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6726Investigating the feasibility of using neural networks to derive chlorophyll a prediction algorithms for case 2 waters
6727Temporal variability in chlorophyll-a : concentrations in the coastal environment : final report
6728Herbarium Image: Phalaris arundinacea
6729Herbarium Image: Orobanche elatior
6730An appraisal of the options for the structure of the water resources function in Thames Region NRA
6731Grey tide against green marsh : sea defences in East Anglia : synopsis of proceedings of conference held at Snape on 1st November 1991
6732Hampshire salmon seminar 5th October 1993
6733Biological river quality 1995 according to the general quality (GQA) scheme [map] : scale 1 : 750 000
6734Chemical river quality 1993-1995 according to the general quality assessment (GQA) scheme [map] : scale 1 : 750 000
6735An investigation into bathing water quality at Millendreath
6736Guide to groundwater vulnerability mapping in England and Wales
6737Investigation of existing conservation interests and potential furtherance opportunities
6738Locations of licensed abstractions and hydrometric stations
6739NRA regional, area and catchment boundaries
6740Development of marine phytoplankton methodology and quality assurance procedures : second draft
6741Impacts Of Nutrients In Estuaries - Phase 2 : Summary Report
6742Investigation into the impact of Henstridge sewage treatment works on the River Umber, North Devon
6743Sampling Littoral Diatoms in Lakes for Ecological Status Assessments: a Literature Review
6744Sediment input from coastal cliff erosion : interim report (literature review)
6745Code of practice - marine activities : part I : sea-going vessels
6746Code of practice - marine activities : part II : boats - type II-V
6747Herbarium Image: Callitriche obtusangula
6748A brief history of the River Stour navigation : 1705 to the present day
6749Ely Ouse catchment management plan : first annual review Jan 1994 to Jan 1996
6750Gipping/Stour catchment management plan : final plan