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5176Chlorohyll and Phosphorus Classifications for UK Lakes
5177Investigating the feasibility of using neural networks to derive chlorophyll a prediction algorithms for case 2 waters
5178Herbarium Image: Phalaris arundinacea
5179Grey tide against green marsh : sea defences in East Anglia : synopsis of proceedings of conference held at Snape on 1st November 1991
5180Investigation of existing conservation interests and potential furtherance opportunities
5181NRA regional, area and catchment boundaries
5182Development of marine phytoplankton methodology and quality assurance procedures : second draft
5183Sediment input from coastal cliff erosion : interim report (literature review)
5184Code of practice - marine activities : part I : sea-going vessels
5185Code of practice - marine activities : part II : boats - type II-V
5186Herbarium Image: Callitriche obtusangula
5187A brief history of the River Stour navigation : 1705 to the present day
5188Harbour of Rye
5189Narrowboats on the Thames : useful hints and tips
5190NRA navigation strategy
5191Catchment drainage studies and flood plain identification : Cockshaw/Halgut Burn at Hexham : section 105 - C30/92 surveys
5192Bristol Avon Area fishery survey : Byde Mill Brook
5193Herbarium Image: Potamogeton alpinus
5194Second annual review of the Lower Bristol Avon catchment management plan
5195Second annual review of the Upper Bristol Avon catchment management plan
5196The River Avon and its tributaries near Malmesbury : river management studies
5197Eel and elver studies in the Severn : interim report (256/6/ST)
5198The Investigation and Specification of Flow Measurement Structure Design Features that Aid the Migration of Fish
5199Upper Nene structures : Elton : detailed appraisal report
5200Upper Nene structures : Stanwick : detailed appraisal report