1601 | River Valency and Crackington Streams catchment river water quality classification 1991 |
1602 | Herbarium Image: Spirodela polyrhiza |
1603 | Report on the management of the drainage regime within Exminster Marshes |
1604 | Anabaena, |
1605 | Herbarium Image: Potamogeton x nitens |
1606 | Diagnostic Drawing: Stromatolites, |
1607 | Factors affecting salmon in the sea |
1608 | Larva of non-biting midge |
1609 | Herbarium Image: Fumaria sp. |
1610 | A green consultation plan for Dorset : a summary of the Frome and Piddle and Poole Harbour and Purbeck Local Environment Agency Plan |
1611 | Background soil mineral nitrogen contents: OPTI-N, East Yorkshire, 2005 |
1612 | Mougeotia, |
1613 | Herbarium Image: Ranunculus peltatus |
1614 | Nassula, |
1615 | Cyanophyte, |
1616 | Hydrurus, |
1617 | Resting spore |
1618 | Green algae, |
1619 | Flow protection criteria for adult salmon - phase 3 case studies |
1620 | Fragilaria, |
1621 | Fisheries statistics 1994 : salmonid and freshwater fisheries statistics for England and Wales |
1622 | Herbarium Image: Oenanthe lachenalii |
1623 | Herbarium Image: Carex nigra |
1624 | Herbarium Image: Potamogeton filiformis |
1625 | Welsh sheep dip monitoring programme : 1999 |