2. Applications of habitat data to fishery management Distribution and abundance of habitat for different life stages Barriers to migration; Waterfalls / dams Adult habitat; Deep pools / cover Spawning habitat; Glides / smaller substrates Fry habitat; Shallow / smaller substrates Parr habitat; Deeper / larger substrates Assessing habitat quality & condition Cover for fish; in-stream and bank structure Climate control; shading Pressures; impacts of Land and water use

3. In-stream cover Shelter & territories; physical cover from floods & predators Size of substrates – Roughness layer Interstitial spaces – subsurface layer Flow type Vegetation Large woody debris

5. Bank-side cover Undercut Draped vegetation Tree roots Rock Marginal vegetation Other

6. Typical habitat requirements Life StageSalmonBrown Trout Spawning Eggs Alevins 3+ m channel width Glide or riffle flow (35-80 cm/sˉ¹) Water depth 17-76 cm Substrate Golf–tennis ball (20- 100mm) Low fines (< 1 mm) 2.3 – 8 % Depth of substrate >15 – 25 cm < 3 m channel width Glide or riffle flow (15-75 cm/sˉ¹) Pea-tennis ball substrate size Low fines (< 1 mm) 8 – 12 % Depth of substrate >14 cm Fry (< 1 yr) < 20 cm depth Golf – tennis ball substrate size Shallow / broken water / Fast flow Golf ball – tennis ball substrate Shallow /medium flow / marginal cover Parr (=> 1 yr) 20 – 40 cm depth Tennis – football substrate Deeper / broken water / fast flow Variety of substrate Deeper / slower water Undercut banks / tree roots SmoltHabitat connectivity AdultDeep pools > 80 cm depthDeep water > 0.4 m depth Slow sustained flow Bank / bed / canopy cover

7. Habitat / River Sequence Juvenile Adult Spawn

8. Habitat / River Sequence Spawn Adult Juvenile

9. Adult pool habitat Spawning habitat Fry habitat Mixed juvenile habitat (0 – 1++)

10. Typical salmon habitat – moderate gradient Adult pool habitat Spawning habitat Fry habitat Mixed parr habitat (1 – 2+)

13. SFCC walkover Field surveys– Main components General observations Channel dimensions; Area of habitat Channel type; gradient / character In-stream cover; Flow & substrate types / LWD Bank cover; bank type / riparian vegetation / shade Point location observations O.S Grid refs; Survey start / end points Spawning; Area / type / condition Adult pools; Area / depth / cover Obstacles; type / height / fish passage Modifications; revetment / embankment / pollution