title: [Hygienic quality of lakes which are used as open-air bath. 2. Communication: Comparison of biochemical typed Escherichia coli strains isolated from lake water and bird excrements (author's transl)].
abstract: 368 strains of Escherichia coli were isolated from lakewaters and bird excrements (mainly black-headed gulls) using mandatory methods for drinking water examination. All strains were further characterized by 43 biochemical physiological and 30 morphological features. Besides the API 30 E Enterobacteriaceae system and the Roche Enterotube system of biochemical testing were used comparatively. The analysis using numerical methods for taxonomy pointed out that a single biotop could be characterized by the small physiological variation of the strains.
mesh_terms: D000818:Animals; D001431:Bacteriological Techniques; D001493:Bathing Beaches; D001717:Birds / Q000382:microbiology*; D004926:Escherichia coli / Q000145:classification / Q000302:isolation & purification* / Q000502:physiology; D005243:Feces / Q000382:microbiology; D005618:Fresh Water; D014871:Water Microbiology; D014876:Water Pollution
vernacular_title: Zur hygienischen Beschaffenheit von Freibadegewässern. 2. Mitteilung: Vergleich der Biotypen von Escherichia coli aus Seewasser und Vogelfaeces.