426 | Response to questions posed by Northumbrian Water Authority, with special reference to the fisheries implications of the operation of the Kielder Water Scheme
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427 | A map of the Queen Elizabeth National Park and the area in which the IBP L. George team were situated from late 1966 to 1972. |
428 | The effects of ammonia in discharges from Hogsmill STW on the water quality of the River Thames at Teddington : Summer 1990 an update |
429 | 1995 drought report : a report on the severity of the drought of 1995 and its effect in the Severn and Trent catchments |
430 | Pesticides in the aquatic environment : report of the National Rivers Authority, prepared by the National Centre for Toxic and Persistant Substances (TAPS) |
431 | The Role of Bankside Habitat in River Ecology: The importance of riparian and marginal vegetation on the distribution and abundance of aquatice invertebrates |
432 | The Movements of Atlantic Salmon (Salmo salar L.) and Sea Trout (Salmo trutta L.) Smolts in the Impounded Estuary of the R.Tawe, South Wales |
433 | The new waterlands? Proceedings of a one day seminar organised by the Sussex Wildlife Trust as part of the RSNC Wildlife Trusts Parnership Water For Wildlife campaign |
434 | Audit surveys in the NRA Thames region : a report on the surveys carried out in 1992/93 to assess the retention and enhancement of wildlife habitats during routine dredging operations |
435 | Measures to safeguard public water supplies : a second report to the Secretary of State for the Environment on the drought of 1995 |
436 | Preliminary assessment of the ability of Restormel fish counter to enumerate the passage of migratory salmonids on the River Fowey : Cornwall Area Fisheries Science Team |
437 | The Movements of Salmon (Salmo salar L.) and Sea Trout (Salmo trutta L.) Smolts in the Lower River and Estuary of the River Conwy, North Wales |
438 | Factual report on the boreholes and installation of standpipes for the combined investigations in connection with the East Ruston common SSSI Alleviation Scheme |
439 | A study of the mayfly parasite Spiriopsis adipophila, Arvy and Peters (1972) (=Sprininella adipophila, Arvy and Delage 1966) in Ephemera danica from the River Pang, a tributary of the River Thames |
440 | Inferences on the pollution status of the Thames estuary from the macrobenthic community structure : National Rivers Authority Thames Region, Biology, Thames Estuary Benthic Programme |
441 | Warming to the idea : meeting the challenge of climate change in the South West : summary report : south west region climate change impacts scoping study |
442 | Assessment of Ivybridge mobile monitoring station and investigation of the water quality of the River Erme and the effect of Ivybridge Sewage Treatment works final effluent |
443 | Investigations into the status of fisheries, biological and water quality in the River Pelenna catchment, prior to the treatment of discharges from abandoned coal mines : PL/EAW/95/3 |
444 | Meiofaunal assemblages of the Thames Estuary, April 1989-March 1990 : modules I-III : a study of the meiofaunal communities present in sediment samples collected by the National Rivers Authority, Thames Region |
445 | Survey of the biological quality of creek systems in the outer Thames Estuary, with special reference to the impact of STW and landfill site discharges |
446 | The behaviour of adult salmon (Salmo salar L.) in the River Tay as determined by radio telemetry |
447 | Darwell Transfer Scheme. Final Report Part II. Location of the draw-off tower in the Darwell Reservoir |
448 | Radioactivity in the environment : a summary and radiological assessment of the Environment Agency's monitoring programmes : report for 1996 |
449 | The biology of the sea trout. Summary of a symposium held at Plas Menai 24-26 October 1984 |
450 | A strategy for the management of the new South East Area Biology Team across a dual location following restructuring |