Annual measurements of physical, chemical, and biological variables are taken in small to medium sized, mostly minimally disturbed lakes, situated across the country. Of the 108 lakes that are part of the Trend Station Lake monitoring programme, 20 are situated in AMAP area. The main aim of the monitoring programme is to document long-term changes related to global or regional change and human-generated stressors. To complement the Trend Station Lake monitoring programme, national lake surveys provide spatial data needed to determine regional patterns, and coupled with time-series data, changes in surface water quality. The National Lake Survey (the Surveillance Stations, re-sampled stations) programme for lake water quality, started in 2007 and results in data of all Swedish lake conditions. Each year some 800 new lakes are sampled to determine chemical and physical conditions; lakes are resampled at 6 year intevals. 4824 lakes are sampled in the country during a six-year sampling cycle, with 1270 situated in AMAP area. The variables included in the Trend Station Lake monitoring programme include water chemistry, fish, phytoplankton, macrophytes, zooplankton, and benthic invertebrates, whilst the National Lake Survey is focused solely on chemical and physical parameters.
Swedish University of Agricultural Sciences (SLU) Faculty of Natural Resources and Agricultural Sciences, Department of Aquatic Sciences and Assessment 750 07 Uppsala, Box 7050 Sweden
Jens Fölster (National Lakes Survey) Swedish University of Agricultural Sciences (SLU) Department of Aquatic Sciences and Assessment, Box 7050, 750 07 Uppsala, Sweden. Phone: +4618 6731 26 E-mail: email@example.com
Lars Sonesten (database) Phone: +4618-673007, 070-2562444 E-mail: firstname.lastname@example.org
Ulrika Stensdotter Blomberg, The Swedish Agency for Marine and Water Management, Box 11930 SE-40439 Göteborg Sweden, Phone:+46106986011 E-mail: email@example.com
Tove Lundeberg (AMAP representative) the Swedish Environmental Protection Agency S-106 48 Stockholm Sweden, Phone: +46106981611, E-mail: firstname.lastname@example.org
Eutrophication, Acidification, Temperature, pH, NH4, NO2-NO3, Tot-N, Tot-P, PO4, TOC, Si, Absorbance, Fe, Mn, Alkalinity, Ca, Mg, K, Na, SO4, Cl, F, and trace metals Cu, Zn, Cd, Pb, Cr, Ni, Co, V, Al, As, hydrochemistry, epiphyton, benthic fauna, time-serie,
Trend stations in AMAP area: Latnjajaure (X:758677 Y:161050), Abiskojaure (X:758208 Y:161749), Valkeajärvi (X:751252 Y:175433), Pahajärvi (X:742829 Y:183168), Bergträsket (X:733110 Y:182955), Brännträsket (X:728095 Y:175926), Norra Reivo (X:730091 Y:165102), Vuolgamjaure (X:728744 Y:162653), Louvvajaure (X:736804 Y:160569), Jutsajaure (X:744629 Y:167999), Njalakjaure (X:741340 Y:153576), Båtkåjaure (X:742442 Y:153530), Stor-Tjulträsket (X: 731799 Y: 151196), Storvindeln (X: 728271 Y: 157578), Vitträsket (X: 718150 Y: 168580), Stor-Arasjön (X: 716717 Y: 158596), Bjännsjön (X: 713404 Y: 172465), Ögerträsket (X: 712246 Y: 170866), Täftesträsket (X: 711365 Y: 171748), Sidensjön (X: 709218 Y: 169710), Svartvattnet (X: 706672 Y: 167201)
Data on water Chemistry and all biological parameters except fish is available at the Swedish University of Agricultural Sciences (SLU) Department of Aquatic Resources: (http://miljodata.slu.se/mvm/) and (http://info1.ma.slu.se/db.html).
Data host for fish data is the Department of Aquatic Resources (SLU):http://www.slu.se/institutioner/akvatiska-resurser/databaser/registersida/
A complete list of data hosts is found at https://www.havochvatten.se/hav/samordning--fakta/data--statistik/miljoovervakningsdata-datavardskap-och-atkomst-av-data.html
For more information contact Lars Sonesten, Department of Aquatic Sciences and Assessment, (SLU), Uppsala. Phone: +4618-673007, 070-2562444 E-mail: email@example.com
Data reports are available from the Department of Aquatic Sciences and Assessment (SLU) on SEPA webpage: http://www.slu.se/vatten-miljo?si=2A91C90C2D4301B9C53551C7BF191A50&rid=1662944351&sn=sluEPi6-prodSearchIndex
Reports are also found at the Swedish Agency for Marine and Water Management (SWAM): https://www.havochvatten.se/en
The Environmental Specimen Bank at the Swedish Museum of Natural History: http://www.nrm.se/en/forskningochsamlingar/miljoforskningochovervakning/miljoprovbanken.9000848.html
Fish samples are banked. Other biological samples are stored for a certain time, usually five or ten years.
Procedures and methods are described on SLU website: (http://info1.ma.slu.se/db.html)
Swedish Agency for Marine and Water Management (SWAM), Swedish EPA; Luleå Univ. of Technology (LTU), Applied Geology, SBN-GEOVET
SWAM, Swedish EPA
Comments and additional information on the National Lake Survey: The network is based on EMEP-squares and gives between 19 and 134 lakes sampled per county every year. Sampling at 0.5 - 2.0 m depth during fall circulation. Temperature, pH, NH4, NO2-NO3, Tot-N, Tot-P, PO4, TOC, Si, Absorbance (four wave lengths), Turbidity, Fe, Mn, Alkalinity, Ca, Mg, K, Na, SO4, Cl, F, and trace metals Cu, Cd, Pb, Cr, Ni, Co, Ni, V, Al are analysed.