26 | Invertebrates of Esthwaite in relation to development of fish farming in the South Basin |
27 | Mercury and methylmercury in the river Yare, Norfolk (1986 - 1992) : executive summary (OI/420/9/A) |
28 | An investigation into the presence of high levels of cadmium in sea-water samples from Mounts Bay, Cornwall |
29 | The faunal richness of headwater streams. Stage 3 : impact of agricultural activities. Volume 2 : appendices (Note 392) |
30 | Mercury and methylmercury in the river Yare, Norfolk (1986 - 1992) (OI/420/8/A annex) : annex to main report |
31 | Quality of Bathing Waters in Hampshire, Sussex, Kent and the Isle of Wight : 1993 Bathing Season : NRA Report DL/bw4/94 |
32 | Summary report on blue-green algae toxin analysis, Toxicity Assessment and reporting to the Environment Agency, 1998 |
33 | Remote sensing and baseline monitoring of the coastal waters of England and Wales 1992-1993 : a survey report [external version] |
34 | The potential of sedimentary phosphorus to sustain algal growth following reduction in external loading. Recycle pathways for phosphorus in lakes: evidence from large limnetic enclosures (Lund Tubes) |