Baltic Sea Environment Proceedings No. 126B Salmon and Sea Trout Populations and Rivers in Sweden HELCOM assessment of salmon (Salmo salar) and sea trout (Salmo trutta) populations and habitats in rivers fl owing to the Baltic Sea. Helsinki Commission Baltic Marine Environment Protection Commission Published by: Helsinki Commission Katajanokanlaituri 6 B FI-00160 Helsinki Finland http://www.helcom.fi Authors Erik Degerman, Mikael Andersson, (Swedish Board of Fisheries), Håkan Häggström (Swedish Environmental Protection Agency) and Jens Persson (Swedish Board of Fisheries). Editing and layout of the contents: Miia Mannerla (HELCOM project staff) For bibliographic purposes this document should be cited as: HELCOM, 2011 Salmon and Sea Trout Populations and Rivers in Sweden – HELCOM assessment of salmon (Salmo salar) and sea trout (Salmo trutta) populations and habitats in rivers flowing to the Baltic Sea. Balt. Sea Environ. Proc. No. 126B. Information included in this publication or extracts thereof are free for citing on the condition that the complete reference of the publication is given as stated above. Copyright 2011 by the Baltic Marine Environment Protection Commission – Helsinki Commission – Layout of the cover: Leena Närhi, Bitdesign, Vantaa, Finland Cover photo: Erik Degerman Number of pages: 110 ISSN 0357-2994 This report has been funded through a co-financing agreement between the European Union (European Commission, Directorate General for Maritime Affairs and Fisheries) and HELCOM (Overview of the state of salmon (Salmo salar) and sea trout (Salmo trutta) populations in rivers flowing to the Baltic Sea – SI2.546540). HELCOM has the sole responsibility for this report and the European Commission is not responsible for any use that may be made of the information contained therein. 2 Contents 1. Introduction .............................................................................................................................. 5 2. Salmon populations and rivers in Sweden ............................................................................... 6 The River Alsterån ....................................................................................................................... 6 The River Byskeälven.................................................................................................................. 8 The River Dalälven .................................................................................................................... 10 The River Emån ........................................................................................................................ 12 The River Fylleån ...................................................................................................................... 15 The River Genevadsån .............................................................................................................. 17 The River Gideälven .................................................................................................................. 19 The River Göta älv .................................................................................................................... 20 The River Helgeån .................................................................................................................... 24 The River Himleån ..................................................................................................................... 26 The River Hörnån ...................................................................................................................... 28 The River Indalsälven ................................................................................................................ 30 The River Kalixälven ................................................................................................................. 31 The River Kungsbackaån .......................................................................................................... 34 The River Kågeälven ................................................................................................................. 36 The River Lagan ........................................................................................................................ 38 The River Ljungan ..................................................................................................................... 40 The River Ljusnan ..................................................................................................................... 43 The River Luleälven .................................................................................................................. 45 The River Löftaån ...................................................................................................................... 47 The River Lögdeälven ............................................................................................................... 48 The River Moälven .................................................................................................................... 50 The River Mörrumsån ................................................................................................................ 52 The River Nissan ....................................................................................................................... 54 The River Piteälven ................................................................................................................... 56 The River Rickleån .................................................................................................................... 59 The River Rolfsån ...................................................................................................................... 61 The River Råneälven ................................................................................................................. 63 The River Rönne å .................................................................................................................... 65 The River Sangisälven .............................................................................................................. 68 The River Skellefteälven ............................................................................................................ 70 The River Stensån ..................................................................................................................... 71 The River Suseån ...................................................................................................................... 73 The River Sävarån .................................................................................................................... 76 The River Testeboån ................................................................................................................. 78 3 The River Tornionjoki/Torneälven .............................................................................................. 80 The River Tvååkersån ............................................................................................................... 83 The River Törlan ........................................................................................................................ 85 The Rivers Umeälven/Vindelälven ............................................................................................. 87 The River Viskan ....................................................................................................................... 90 The River Åbyälven ................................................................................................................... 93 The River Ångermanälven ......................................................................................................... 95 The River Ätran ......................................................................................................................... 97 The River Öreälven ................................................................................................................... 99 3. Sea trout populations and rivers in Sweden ......................................................................... 101 Sea trout rivers of Main Basin and the Sound .......................................................................... 101 Sea trout rivers of the Bothnian Bay ........................................................................................ 103 Sea trout rivers of the Bothnian Sea ........................................................................................ 105 Sea trout streams of the Kattegat ............................................................................................ 107 4. Acknowledgements .............................................................................................................. 110 4 1. Introduction This Report gives a description of Swedish salmon and sea trout populations and rivers that empty into the Baltic Sea. The Report is based on the HELCOM SALAR Project that focused on the state of salmon (Salmo salar) and sea trout (Salmo trutta) populations in rivers flowing to the Baltic Sea. The deliveries of the HELCOM SALAR Project include a General Report on Baltic salmon and sea trout populations and rivers (BSEP 126A) as well as reports with individual descriptions of populations and rivers separately for Denmark, Estonia, Finland, Latvia, Lithuania, Poland, Russia and Sweden (BSEP 126B). The project also prepared a GIS map of salmon