October 3. 2007

Statistics from Icelandic rivers for 2006 available

Statistics from Icelandic rivers for the 2006 fishing season have been processed and the main results are summarized in this english-version (pdf-file) of an annual report. This work is based on Gudbergsson (2007), Lax- og silungsveiðin 2006, a report from the Institute of Freshwater Fisheries (in Icelandic). Statistics have been compiled this way since 1974. Some older reports are available here.

September 5. 2006

The fourth salmon recaptured with DST micro

The Institute of Freshwater Fisheries in Iceland recaptured their fourth salmon with DST micro, on Friday September 1st.  The recapture took place at the release site in River Kidafellsá.  The salmon was one of the 300 tagged salmon smolts that were released in the spring of 2005.  Three salmon had already been recaptured two weeks earlier, so total of four salmon have been recaptured this summer.  The tag had recorded depth and temperature of the fish at one hour sampling interval during the whole migratory route of the fish, which was 15 months.  All the recaptured DST micro tags never failed during the route, confirming the reliability of the tags.  The data from the tag comply with data from previous tags recaptured two weeks earlier, although greater depth dives can be seen in this tag. 

August 30. 2006

Three salmon recaptured with DST-micro tags

Depth (blue) and temperature (red) during one year of sea migration

In the spring of 2005, the Institute of Freshwater Fisheries in Iceland, in cooperation with the Star-Oddi company and the Laxeyri hatchery in Borgarfjörður Iceland, initiated a project designed for the release of salmon smolts tagged with DST-micro tags in the river Kiðafellsá in west Iceland.  Data storage tags have been used in Iceland for several years for tagging of fish.  In 2005 the Star-Oddi company produced a new line of tags, DST-micro that allows for the first time tagging of large smolts (> 60 g.) .  The tag makes it possible to measure temperatures and pressure (depth) at programmed time intervals. In June of 2005, 300 DST hatchery smolts were released in Kiðafellsa and additional 300 smolts in the spring of 2006.

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