1 | Biological Assessment Methods: Controlling the Quality of Biological Data. Package 1 The variability of data used for assessing the biological condition of rivers |
2 | Guidance on the use of Bioassays in Ecological Risk Assessment |
3 | Medway Estuary fisheries survey 2000 : (incorporating the report for 1997 to 2000) |
4 | Macrophyte status of the Rivers Test and Itchen - Hampshire : summary report - October 1998 |