501 | Lampetra |
502 | Spiraea salicifolia |
503 | Silene |
504 | Hippocrepis |
505 | Cladophora |
506 | Ceratium |
507 | Alopecurus |
508 | Isolepis |
509 | Bolboschoenus maritimus |
510 | Agrostis |
511 | Potamogeton x nitens |
512 | Eriocaulon aquaticum |
513 | Juncus subnodulosus |
514 | Laboratory analysis of water samples, Sem at Priors Farm, Hampshire Avon catchment |
515 | Campanula rotundifolia |
516 | Isoetes echinospora |
517 | Cichlidae |
518 | Gasterosteidae |
519 | Thalictrum flavum |
520 | Osmeridae |
521 | Wensum Demonstration Test Catchment's Monitoring kiosk E |
522 | Luzula |
523 | Lathraea squamaria |
524 | Whitacre-Shustoke Reservoir improvements. The sedimentary phosphorus content on the Lower Shustoke Reservoir |
525 | Cornus sanguinea |