| 451 | Freshwater migration of sea trout (Salmo trutta L.) in the river Tywi during 1988, 1989 and 1990 |
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| 452 | NRA Thames region : audit surveys 1991/92 : a report on the re-surveys of selected reaches of river following maintenance dredging |
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| 453 | Database and atlas of aquatic vascular plants in the British Isles : part 2 : distribution maps (352/2/N and Y) |
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| 454 | An overview of the IBP compound when building was finished (generator located in disused house in front). |
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| 455 | The Development of a Methodology to Assess Population Doses from Multiple Sources and Exposure Pathways of Radioactivity |
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| 456 | Light scattering in sewage effluent: a study of the effects of angle of scatter an common light sources |
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| 457 | Audit of priority species of rivers and wetlands : Black Bog in South Hampshire and the Isle of Wight |
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| 458 | Front Cover of A Key to the British Fresh- and Brackish-Water Gastropods, with Notes on their Ecology |
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| 459 | The faunal richness of headwater streams. Stage 3 : impact of agricultural activities. Volume 2 : appendices (Note 392) |
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| 460 | Guidance to agency officers on the provision of technically competent management (multiple sites) at licensed waste facilities |
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| 461 | An investigation into the best method to combine national and local data to develop site-specific critical loads |
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| 462 | Letter of confirmation of geophysical surveys made in conjunction between Professor G.E.G. Sargent and the FBA 1983-1987 |
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| 463 | Remote sensing and baseline monitoring of the coastal waters of England and Wales 1992-1993 : a survey report |
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| 464 | International Workshop On The Uses Of Backfill In Nuclear Waste Repositories, Carlsbad, New Mexico, Usa, May 1998 |
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| 465 | The River Conwy catchment management plan : action plan (bilingual) : 1995: Cynllun Gweithrediad Cynllun Rheoli Dalgylch yr Afon Conwy 1995 |
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| 466 | EU Habitats and Birds Directives. Guidance for the review of Environment Agency permissions: determining relevant permissions and "significant effect" |
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| 467 | List of R and D outputs September 1989 to September 1995 : the National Rivers Authority's R and D programme |
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| 468 | Audit of priority species of rivers and wetlands : Southern Damselfly Coenagrion mercuriale in South Hampshire and the Isle of Wight |
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| 469 | Possible replacements for the biochemical oxygen demand (BOD) test and suspended solids as measures of effluent and water quality |
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| 470 | Critical review of the proposals for a good practice guide on sustainability appraisal of regional planning guidance (DETR, August 1999) |
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| 471 | Scoping Study For Collaborative R and D Between The Environment Agency And L'agence De L'eau Seine Normandie |
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| 472 | Sea trout gene banks : the feasibility of developing and utilising gene banks for sea trout (salmo trutta) conservation |
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| 473 | Manor Wall and Landguard Fort sea defences, Felixstowe : part of the Southern Felixstowe coastal strategy option selection scoping consultation document |
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| 474 | The Menai Strait catchment management plan : action plan (bilingual) : Cynllun Rheoli Dalgylch Afon Menai; 1995 Cynllun Gweithredu |
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| 475 | Summary report on blue-green algae toxin analysis, Toxicity Assessment and reporting to the Environment Agency, 1998 |
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