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 Analytical lamps monitor air pollution in cities
26.05.2015 | Heraeus Noblelight GmbH

nachricht Nordic forests under pressure
26.05.2015 | International Institute for Applied Systems Analysis (IIASA)

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: Lasers are the key to mastering challenges in lightweight construction

Many joining and cutting processes are possible only with lasers. New technologies make it possible to manufacture metal components with hollow structures that are significantly lighter and yet just as stable as solid components. In addition, lasers can be used to combine various lightweight construction materials and steels with each other. The Fraunhofer Institute for Laser Technology ILT in Aachen is presenting a range of such solutions at the LASER World of Photonics trade fair from June 22 to 25, 2015 in Munich, Germany, (Hall A3, Stand 121).

Lightweight construction materials are popular: aluminum is used in the bodywork of cars, for example, and aircraft fuselages already consist in large part of...

Im Focus: Solid-state photonics goes extreme ultraviolet

Using ultrashort laser pulses, scientists in Max Planck Institute of Quantum Optics have demonstrated the emission of extreme ultraviolet radiation from thin dielectric films and have investigated the underlying mechanisms.

In 1961, only shortly after the invention of the first laser, scientists exposed silicon dioxide crystals (also known as quartz) to an intense ruby laser to...

Im Focus: Advance in regenerative medicine

The only professorship in Germany to date, one master's programme, one laboratory with worldwide unique equipment and the corresponding research results: The University of Würzburg is leading in the field of biofabrication.

Paul Dalton is presently the only professor of biofabrication in Germany. About a year ago, the Australian researcher relocated to the Würzburg department for...

Im Focus: Basel Physicists Develop Efficient Method of Signal Transmission from Nanocomponents

Physicists have developed an innovative method that could enable the efficient use of nanocomponents in electronic circuits. To achieve this, they have developed a layout in which a nanocomponent is connected to two electrical conductors, which uncouple the electrical signal in a highly efficient manner. The scientists at the Department of Physics and the Swiss Nanoscience Institute at the University of Basel have published their results in the scientific journal “Nature Communications” together with their colleagues from ETH Zurich.

Electronic components are becoming smaller and smaller. Components measuring just a few nanometers – the size of around ten atoms – are already being produced...

Im Focus: IoT-based Advanced Automobile Parking Navigation System

Development and implementation of an advanced automobile parking navigation platform for parking services

To fulfill the requirements of the industry, PolyU researchers developed the Advanced Automobile Parking Navigation Platform, which includes smart devices,...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

International symposium: trends in spatial analysis and modelling for a more sustainable land use

20.05.2015 | Event News

15th conference of the International Association of Colloid and Interface Scientists

18.05.2015 | Event News

EHFG 2015: Securing health in Europe. Balancing priorities, sharing responsibilities

12.05.2015 | Event News

 
Latest News

Quasi-sexual gene transfer drives genetic diversity of hot spring bacteria

29.05.2015 | Life Sciences

First Eastern Pacific tropical depression runs ahead of dawn

29.05.2015 | Earth Sciences

Donuts, math, and superdense teleportation of quantum information

29.05.2015 | Physics and Astronomy

VideoLinks
B2B-VideoLinks
More VideoLinks >>>