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3451Diagnostic Drawing: Cryptophyceae,
3452Diagnostic Drawing: Cyanobacteria,
3453Guardian of the water environment
3454Drought : the dry facts
3455Heptagenia fuscogrisea
3456South West Region Plan Summary 1991/1992
3457Preventing the spread of crayfish plague in the South West
3458Diagnostic Drawing: Cyanobacteria associated with tufa,
3459Electron Microscope Image: Asterionella parasitised by Chytrid microfungus
3460A map of the Queen Elizabeth National Park and the area in which the IBP L. George team were situated from late 1966 to 1972.
3461National Rivers Authority 1993/94 corporate plan and forward look to 1996/97 : summary
3462Daily topsoil mineral nitrogen: AC0116, Dumfries, 2011
3463Background soil mineral nitrogen: AC0101, Nottinghamshire, 2008
3464Past achievements, present activities, future vision : annual review and summary accounts 1994-95
3465Leven Estuary project : fisheries component, final report
3466Second annual review of the Seaton, Looe and Fowey catchment management plan
3467Water pollution incidents in England and Wales 1996
3468Development of a field test kit for blue-green algal toxins 1994 (348/6/A) : R and D draft final report
3469The 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)
3470Proposed scheme of charges in respect of discharges to controlled waters
3471Anglian region telemetry system : revised strategy for phases 2, 3 and 4.
3472Catchment drainage studies and flood plain identification : Lumley Park Burn and Herrington Burn : section 105 - C30/92 surveys
3473Water quality fact file 4/9
3474Water wise : awards for Sussex schools
3475Hogsmill catchment landscape assessment