Zobrazeno 1 - 10
of 104
pro vyhledávání: '"R, Bürgi"'
Publikováno v:
Aquatic Sciences. 70:30-46
There is tremendous diversity in species of phytoplankton. Yet one may expect some degree of commonality in the response of similar species to similar conditions. Functional groups are those sets of species that respond similarly to environmental con
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::89f9d95b13578f82dd05941703392890
https://doi.org/10.1007/s00027-007-0940-z
https://doi.org/10.1007/s00027-007-0940-z
Publikováno v:
Aquatic Ecosystem Health & Management. 6:147-158
Lake Greifensee, a dimictic lake situated near Zürich, Switzerland, has been monitored chemically and biologically since 1971, a period during which total phosphorus concentration changed dramatically. Based on analysis of cores of the lake sediment
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1a00531ed1f0b42390793b85201f7d53
https://doi.org/10.1080/14634980301471
https://doi.org/10.1080/14634980301471
Publikováno v:
Pharmaceutical Biology. 41:243-247
A total of 44 lipophilic and hydrophilic extracts obtained from 22 samples of cultured terrestrial and freshwater cyanobacteria were investigated for their biological activities. Of these, 54.5% of all extracts showed activity against Grampositive ba
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fad20294f406ba091c762048ca6db811
https://doi.org/10.1076/phbi.41.4.243.15672
https://doi.org/10.1076/phbi.41.4.243.15672
Autor:
H. R. Bürgi, P. Stadelmann
Publikováno v:
Aquatic Ecosystem Health & Management. 5:45-59
During the last 45 years, Lake Lucerne (Switzerland) was characterized by four major periods of varying trophic state: 1) the oligotrophic period (1955 to 1969): total phosphorus concentrations below 20 mg m−3, nitrate-nitrogen 300 to 400 mg m−3;
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a7c64ab81b462a0bd3b8a8d72175469b
https://doi.org/10.1080/14634980260199954
https://doi.org/10.1080/14634980260199954
Autor:
H. R. Bürgi, Pius Stadelmann
Publikováno v:
Hydrobiologia. 469:33-48
Lake Sempach, located in the central part of Switzerland, has a surface area of 14 km2, a maximum depth of 87 m and a water residence time of 15 years. Restoration measures to correct historic eutrophication, including artificial mixing and oxygenati
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::46c6c32342dfbf98521a0b81957bc470
https://doi.org/10.1023/a:1015575527280
https://doi.org/10.1023/a:1015575527280
Autor:
Christine Lehmann, Sonja Gammeter, H. R. Bürgi, Peter Bossard, Reinhard Bachofen, Ferdinand Schanz, Daniel Steiner, Ulrich Zimmermann
Publikováno v:
Aquatic Sciences. 63:225-249
This introductory article of the special GAP issue gives an overview on general limnological characteristics of the prealpine Lakes Zurich and Lucerne and the alpine Lake Cadagno and reports on the specific situation of primary production parameters
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6aa37bfafb627c323a13268422433687
https://doi.org/10.1007/pl00001353
https://doi.org/10.1007/pl00001353
Publikováno v:
Fundamental and Applied Limnology. 152:81-98
The aim of this study was to investigate the role of food uptake and preference of adult Lake Hallwil whitefish (Coregonus suidteri FATIO) on year class strength, with special emphasis on the situation in late winter and spring, the time when whitefi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dec527dcd97abdb208fa6d39a0cca2c0
https://doi.org/10.1127/archiv-hydrobiol/152/2001/81
https://doi.org/10.1127/archiv-hydrobiol/152/2001/81
Publikováno v:
Hydrobiologia. 464:143-151
In Lake Lucerne, Switzerland, the predaceous cladocerans Leptodora kindti and Bythotrephes longimanus segregate along spatial and temporal dimensions. In spring (April–May/June), Bythotrephes longimanus occurs below 0–20 m, while Leptodora is abs
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::215be82e8ccd6e78b00ce45fd4a66619
https://doi.org/10.1023/a:1013947419138
https://doi.org/10.1023/a:1013947419138
Publikováno v:
Journal of Plankton Research. 21:485-507
The strength of coupling between phyto- and zooplankton was measured from 1961 to 1995 by comparing the grazing effect of zooplankton (visible as clear-water phase only in 1968-1994) and also by excluding zooplankton in limnocorral experiments (1980-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cf5a4dc8c5bcfbdd615b1985aa477610
https://doi.org/10.1093/plankt/21.3.485
https://doi.org/10.1093/plankt/21.3.485
Publikováno v:
Pharmaceutical Biology. 37:138-143
A total of 86 lipophilic and hydrophilic extracts obtained from 43 samples of cultured and field collected freshwater and terrestrial cyanobacteria have been screened for their biological activities. Anti-microbial evaluation demonstrated 16.3% to be
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::044481bfdaccf7a7eddae07d2fbae8a9
https://doi.org/10.1076/phbi.37.2.138.6092
https://doi.org/10.1076/phbi.37.2.138.6092