3351 | Herbarium Image: Vulpia bromoides and Aira caryophyllea |
3352 | Diagnostic Drawing: Coccolithophorids, |
3353 | Blue-green algal monitoring 1995-1997 |
3354 | Chlorella, |
3355 | NRA research and development programme - 1995/96 : schedule of on-going projects and proposed new starts |
3356 | Annual N2O measurements and associated data: AC0213, Northumberland, 2012 |
3357 | National Rivers Authority/Po River Basin Authority collaboration programme : (collection of documents) |
3358 | Sources of farm pollution and impact on river quality : interim report (001/6/W) |
3359 | Diagnostic Drawing: Cocolith types, |
3360 | Herbarium Image: Achillea ptarmica |
3361 | New style charging schemes for discharges and abstractions (Note 16) |
3362 | Proposed scheme of abstraction charges 1993-94 |
3363 | Flood risk management in North Wessex area : be prepared for flooding |
3364 | The National Rivers Authority employee attitude survey : summary |
3365 | The Use of a Hydroacoustic Counter for Assessing Salmon Stocks |
3366 | Factors affecting natural smolt production |
3367 | The disposal of sheep dip waste (R and D Report 11) : effects on water quality |
3368 | Dugesia tigrina, |
3369 | Herbarium Image: Potamogeton berchtoldii |
3370 | Diagnostic Drawing: Chaetophora and related genera, |
3371 | Geochemical process modelling : progress report for the period Jan - March 1993 (0295/11/A) |
3372 | Restoration of riverine fisheries habitats - progress report for period October 1991 - March 1992 |
3373 | Pesticides in the aquatic environment 1997 : executive summary |
3374 | Diagnostic Drawing: Codiaceae, |
3375 | Fertiliser application dates: AC0213, Northumberland, 2012 |