1 | Phosphorus in the Thames catchment |
2 | Assessment of the Trophic Status of Rivers using Macrophytes - Evaluation of the Mean Trophic Rank |
3 | Assessment of the Trophic Status of Rivers using Macrophytes - supporting documentation for evaluation of the Mean Trophic Rank |
4 | Devon area internal report - measurement of dissolved oxygen levels in the Dart estuary - March 1996 |