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476Preliminary assessment of the ability of Restormel fish counter to enumerate the passage of migratory salmonids on the River Fowey : Cornwall Area Fisheries Science Team
477The 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
478Report on the results of a comparison of data from two surveys of the microfauna of the wash carried out in 1991 and 1993
479Factual report on the boreholes and installation of standpipes for the combined investigations in connection with the East Ruston common SSSI Alleviation Scheme
480A 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
481Inferences on the pollution status of the Thames estuary from the macrobenthic community structure : National Rivers Authority Thames Region, Biology, Thames Estuary Benthic Programme
482A review of available information sources for assessing the hazards and risks of chemical substances in the environment. Final report : recommendations for the acquistion of certain sources of environmental data
483Warming to the idea : meeting the challenge of climate change in the South West : summary report : south west region climate change impacts scoping study
484A field guide to the British seaweeds : as required for assistance in the classification of water bodies under the Water Framework Directive
485Assessment 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
486Investigations 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
487Meiofaunal 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
488Survey of the biological quality of creek systems in the outer Thames Estuary, with special reference to the impact of STW and landfill site discharges
489The behaviour of adult salmon (Salmo salar L.) in the River Tay as determined by radio telemetry
490Darwell Transfer Scheme. Final Report Part II. Location of the draw-off tower in the Darwell Reservoir
491Radioactivity in the environment : a summary and radiological assessment of the Environment Agency's monitoring programmes : report for 1996
492The biology of the sea trout. Summary of a symposium held at Plas Menai 24-26 October 1984
493Time of travel for the Greadon Farm pollution incident on the Upper Torridge of 19th August 1997 (1997)
494A strategy for the management of the new South East Area Biology Team across a dual location following restructuring
495An estimated map of NO2 concentration in the Midlands region : a report produced for the Environment Agency
496The environmental impact of sewage discharges to the Salcombe Estuary, South Devon, from Anchor Watch, Cliff Raod, Salcombe
497The Use Of DNA Fingerprinting To Study The Population Dynamics Of Otters (Lutra Lutra) In Southern Britiain - A Feasibility Study
498Pesticides in the aquatic environment : regional data appendix : prepared by the National Centre for Toxic and Persistent Substances (TAPS)
499Investigation into the effect of sewage disinfection on the bioaccumulation of chloroform, bromoform, dibromochloromethane and dichlorobromomethane by fucoid seaweeds
500Saving water : on the right track : a summary of current water conservation initiatives in the UK January 1998