Die neuere Entwicklung und der heutige Zustand der Schweizer Seen

Jaag, Otto

doi:10.1080/03680770.1948.11895140

Cited by 12 publications

(6 citation statements)

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“…Jahrhundert (z. B. Schweiz: [8][9][10][11][12], [23], [71], [76][77][78][79][80][81][82][83], [116,117], [164], [167][168][169], [179] ; Osterreich, Deutschland: [4o,4I], [96], [lO8], [146]; Italien: [lO3], [112,113]; USA: [37]-Vermutlich war die Blaualge in diesen Seen schon friiher vereinzelt vorhanden gewesen, kam dann aber nach Vertinderungen in den physikalischen und chemischen Umweltbedingungen zu dichteren Bestanden, zur Dominanz und sogar zur Wasserbltite.…”

Section: Einleitung Und Problemstellungunclassified

Ernährungsphysiologisch-autökologische Untersuchungen an der planktischen BlaualgeOscillatoria rubescens DC.

Staub¹

1961

Schweiz. Z. Hydrologie

153

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Section: Einleitung Und Problemstellungunclassified

Ernährungsphysiologisch-autökologische Untersuchungen an der planktischen BlaualgeOscillatoria rubescens DC.

Staub¹

1961

Schweiz. Z. Hydrologie

153

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“…En effet, ce lac est eutrophe depuis longtemps. En 1825 déjà (Jaag, 1948), l'eau du lac de Morat était devenue rouge à cause de la prolifération d'une cyanobactérie (Oscillatoria rubescens, appelée maintenant Planktothrix rubescens DC). Certains riverains, croyant que c'était le sang des soldats tués lors de la bataille de Morat en 1476 qui remontait à la surface, ont appelé ce phénomène Sang des Bourguignons.…”

Section: Introductionunclassified

Etat trophique du lac de Morat indiqué par le zoobenthos: tendance 1980-1998

Lang¹

2000

Revue Suisse De Zoologie

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Trophic state of Lake Morat indicated by the zoobenthos: the 1980-1998 trend. -Total phosphorus concentrations have strongly decreased between 1982 and 1998 in the water of Lake Morat (Switzerland). In response to this improvement, the numbers of tubificids (Tubifex tubifex and Potamothrix hammoniensis mostly) decreased in the deepest area (40-45 m), but the other species (Limnodrilus profundicola and L. hoffmeisteri) present therein, remained scarce. In contrast at a depth of 20 m, chironomid larvae (Chironomus and Procladius) and the tubificid Potamothrix moldaviensis became more abundant in 1998. These changes indicated a slow improvement of benthic conditions but, in 1998, the zoobenthos was always characteristic for a eutrophic lake.

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“…In highly entrophic waters they are absent. Diminishing or disappearing charophytic vegetation is reported from waters with sewage outlets or waters which are eutrophicated by other reasons (Jaag 1949. Ahucstrand and Lundh 1951.…”

Section: G Consistency Of the Results And Discussionmentioning

confidence: 99%