Title: Cheshire stillwaters : summary results 1999 : Oak Mere, Betley Mere, Petty Pool, Tabley Mere, Norbury Mere, Combermere (2000)
Author: Environment Agency North West Region
Document Type: Monograph
Abstract:
During 1999, stillwaters monitored for the third year of the Stillwaters Monitoring Programme were Tabley Mere, Comber Mere and Norbury Mere. Surveys of Petty Pool and Betley Mere continued for a second and third year respectively after water quality concerns were highlighted in previous end-of-year reports. Oak Mere was also surveyed for the third year running due to its unusual ecology. Specific reasons highlighted by the Stillwaters Group for monitoring each stillwater were: OAK MERE: Conservation Status, Drought issue - water level falling, Appearance of algal blooms in recent years, Possible impact of mineral extraction, An oligotrophic still water; BETLEY MERE: Representative of marginal group of meres, Monitoring recommended for nitrate directive. Felt to be threatened state, Problems of point source pollution, Heavily eutrophicated, High phytoplankton crops threatening submerged plant population, Intense fish predation (fishery - angling club); PETTY POOL: Conservation status, Pollution problems in past, Crayfish reported; TABLEY MERE: Knutsford Group of Meres, Monitoring recommended for Nitrate Directive, Assess status of mere following installment of M6 interceptor; COMBER MERE: Largest mere in Environment Agency North West Region, Artificially eutrophicated, Records of native crayfish; NORBURY MERE: Pollution problems in west drain, Monitoring of nutrients recommended, Fisheries issue - carp and bream. This year, the variety of parameters monitored were limited to algal, zooplankton and water chemical samples. Fisheries and marginal invertebrate surveys were not completed due to lack of resources.
Publisher: Environment Agency
Publication Date: 2000
Subject Keywords: Lakes; Lentic waters (static); Nature conservation; Lake fisheries; Water pollution; Eutrophication; Geochemical surveys; Environmental surveys; Nutrients
Geographic Keywords: Norbury Mere; Oak Mere; Betley Mere; Cheshire; Betley Mere; Tabley Mere; Comber Mere
Extent: 11; + maps
Permalink: http://www.environmentdata.org/archive/ealit:541
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