Featured Research

from universities, journals, and other organizations

Radio transmitters to reveal the secrets of sea trout

Date:
May 10, 2011
Source:
University of Gothenburg
Summary:
By surgically inserting radio transmitters into 100 sea trout in Sweden, researchers hope to reveal the route the sea trout take when they migrate to sea. The researchers also wish to enlist the help of anglers in collecting fin samples so that they can analyze the kinship of trout from different parts waters.

By surgically inserting radio transmitters into 100 sea trout from the Halland river Himleån, Sweden, researchers from the University of Gothenburg hope to reveal the route the sea trout take when they migrate to sea. The researchers also wish to enlist the help of anglers in collecting fin samples so that they can analyse the kinship of trout from different parts waters.

Sea trout are highly regarded among anglers, and thanks to intensive fisheries conservation efforts they have become increasingly common. The trout reproduce in small rivers along the whole of the Swedish coast, and the eggs hatch in the spring. The fish then remain in the river for about two years before migrating out to sea.

"The environmental requirements of trout and their behaviour in the rivers where they are born have been studied for several decades, but we know very little about their adult lives at sea. With the aid of radio transmitters, we hope to be able to analyse how sea trout migrate and in what environments they move," says Johan Höjesjö at the Department of Zoology of the University of Gothenburg.

Knowledge of how local populations of sea trout mix in the sea is also lacking. It is important to be able to locate different populations and their spread from the point of view of fisheries conservation. The researchers will therefore also be studying the genetic kinship of trout along the coast. To obtain as broad a basis as possible, anglers along the west coast are being asked for the assistance in collecting fin samples.

"What we need is a piece of a fin, preferably the pectoral fin, around 5 x 5 millimetres, together with information on where the fish was caught and its size. It's fine to send the piece of fin taped onto a piece of paper in a franked envelope. A photograph would also be appreciated," says Höjesjö.

The fin samples should be sent to: Department of Zoology, University of Gothenburg, att: Johan Höjesjö, Medicinaregatan 18, 413 90 Gothenburg

Everyone who takes part in the study and gives the researchers their e-mail address will receive information about the results by e-mail.

The project is being directed by the University of Gothenburg is taking place in close cooperation with the Swedish Board of Fisheries, the Swedish Angling and Fish Conservation Association and several coastal municipalities.


Story Source:

The above story is based on materials provided by University of Gothenburg. Note: Materials may be edited for content and length.


Cite This Page:

University of Gothenburg. "Radio transmitters to reveal the secrets of sea trout." ScienceDaily. ScienceDaily, 10 May 2011. <www.sciencedaily.com/releases/2011/05/110510074428.htm>.
University of Gothenburg. (2011, May 10). Radio transmitters to reveal the secrets of sea trout. ScienceDaily. Retrieved October 20, 2014 from www.sciencedaily.com/releases/2011/05/110510074428.htm
University of Gothenburg. "Radio transmitters to reveal the secrets of sea trout." ScienceDaily. www.sciencedaily.com/releases/2011/05/110510074428.htm (accessed October 20, 2014).

Share This



More Plants & Animals News

Monday, October 20, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Raw: Rare Lion Cubs Make Debut at Belgrade Zoo

Raw: Rare Lion Cubs Make Debut at Belgrade Zoo

AP (Oct. 17, 2014) — Two white lion cubs were born in Belgrade zoo three weeks ago. White lions are a rare mutation of a species found in South Africa and some cultures consider them divine. (Oct. 17) Video provided by AP
Powered by NewsLook.com
The Best Foods To Boost Your Mood

The Best Foods To Boost Your Mood

Buzz60 (Oct. 17, 2014) — Feeling down? Reach for the refrigerator, not the medicine cabinet! TC Newman (@PurpleTCNewman) shares some of the best foods to boost your mood. Video provided by Buzz60
Powered by NewsLook.com
Sweet Times for Hard Cider Makers

Sweet Times for Hard Cider Makers

AP (Oct. 16, 2014) — With hard cider making a hardcore comeback across the country, craft makers are trying to keep up with demand and apple growers are tapping a juicy new revenue stream. (Oct. 16) Video provided by AP
Powered by NewsLook.com
Meet Garfi the Angry Cat

Meet Garfi the Angry Cat

Buzz60 (Oct. 16, 2014) — Garfi is one frowny, feisty feline - downright angry! Ko Im (@koimtv) introduces us to the latest animal celebrity taking over the Internet. You can follow more of Garfi's adventures on Twitter (@MeetGarfi) and Facebook (Garfi). Video provided by Buzz60
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
 
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:  

Breaking News:

Strange & Offbeat Stories

 

Plants & Animals

Earth & Climate

Fossils & Ruins

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:  

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile iPhone Android Web
Follow Facebook Twitter Google+
Subscribe RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins