476 | Entomology For Angler's Course (2009) 12 |
477 | Entomology For Angler's Course (2009) 13 |
478 | Entomology For Angler's Course (2009) 15 |
479 | Entomology For Angler's Course (2009) 16 |
480 | Entomology For Angler's Course (2009) 17 |
481 | Entomology For Angler's Course (2009) 18 |
482 | Entomology For Angler's Course (2009) 19 |
483 | Candidate substances requiring Environmental Quality Standards (EQS) |
484 | Deveoplment of a Framework for Assessing the Suitability of Controlled Landfills to Accept Disposal of Solid Low-Level Radioactive Waste: Principles Document |
485 | Metal contamination of sediments an statutory quality objectives |
486 | Further surveys to elucidate the distribution of the fine-lined pea mussel Pisidium tenuilineatum Stelfox, 1918 |
487 | Contaminated land and the water environment : report of the National Rivers Authority |
488 | Diversion and entrapment of fish at water intakes and outfalls (Report 1) |
489 | Conservation requirements of southern damselfly in chalkstream and fen habitats |
490 | Summary report on blue-green algae toxin analysis, Toxicity Assessment and reporting to the Environment Agency, 1998 |
491 | Crayfish conservation (378/8/N) : interim report for 1993 |
492 | Waterways Breeding Bird Survey: progress and population trends: 1998 |
493 | Scenarios for the operational implementation of remote sensing of snow by satellites : interim report (207/3/N) |
494 | The physical character of rivers and streams in the UK and Isle of Man |
495 | Data for reed litter decay and aquatic macroinvertebrates colonisation |
496 | Assessment of the distribution of Bembidion testaceum and reasons for its decline |
497 | Bioaccumulation as an approach for detection and monitoring of Red List trace organic contaminants (240/11/Y) : a literature review : interim report |
498 | National Centre for Toxic and Persistent Substances : business case |
499 | Review of Sea Trout Fecundity
|
500 | Algal Monitoring Report 1999. Report summarising freshwater (cyanobacterial) and marine microalgal monitoring during 1999 |