| 26 | The River Mersey : fact file |
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| 27 | The Tees catchment (river factfiles) |
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| 28 | The Wear catchment (river factfiles) |
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| 29 | The tidal Thames : fact file |
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| 30 | Preventing the spread of crayfish plague in the South West |
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| 31 | The extent of phosphorus release in the Norfolk Broads |
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| 32 | The results of fish telemetry trails in the river Tawe estuary, 1991 |
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| 33 | The release of ammonium and phosphorus from the sediments of the River Ant and Barton Broad : interim report |
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| 34 | A litter assessment of two major tributaries of the Taff, the Cynon and the Rhondda : surveyed March - April 1990 |
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| 35 | The River Lark project Model Manual |
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| 36 | Flood defences : the Lower Witham strategy |
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| 37 | The river Aire conservation within the catchment : a summary of survey methods and information held on the wildlife of the river Aire catchment |
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| 38 | Fish found in the tidal Thames |
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| 39 | Beneath the town : safeguarding Bodmin from flooding |
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| 40 | Lake restoration : the role of biomanipulation : a one day seminar held in the Broads 18th March 1993 : organised by the National Rivers Authority and the Broads Authority |
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| 41 | The Tame catchment (NRA Severn-Trent 67) |
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| 42 | Study of the River Stour, Kent |
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| 43 | The River Lark project Final Report |
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| 44 | The Nidd and Wharfe catchment (river factfiles) |
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| 45 | The Ribble fisheries management plan : a consultation document produced by the National Rivers Authority |
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| 46 | Conservation and recreation: the Wye challenge: volume 1: report of the River Wye project |
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| 47 | Estuarine fish survey 1989 : inferences on the pollution status of the Thames estuary |
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| 48 | Protecting your future : tackling flooding in the Thames Estuary through the 21st century |
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| 49 | A report on the 1992 strategic stock assessment survey of the upper Dewent catchment and the River Marron with particular reference to salmonids |
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| 50 | Response to questions posed by Northumbrian Water Authority, with special reference to the fisheries implications of the operation of the Kielder Water Scheme
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