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5576Foot and Mouth Disease Epidemic. Disposal of culled stock by burial : guidance and reference data for the protection of controlled waters
5577Salmon Migration and River Flow - Results of Salmon Radio Tracking Studies on Six Rivers in South West England: Technical Summary
5578Environmental quality standards to protect identified uses of controlled waters
5579Mount's Bay and Lands End streams catchment river water quality classification 1991
5580Herbarium Image: Luzula pilosa
5581Herbarium Image: Tofieldia pusilla
5582Herbarium Image: Luzula spicata
5583Herbarium Image: Tofieldia pusilla
5584Herbarium Image: Carex bigelowii
5585Herbarium Image: Carex arenaria
5586Herbarium Image: Elodea sp.
5587Herbarium Image: Carex aquatilis
5588Herbarium Image: Persicaria amphibia
5589Herbarium Image: Persicaria amphibia
5590Herbarium Image: Persicaria hydropiper
5591Herbarium Image: Eleocharis palustris
5592Herbarium Image: Persicaria amphibia
5593Herbarium Image: Schoenoplectus lacustris
5594Herbarium Image: Schoenoplectus tabernaemontani
5595A report on the use of pesticides at two Hampshire watercress farms
5596A field guide to the British seaweeds : as required for assistance in the classification of water bodies under the Water Framework Directive
5597Radiation Experiments on Aquatic Organisms
5598Impact Of Conifer Harvesting And Replanting On Upland Water Quality
5599Porth, Gluvian and Menalhyl catchment river water quality classification 1990
5600River Cober catchment river water quality classification 1991