National Electrofishing Programme for Scotland Fish Counts ...

• Main Author: Faye, Jackson
• Format: Article in Journal/Newspaper
• Language: English
• Published: Marine Scotland Science 2019
• Subjects: Fish abundance in water bodies; Atlantic salmon
• Online Access: https://dx.doi.org/10.7489/12201-2; https://data.marine.gov.scot/dataset/national-electrofishing-programme-scotland-fish-counts-0

Marine Scotland established a programme of research to assess the status of wild Atlantic salmon from electrofishing data. This included the development of the National Electrofishing Programme for Scotland (NEPS), a generalised random tessellation stratified (GRTS) survey design. The sample frame (the rivers on which samples can fall) includes all rivers below impassable barriers which contain salmon fisheries and can be sampled by wading and electrofishing. NEPS protocols dictate that all species captured during the electrofishing survey should be recorded. This dataset includes counts of salmon (the focus species) and other fish caught by electrofishing as part of the National Electrofishing Programme for Scotland (NEPS). NEPS electrofishing surveys were carried out in 2018, 2019 and 2021. The sample frame and survey design changed between 2019 and 2021. Counts are provided for each species and run (pass). Salmon and trout are further separated by lifestage (fry and parr). Site-visit information (site ... : This dataset includes counts of salmon (the focus species) and other fish caught by electrofishing as part of the National Electrofishing Programme for Scotland (NEPS: https://www.gov.scot/publications/national-electrofishing-programme-for-scotland/). Counts are provided for each species and run (pass). Salmon and trout are further separated by lifestage (fry and parr). Site-visit information (site name, Easting, Northing, date fished and area fished) is also provided. Substantial quality control has been undertaken on the salmon dataset, with less quality control undertaken on trout, eels and other fish species which have not yet been analysed by MSS. Raw data from NEPS are stored in both the Marine Scotland Science FishObs database (2018-2021) and the Scottish Fisheries Coordination Centre database (SFCC, 2018 only). Substantial data manipulation has been undertaken to harmonise data exports to provide this DOI dataset to underpin further analysis. For full details of the NEPS sample frame (rivers where ...