1576 | Water resources strategic scheme development options : technical overview |
1577 | Idle and Torne catchment management plan : first annual review November 1996 - July 1998 |
1578 | Urban Waste Water Treatment Directive monitoring of designated and candidate sensitive areas (eutrophic) : macrophyte survey results 1995 |
1579 | Herbarium Image: Potamogeton gramineus |
1580 | Chlamydomonas, |
1581 | Upper Thames catchment management plan : action plan : August 1995 |
1582 | River Valency and Crackington Streams catchment river water quality classification 1991 |
1583 | Herbarium Image: Spirodela polyrhiza |
1584 | Report on the management of the drainage regime within Exminster Marshes |
1585 | Identification of Blue Green Algae of the British Isles Guide to the Genera and Use of the Interactive CD-ROM for Identification of Species |
1586 | Anabaena, |
1587 | Herbarium Image: Potamogeton x nitens |
1588 | Diagnostic Drawing: Stromatolites, |
1589 | Factors affecting salmon in the sea |
1590 | Larva of non-biting midge |
1591 | Herbarium Image: Fumaria sp. |
1592 | A green consultation plan for Dorset : a summary of the Frome and Piddle and Poole Harbour and Purbeck Local Environment Agency Plan |
1593 | Background soil mineral nitrogen contents: OPTI-N, East Yorkshire, 2005 |
1594 | Mougeotia, |
1595 | Herbarium Image: Ranunculus peltatus |
1596 | Nassula, |
1597 | Cyanophyte, |
1598 | Hydrurus, |
1599 | Resting spore |
1600 | Green algae, |