Plankton studies in a mangrove environment III: bacteriological analysis of waters in Cananéia

Abstract

Waters of the mangrove swamp at Cananeia were analysed bacteriologically aiming the determination of the degree of bacterial contamination. Aerobic counts varied significantly by season, tide and station with the highest of 13,000 and the lowest of 21/ml while coliform counts showed significant variation only by station with the highest of 1,600 and the lowest of 3 per ml. Pseudomonas-Achromobacter group comprised the highest percentage of the total flora at the level of around 60%. The biochemical characteristic of the strains of this group are more saccharolytic than proteolytic, certainly due to the great number of diatoms present.

Estudo da variação estacional do "standing-crop" e do repovoamento em um banco de Spartina alterniflora Loiseleur, 1807, no complexo estuarino-lagunar de Cananéia

“…Occhipinti (1959) A região estuarina-lagunar de Cananéia por ser um sistema bastante complexo, tem oferecido enormes oportunidades de estudos de natureza variada, tais como: aspectos hidrológicos, geoquimicos das propriedades de suas águas e a distribuição de seus vários constituintes quimicos foram estudados por Kato (1966a, b, c); os sedimentos de fundo por Kutner (1962) e Magliocca & Kutner (1964); a hidrografia por Machado (1952), Miniussi (1953) e Kato (1966a; os biológicos por Gerlach (1954), Teixeira & Kutner (1963), Teixeira, Kutner & Torgo (1965), Teixeira, Tundisi & Kutner (1965), Tundisi & Teixeira (1968), Teixeira, Tundisi & Santoro (1967;1969), Watanabe & Kutner (1965), Prado (1972, Kutner (1972) e Tommasi (19701971).…”

Spatial and temporal variability of saphrophytic bacteria in the surface waters of Paranaguá and Antonina Bays, Paraná, Brazil

“…The few on record are, however, worth mentioning: Watanabe & Kutner (1965) in Cananeia (SP) performed saprophyte and coliform counts and identified some isolated stock; Mesquita (1981) compared total numbers of free bacteria to those adhering to particules and their relation with abiotic factors in surface waters of the referred estuaries; Abreu et al (1992) studied the interrelation between free and attached bacteria, phytoplankton, heterotrophic flagellates, ciliates, and physicalchemical alterations in an annual.cycle at Lagoa dos Patos estuary (RS). Kolm & Correa (1994) analysed the spatial and temporal variation of saprophytes in sediments of a sandy beach at Pontal do Sul (PR), near the entrance of the estuary of Paranagui Bay.…”