451 | Pilularia |
452 | Macroinvertebrates |
453 | Rhithrogena haarupi |
454 | Carex canescens |
455 | Trapa natans |
456 | Newby Beck Control Sub-Catchment (Sleagill Beck) Discharge and Water Quality |
457 | Isolepis setacea |
458 | Eden DTC Invertebrate Data |
459 | Impatiens parviflora |
460 | Bank-side monitoring of river hydrology and water quality, Sem at Cool's Cottage, Hampshire Avon catchment |
461 | Tofieldia pusilla |
462 | Carex pallescens |
463 | Dinoflegellata |
464 | Drosera |
465 | Leptophlebia vespertina |
466 | Ephemerellidae |
467 | Potamogeton obtusifolius |
468 | Neoergasilus japonicus |
469 | Esthwaite Water Seismic Survey 1983 |
470 | Aira caryophyllea |
471 | Laboratory analysis of water samples, Ebble upstream, Hampshire Avon catchment |
472 | Lythrum portula |
473 | Oenanthe lachenalii |
474 | Flyus swaticus |
475 | Lycopus europaeus |