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Volume 44 - Number 1 - 2009
Article

 

Potentially harmful diatoms from the San Matías Gulf (Argentina)

Inés Sunesen1, Alejandra Bárcena1 y Eugenia A. Sar1, 2

 

1Departamento Científico Ficología, Facultad de Ciencias Naturales y Museo, Universidad Nacional de La Plata Paseo del Bosque s/n, 1900 La Plata, Argentina

2Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina

 

E-mail: prrlt@ingendesa.cl

 

Diatoms responsible for harmful events in other geographic areas, found in the coastal waters of the San Matías Gulf (Río Negro Province, Argentina), were studied. Materials were collected in two sampling stations related to natural banks and cultures of bivalves: Las Grutas and Piedras Coloradas. Two potentially toxigenic taxa and 18 harmful non toxigenic taxa were found. Despite that some of these taxa were occasionally abundant in the plankton of the area, none of them caused evident discolorations or detectable harmful effects during the study period

 

Key words: Diatoms, harmful, toxigenic, not toxigenic

 

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