4501 | Impact assessment of Meldon quarry on water quality in the West Okement river |
4502 | River Strat catchment river water quality classification 1991 |
4503 | Report on the quality of bathing waters 1990 |
4504 | Spring Carp Mortality Syndrome (SCMS) Transmission Study |
4505 | River catchment management plans : data report |
4506 | Hampshire salmon investigation report on salmon radio tracking 1991 |
4507 | Focus on Biodiversity Update 2002 |
4508 | R and D Strategy to Support Implementation of the Water Framework Directive - Preliminary Scoping Report |
4509 | Biological report of the 1991 coastal and estuarine survey from Crosby to Glasson |
4510 | River Corridor Surveys
|
4511 | Technical services available to NRA staff |
4512 | Land drainage consent report : investigation of the conservation input into land drainage consents |
4513 | Regional water resource review |
4514 | Guidance on the Assessment of Cause and Effect in Ecological Risk Assessment |
4515 | Flood defence levels of service : stage 2 annex B (Note 127) : land use assessment |
4516 | The rehabilitation of the River Taff |
4517 | Electron Microscope Image: Filament of Oscillatoria being ingested by the ciliate Nassula tumida |
4518 | The government's policy for a public regulatory body in a privatised water industry |
4519 | Bideford flood plan : public information leaflet |
4520 | Upper Lee catchment management plan : final plan : September 1994 |
4521 | Restoration of Riverine Trout Habitats - A Guidance Manual |
4522 | Land Use and Fisheries: Results of Sediment Trapping in Artificial Salmon Redds, Winter 1999/2000 |
4523 | Applictions of Artificial Intelligence in River Quality Surveys |
4524 | EU Habitats and Birds Directives. Guidance for the review of Environment Agency permissions: determining relevant permissions and "significant effect" |
4525 | River Ray, Wiltshire : fisheries survey 1989 |