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of 8
pro vyhledávání: '"Les Ruse"'
Autor:
Les Ruse
Publikováno v:
European Journal of Environmental Sciences, Vol 5, Iss 1, Pp 80-85 (2015)
The European Union Water Framework Directive (WFD) classifies ecological status of a waterbody by the determination of its natural reference state to provide a measure of perturbation by human impacts based on taxonomic composition and abundance of a
Externí odkaz:
https://doaj.org/article/65e7a46ce51441c8844b98f9356ce7ff
Autor:
Les Ruse
Publikováno v:
Ecological Indicators. 10:594-601
The European Union Water Framework Directive (WFD) aims to achieve Good ecological status of its waterbodies by 2015 through the determination of reference state to provide a measure of perturbation by human impacts based on taxonomic composition and
Autor:
Les Ruse
Publikováno v:
Fundamental and Applied Limnology. 153:391-407
The Environment Agency (England and Wales) has constructed a flood relief channel through gravel substrata for the River Thames to bypass the towns of Maidenhead and Windsor. As they were dug, sections of channel flooded with groundwater to create a
Autor:
Les Ruse
Publikováno v:
Fundamental and Applied Limnology. 153:367-390
Thirty lakes in England and Wales were characterised by the distribution and abundance of chironomid species, collected as pupal exuviae, in correlation with chemical and physical measurements. Alkalinity and lake volume were the best predictors of c
Autor:
Les Ruse, Mark Davison
Publikováno v:
Regulated Rivers: Research & Management. 16:113-126
Discharge of the River Thames is already regulated to prevent flooding and to satisfy demands for water. A flood alleviation channel is under construction, while a pumped-storage reservoir has been proposed to further regulate discharge for water sup
Autor:
Les Ruse, Alison Love
Publikováno v:
Regulated Rivers: Research & Management. 13:171-183
This paper describes and analysis of a 4.5-kV, 500-mA, regulated current pulser used to drive a Hitachi ZM130 magnetron in a particle-accelerator injector. In this application, precise beam from the injector. A high-voltage triode vacuum tube with ac
Autor:
Les Ruse
Publikováno v:
Archiv für Hydrobiologie. 133:223-244
Chironomid pupal exuviae were collected from the same site on a third order chalk stream for three years at approximately monthly intervals. During the final year, larvae were core sampled from mid-channel gravel. Below-average flows were interrupted
Autor:
Les Ruse
Publikováno v:
Fauna Norvegica, Vol 31 (2012)
An artificial anabranch was opened to the main River Thames by the end of 2001. Chironomid pupal exuviae have been sampled from sites along the main river since 1977 including sites above and below the anabranch. Two sites on the anabranch have also