26 | The quality of rivers, canals and estuaries in England and Wales : report of the 1990 survey |
27 | Swords water quality study - phase 1 : modelling the water quality of the River Thames |
28 | Investigation into the chemicals present and entering the Stover Lake, Stover Country Park |
29 | Investigation into the impact of Henstridge sewage treatment works on the River Umber, North Devon |
30 | The impact of land use on salmonids (Report 30) : a study of the River Torridge catchment |
31 | Further surveys to elucidate the distribution of the fine-lined pea mussel Pisidium tenuilineatum Stelfox, 1918 |
32 | Report on the control of discharges of titanium dioxide waste to the Humber Estuary : main report |
33 | An investigation into the water quality of the River Waldon during wet weather |
34 | Rural sewage pollution in the '90s : report of the rural sewerage project 1993/4 |
35 | Report for Anglian Water, NRA Unit on the uses of the Orwell and the Stour Estuaries and the use of the mathematical model to derive long term consent limits for all inputs to Orwell Estuary |
36 | The effects of water resources management on the rivers Bure, Wensum and Nar in North Norfolk : Final project report to the National Rivers Authority. July 1994 |
37 | Identification of Blue Green Algae of the British Isles Guide to the Genera and Use of the Interactive CD-ROM for Identification of Species |
38 | Report on the results of a comparison of data from two surveys of the microfauna of the wash carried out in 1991 and 1993 |
39 | An assessment of cormorant depredation on stillwater coarse fish populations in the Lea and Colne valleys of the Thames catchment |
40 | An investigation of ecological change in the rivers Kennet and Lambourn. Report for the period April 1998-March 1999 |
41 | Investigation into the 1999 failure of the European Community bathing waters directive at Teignmouth Town Beach (2001) |
42 | Biological investigation of the impact of Ivybridge sewage treatment works discharge to the River Erme, May 1991 |
43 | A review of the quality and status of the Suffolk and Essex estuaries and coastal waters : volume 2 : final draft |
44 | A report on the 1993 strategic stock assessment survey of the Eamont catchment with particular reference to salmonid fish |
45 | An investigation of ecological change in the rivers Kennet and Lambourn. Progress report for the period April 1999-March 2000 |
46 | An Assessment of Cormorant Depredation on Stillwater Coarse Fish Populations in the Lea and Colne Valleys of the Thames Catchment |
47 | The Natural (Baseline) Quality Of Groundwaters In England And Wales: The Permo-Triassic Sandstones Of Cumbria, North-West England; |
48 | An investigation of ecological change in the rivers Kennet and Lambourn. Progress report for the period April 1999-March 2001 |
49 | Time of travel for the Greadon Farm pollution incident on the Upper Torridge of 19th August 1997 (1997) |
50 | Health effects of sea bathing (WMI 9021) - Phase III final report to the Department of the Environment |