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Arctic charr and brown trout data from a compensatory nutrient enrichment experiment in an oligotrophicated hydropower reservoir

https://doi.org/10.5878/eyp9-2k93
This is a data set with length (fork lengt, mm), wet weight (g), condition (g/cm3x100) and age (+years) of Arctic charr (Salvelinus alpinus) and brown trout (Salmo trutta) from a whole lake experiment in two hydropower reservoirs in Jämtland region, Sweden. Nutrients (phosphorus and nitrogen) were added to Stor-Mjölkvattnet and upstream Burvattnet was a reference system. The study cover the years 2001-2009 and 2016, and nutrients were added to Stor-Mjölkvattnet during 8 consecutive years (2002-2009). For detailed method description, see Milbrink et al. (2025), https://doi.org/10.1080/02705060.2025.2511868Opens in a new tab
Download data and documentation (2 files / 167.06 KiB)

Data files

  • Milbrink_et_al_2025_DATA.tsv
    164.73 KiB

Documentation files

  • README.txt
    2.33 KiB

Citation and access

Data access level:

Creator/​Principal investigator(s):

Research principal:

Principal's reference number:

  • SLU.ma.2025.IÄ-1

Data contains personal data:

No

Citation:

License:

Language:

Method and outcome

Time period(s) investigated:

Data format/​data structure:

Species and taxons:

Data collection Biological tests

Mode of collection:

Biological tests

Description of the mode of collection:

Standardised test-fishing were performed from mid-August to early September in 2001-2009 and 2016 with nylon nets (length x height 30 x 1.5 m) of the Nordic type with 12 predetermined sections of different mesh sizes ranging from 5 to 55 mm knot to knot (Appelberg 2000; CEN 2005). Eight stations in each lake were randomly chosen largely covering the different depth zones of Stor-Mjölkvattnet and Burvattnet. The sampling intensity was 64 net nights in each lake each year. Appelberg M (2000) Swedish standard methods for sampling freshwater fish with multi-mesh gillnets. Fiskeriverket Information 2000:1. 36pp CEN (2005) Water quality – sampling of fish with multi-mesh gillnets. Ref. No. EN 14757:2005.

Time period(s) for data collection:

2001-09-05 - 2016-08-19

Temporal resolution:

1 year

Geographic coverage

Geographic location:

Geographic description:

Stor-Mjölkvattnet: SMHI lake register number 708479-138058, outlet coordinates (WGS84) 63.8502°N, 13.3767°E. Burvattnet: SMHI ake register number 709664-137890 (Lill-Burvattnet), 709904-137912 (Stor-Burvattnet), outlet coordinates (WGS84) 63.9558°N, 13.3343°E.

Administrative information

Responsible department/​unit:

Department of Aquatic Sciences and Assessment

Other research principals:

Funding

Funding agency:

Award number:

P 12565-1

Award title:

Restoration of impounded lakes: optimizing production of fish and plankton through balanced nutrient enrichment

Funding agency:

Award number:

FO2015-0060

Award title:

Restaurering av fiskbestånd skadade av vattenkraftsreglering – uppföljning av ett långtidsförsök

Topic and keywords

Standard för svensk indelning av forskningsämnen 2025:

Keywords:

Publications

Citation:

Milbrink, Göran, Rydin, Emil & Vrede, Tobias. (2025). Contrasting responses of Arctic charr and brown trout to compensatory nutrient enrichment in an oligotrophicated reservoir. Journal of Freshwater Ecology 40(1):2511868 https://doi.org/10.1080/02705060.2025.2511868Opens in a new tab

Contact

Tobias Vredetobias.vrede@slu.seOpens in a new tab

Metadata

Version 1
doris
slu
Published: