers from western Sweden, and we plan to use their special knowledge. This is a unique collaboration and we are eagerly looking forward to it,” says Jörgen Johnsson

The goal of SalmoInvade is to develop policy guidelines for the management of invasions of salmonids in Europe.

Contact:
Professor Jörgen Johnsson, Department of Biological and Environmental Sciences, University of Gothenburg.
Tel.: +46 31 786 3665, Mobile: +46 73 778 0375
E-mail: jorgen.johnsson@bioenv.gu.se

Weitere Informationen:

http://science.gu.se/english/News/News_detail/?languageId=100001&contentId=1...

Carina Eliasson | idw - Informationsdienst Wissenschaft
Further information:
http://www.gu.se

More articles from Ecology, The Environment and Conservation:

nachricht Despite government claims, orangutan populations have not increased. Call for better monitoring
06.11.2018 | Deutsches Zentrum für integrative Biodiversitätsforschung (iDiv) Halle-Jena-Leipzig

nachricht Increasing frequency of ocean storms could alter kelp forest ecosystems
30.10.2018 | University of Virginia

All articles from Ecology, The Environment and Conservation >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: A Chip with Blood Vessels

Biochips have been developed at TU Wien (Vienna), on which tissue can be produced and examined. This allows supplying the tissue with different substances in a very controlled way.

Cultivating human cells in the Petri dish is not a big challenge today. Producing artificial tissue, however, permeated by fine blood vessels, is a much more...

Im Focus: A Leap Into Quantum Technology

Faster and secure data communication: This is the goal of a new joint project involving physicists from the University of Würzburg. The German Federal Ministry of Education and Research funds the project with 14.8 million euro.

In our digital world data security and secure communication are becoming more and more important. Quantum communication is a promising approach to achieve...

Im Focus: Research icebreaker Polarstern begins the Antarctic season

What does it look like below the ice shelf of the calved massive iceberg A68?

On Saturday, 10 November 2018, the research icebreaker Polarstern will leave its homeport of Bremerhaven, bound for Cape Town, South Africa.

Im Focus: Penn engineers develop ultrathin, ultralight 'nanocardboard'

When choosing materials to make something, trade-offs need to be made between a host of properties, such as thickness, stiffness and weight. Depending on the application in question, finding just the right balance is the difference between success and failure

Now, a team of Penn Engineers has demonstrated a new material they call "nanocardboard," an ultrathin equivalent of corrugated paper cardboard. A square...

Im Focus: Coping with errors in the quantum age

Physicists at ETH Zurich demonstrate how errors that occur during the manipulation of quantum system can be monitored and corrected on the fly

The field of quantum computation has seen tremendous progress in recent years. Bit by bit, quantum devices start to challenge conventional computers, at least...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

“3rd Conference on Laser Polishing – LaP 2018” Attracts International Experts and Users

09.11.2018 | Event News

On the brain’s ability to find the right direction

06.11.2018 | Event News

European Space Talks: Weltraumschrott – eine Gefahr für die Gesellschaft?

23.10.2018 | Event News

 
Latest News

Massive impact crater from a kilometer-wide iron meteorite discovered in Greenland

15.11.2018 | Earth Sciences

When electric fields make spins swirl

15.11.2018 | Physics and Astronomy

Discovery of a cool super-Earth

15.11.2018 | Physics and Astronomy

VideoLinks
Science & Research
Overview of more VideoLinks >>>