Zobrazeno 1 - 10
of 43
pro vyhledávání: '"D.V. Leach"'
Autor:
D.V. Leach, J. Davy-Bowker, Cynthia E. Davies, Michael J. Bowes, M. Haft, Peter Scarlett, Heather Wickham, Sarah Harman, Colin Neal, L.K. Armstrong, Jim T. Smith
Publikováno v:
Science of The Total Environment. 409:3418-3430
The water quality of the River Frome, Dorset, southern England, was monitored at weekly intervals from 1965 until 2009. Determinands included phosphorus, nitrogen, silicon, potassium, calcium, sodium, magnesium, pH, alkalinity and temperature. Nitrat
Publikováno v:
Water Research. 35:2749-2757
Dissolved reactive silicon and nitrate were measured at weekly intervals over a 3 year period (1991–94) on a 1.2 km reach of a gauged Dorset Mill Stream. In addition, dissolved nitrite was measured over a 8 month period from the spring to late autu
Publikováno v:
Science of The Total Environment. :163-172
A wide range of major, minor and trace element data are presented together with background information on hydrology and suspended sediments for the agriculturally impacted River Derwent to the north of the Humber Estuary, eastern England. Water quali
Publikováno v:
Regulated Rivers: Research & Management. 13:287-294
0 group roach, (Rutilus rutilus) in the River Great Ouse showed marked ontogenetic changes in their diet. Initial prey were diatoms and Rotifera, followed by Cladocera and other small aquatic invertebrates. From late June onwards, roach in the main r
Publikováno v:
Regulated Rivers: Research & Management. 13:259-266
The densities of important fish-food organisms associated with submerged Nuphar lutea leaves during late spring and summer were studied in a main river channel and an adjacent side channel over three years. The abundance of micro crustacea varied sub
Publikováno v:
Regulated Rivers: Research & Management. 13:245-258
The spatial and temporal dynamics of zooplankton populations were investigated in a highly engineered and regulated section of the River Great Ouse from 1989 to 1993. In addition to main river sites some secondary channels (back channels) and a marin
Autor:
J.P. Lishman, E. Tipping, D.V. Leach, C. Butterwick, J.K.G. Ingram, E. Rigg, A.F.H. Marker, P.A. Cranwell, G.D. Collett, B.M. Simon, Adrian C. Pinder
Publikováno v:
Science of The Total Environment. :345-355
Dissolved organic carbon (DOC), particulate organic carbon (POC), particulate organic nitrogen (PON), chlorophyll- a , and alkalinity were determined weekly or more frequently in samples from 11 rivers in the Humber catchment, between September 1993
Publikováno v:
Science of The Total Environment. :101-109
The large-scale, highly integrated, multidisciplinary nature of the LOIS rivers programme mean that certain measurements were common to many LOIS research projects (including water discharge, suspended sediment concentrations, pH, conductivity) or de
Autor:
Andrew A. Meharg, D.O. Orr, James S. Wright, L. Bharwaj, William A. House, G.P. Ryland, J.L.A. Long, Caleb Smith, P. Cranwell, D.V. Leach
Publikováno v:
Science of The Total Environment. :357-371
The concentrations of a range of micro-organic compounds in the Humber rivers have been measured at weekly intervals over a period of 1 year. The compounds include the triazine herbicides (simazine, atrazine, propazine, desmetryn and prometryn), sele
Autor:
D.V. Leach, M. Cranston, Heather Wickham, Linda Hill, C.I. Tindall, G.P. Ryland, Martin Harrow, A. Robson, R.K. Bronsdon, Colin Neal, R.C. Johnson, C.L. Bhardwaj
Publikováno v:
Science of The Total Environment. :193-205
A wide range of major, minor and trace element data is presented for three sites in the Tweed basin. These are located at the downstream freshwater limit, the upland-lowland transition point and a major tributary, the Teviot. In comparison to the agr