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12-05-2010, 09:30 AM #1
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The one that got away – shocking facts on salmon return rates
Issued by The Game & Wildlife Conservation Trust
The Game & Wildlife Conservation Trust’s groundbreaking Salmon & Trout Research Centre on the River Frome in Dorset has published an online salmon research report that reveals the shocking decline of adult Atlantic salmon returning to the river from the sea.
This is the 37th consecutive year that researchers have accurately recorded data on salmon activity in the river Frome. Significantly this long-term data provides concrete evidence about the dramatic decline of Atlantic salmon showing that gross numbers have declined from an average of 2600 in the 1970’s to just 750 in 2009.
The site at East Stoke offers unparalleled facilities to monitor both the adult salmon migrating upstream and the juveniles going downstream. In addition, by tagging individual fish with small Passive Integrated Transponders (PIT tags) factors affecting fish at the individual level can be determined, i.e. fresh water habitat. So far, more than 50,000 fish over a five year period have been tagged.
The Trust’s online salmon research report, offers fascinating insight into this detailed monitoring of the salmon and is the most comprehensive long-term record of salmon movement of any river in England and Wales.
The report gives an overview of the salmon research carried out to date and includes detailed graphs and information on the data from the adult salmon counter. Data from this research project will enable the Trust to identify all the critical factors that affect mortality such as river-site factors, and this should lead to better management of salmon stocks in rivers across the country. To view the Game & Wildlife Conservation Trust’s latest salmon research report, please visit the Trust’s website: Game & Wildlife Conservation Trust - Research & Surveys
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