Composición y abundancia de diatomeas y dinoflagelados potencialmente tóxicos en la bahía de Sechura, departamento de Piura – Perú
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Date
2015
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Universidad Nacional de Trujillo
Abstract
Mediante análisis cualitativo y cuantitativo se determinó la composición y abundancia de diatomeas y dinoflagelados potencialmente tóxicos de enero a junio 2015 en la bahía de Sechura. Se recolectaron muestras de fitoplancton con red de plancton de 15 μm y botella Nansen de 1,8 L en tres estaciones. Se encontraron 2 especies tóxicas de diatomeas y 8 de dinoflagelados. Dentro de las diatomeas, la especie más abundante fue Pseudonitzchia cf. seriata que alcanzó 18080 cel/L en el mes de marzo, y en los dinoflagelados la especie más abundante fue Prorocentrum minimum con 640 cel/L durante el mes de enero.
Composition and abundance of potentially toxic diatoms and dinoflagellates were determined from January to June 2015 in Sechura Bay. Three sampling stations were set, the sea water samples were collected by a standard phytoplankton net of 15μm and a Nansen bottle. 2 diatoms and 8 dinoflagellates species were indentified. Pseudonitzchia cf. seriata was the most abundant toxic diatom with 18080 cel/L in March, in the other hand Prorocentrum minimum was the most representative toxic dinoflagellate reaching a concentration of 640 cel/L during January
Composition and abundance of potentially toxic diatoms and dinoflagellates were determined from January to June 2015 in Sechura Bay. Three sampling stations were set, the sea water samples were collected by a standard phytoplankton net of 15μm and a Nansen bottle. 2 diatoms and 8 dinoflagellates species were indentified. Pseudonitzchia cf. seriata was the most abundant toxic diatom with 18080 cel/L in March, in the other hand Prorocentrum minimum was the most representative toxic dinoflagellate reaching a concentration of 640 cel/L during January
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Keywords
Algas unicelulares, Grupos de protistas