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The Invertebrate Fauna
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adults Altquhur Burn Ancylus fluviatilis aquatic average Baetis Balfron Blane Water Blanefield bottom fauna Brown Trout Carron Coleoptera common species Crustacea current is slow Diptera downstream Drymen Ecdyonurus edge elsewhere Maitland Endrick valley Ephemeroptera extreme lower reaches fish growing in silt habitats Hirudinea Hydracarina Hynes important invertebrate invertebrate fauna Killearn KILOMETRES FROM RIVER lacustris large numbers larvae Leuctra Loch Lomond Macan main river middle and upper middle reaches Miiller moss never abundant number of species occurs Oligochaeta Orthocladius Plecoptera population present recorded river at station river bed River Endrick River Leven RIVER MOUTH Fig samples sand Sea Trout sewage effluents sewage fungus shallow water silted gravel Simulium single specimen source to mouth spates spawning station 2 Woodend station 5 Drumtian Stone Loach stones in riffle stones in shallow streams stretch substrate summer temperature Three-spined Sticklebacks tributaries Trichoptera uncommon upstream weed growing whilst Woodend zonation