Publication - Research and analysis
National Electrofishing Programme for Scotland (NEPS) 2023: status of juvenile Atlantic salmon and brown trout populations
The National Electrofishing Programme for Scotland (NEPS) is a statistical survey of freshwater fish populations and the pressures affecting them in Scotland, particularly water quality and genetic introgression. This report presents the latest analysis including data from 2023.
Appendix 2
Table of NEPS 2023 strata grades for salmon and trout fry, parr and overall gradings (fry and parr for the species). The following abbreviations apply in the column labels for grades: S = salmon, T = trout, F = fry, P = parr and O = overall. Strata are ordered from south west to south east.
| Stratum | SF | SP | SO | TF | TP | TO |
|---|---|---|---|---|---|---|
| Annan | 3 | 3 | 3 | 2 | 3 | 2 |
| Nith | 2 | 3 | 2 | 2 | 3 | 2 |
| Galloway | 2 | 2 | 2 | 3 | 2 | 2 |
| Galloway_Blad_SAC | 2 | 2 | 2 | 3 | 2 | 2 |
| Ayrshire | 3 | 3 | 3 | 3 | 3 | 3 |
| Clyde | 3 | 3 | 3 | 3 | 3 | 3 |
| Lomond | 3 | 3 | 3 | 3 | 2 | 2 |
| Lomond_Endrick_SAC | 3 | 3 | 3 | 3 | 1 | 2 |
| Argyll | 3 | 3 | 3 | 3 | 2 | 2 |
| Lochaber | 3 | 2 | 2 | 3 | 3 | 3 |
| WesterRoss | 3 | 3 | 3 | 3 | 1 | 2 |
| WesterRoss_Gruin_SAC | 3 | 1 | 2 | 2 | 2 | 2 |
| SkyeLochalsh | 1 | 1 | 1 | 3 | 3 | 3 |
| OuterHebrides | 1 | 2 | 1 | 2 | 2 | 2 |
| OuterHebrides_Lang_SAC | 2 | 2 | 2 | 3 | 3 | 3 |
| OuterHebrides_NHarris_SAC | 1 | 1 | 1 | 3 | 3 | 3 |
| WestSutherland | 2 | 1 | 1 | 3 | 2 | 2 |
| WestSutherland_Laxford | 2 | 1 | 1 | 1 | 1 | 1 |
| Northern | 1 | 1 | 1 | 2 | 2 | 2 |
| Northern_Borgie_SAC | 3 | 1 | 2 | 1 | 3 | 2 |
| Northern_NavMall_SAC | 3 | 2 | 2 | 2 | 3 | 2 |
| Caithness | 2 | 3 | 2 | 1 | 1 | 1 |
| Caithness_BerriLang_SAC | 1 | 1 | 1 | 3 | 2 | 2 |
| Caithness_Thurso_SAC | 2 | 2 | 2 | 1 | 1 | 1 |
| Helmsdale | 1 | 1 | 1 | 3 | 1 | 2 |
| Brora | 3 | 1 | 2 | 3 | 3 | 3 |
| KyleSutherland | 1 | 1 | 1 | 3 | 3 | 3 |
| KyleSutherland_Oykel_SAC | 3 | 1 | 2 | 3 | 1 | 2 |
| KyleSutherland_ShinDam | 3 | 2 | 2 | 3 | 1 | 2 |
| Conon | 2 | 1 | 1 | 3 | 3 | 3 |
| Ness | 3 | 3 | 3 | 2 | 2 | 2 |
| Ness_Moriston_SAC | 2 | 2 | 2 | 2 | 2 | 2 |
| Beauly | 1 | 1 | 1 | 3 | 2 | 2 |
| NairnFindhornLossie | 3 | 2 | 2 | 3 | 3 | 3 |
| Spey | 1 | 1 | 1 | 1 | 1 | 1 |
| Spey_Dam | 3 | 3 | 3 | 3 | 3 | 3 |
| Deveron | 3 | 3 | 3 | 3 | 3 | 3 |
| Ugie | 3 | 3 | 3 | 3 | 3 | 3 |
| Ythan | 2 | 3 | 2 | 3 | 3 | 3 |
| Don | 3 | 3 | 3 | 3 | 3 | 3 |
| Dee | 2 | 2 | 2 | 3 | 2 | 2 |
| Dee_Baddoch | 3 | 2 | 2 | 3 | 1 | 2 |
| Dee_Girnock | 3 | 3 | 3 | 3 | 3 | 3 |
| Esk | 3 | 3 | 3 | 3 | 3 | 3 |
| Esk_South_SAC | 3 | 3 | 3 | 3 | 3 | 3 |
| Tay | 1 | 2 | 1 | 3 | 3 | 3 |
| Tay_Earn | 2 | 3 | 2 | 3 | 3 | 3 |
| Tay_Eden | 3 | 3 | 3 | 3 | 3 | 3 |
| Forth | 3 | 3 | 3 | 3 | 3 | 3 |
| Forth_Teith_SAC | 2 | 3 | 2 | 3 | 3 | 3 |
| Forth_DLCAAETAboveBarriers2021 | 3 | 3 | 3 | 2 | 3 | 2 |
| Forth_DLCAAETBelowBarriers2021 | 3 | 3 | 3 | 3 | 3 | 3 |
| Tweed | 3 | 3 | 3 | 1 | 3 | 2 |
| Tweed_Gala | 2 | 3 | 2 | 1 | 3 | 2 |
Contact
Email: neps@gov.scot