Zobrazeno 1 - 7
of 7
pro vyhledávání: '"R. A. Vollenweider"'
Publikováno v:
Journal of the Fisheries Research Board of Canada. 31:739-762
Species composition of phytoplankton in the Laurentian Great Lakes, its biomass concentration, and its physiological activity measured as photosynthesis related to eutrophication, are reviewed and discussed.
Publikováno v:
Journal of the Fisheries Research Board of Canada. 31:253-263
Primary production values in Lake Ontario were low in winter, reached a maximum in midspring, declined during summer, and slightly increased in fall. Rate of increase of production for inshore waters (2 per hour was higher in Lake Ontario than in Lak
Publikováno v:
Journal of the Fisheries Research Board of Canada. 31:275-290
During 1970, temperature and nutrient distributions were measured in surface waters of lakes Ontario (12 cruises) and Erie (10 cruises). Nutrient patterns are compared and discussed in relation to temperature, primary production, and nutrient sources
Autor:
Oscar Ravera, R. A. Vollenweider
Publikováno v:
Schweizerische Zeitschrift für Hydrologie. 30:374-380
Mise en evidence de l'envahissement du Lac Majeur (Lago Maggiore) parOscillatoria rubescens D.C., qui depuis longtemps est consideree comme un indicateur biologique du changement des conditions trophiques des eaux douces. Des collections en different
Publikováno v:
Perspectives in Marine Biology
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c3c1b651a49c70fea8eb636c66fa50da
https://doi.org/10.1525/9780520350281-023
https://doi.org/10.1525/9780520350281-023
Autor:
R. A. Vollenweider
Publikováno v:
Nature. 174:1136-1137
Autor:
J. W. G. Lund, R. A. Vollenweider
Publikováno v:
The Journal of Ecology. 58:567