Visual survey of exposed riverine sediments (Ers) in the Dane, Weaver and Bollin catchments
This is the Visual survey ERS Dane, Weaver & Bollin Catchments produced by the Environment Agency in 2005. Visual surveys of the River Dane downstream of the confluence with the Swettenham Brook, the River Weaver, and the River Bollin catchment in the EA Northwest South area of England were undertaken between 3rd and 9th February 2005 with the aim of identifying the spatial distribution and relative quality of exposed Riverine sediments (ERS). The potential value of these ERS in terms of likely habitat quality for ERS invertebrate communities was determined by recording a suite of appropriate environmental variables. Following an initial cartographical analysis of reaches likely to contain ERS, tens of kilometres of riverbank were inspected and 67 areas of ERS were selected for detailed visual survey. Site characteristics ranged widely both between and within catchments, with habitat quality ranging from poor to very high.
Main Author: | Bates, Adam |
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Format: | monograph biblioteca |
Language: | English |
Published: |
Environment Agency
2005-02
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Subjects: | Ecology, Limnology, England, Cheshire, River Dane, River Weaver, River Bollin, Inland waters, Rivers, Invertebrate larvae, ERS, Environmental assessment, Water quality, |
Online Access: | http://hdl.handle.net/1834/26921 |
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