Distribución de la clorofila en las aguas adyacentes de las islas de Providencia y Santa Catalina, Caribe colombiano
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Date
2011
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Distribution of chlorophyll a in waters adjacent to the islands of Old Providence and Santa Catalina Colombian CaribbeanAbstract
Con el fin de determinar la concentración y distribución de la biomasa fitoplanctónica en aguas adyacentes a las islas de Providencia y Santa Catalina, Caribe colombiano, durante los dos periodos climáticos, seco y lluvioso, de 2005, se tomaron 59 muestras de agua en 47 estaciones superficiales y 12 en la columna de agua. Los parámetros fisicoquímicos variaron durante el año, la temperatura fluctuó entre 25-30 °C, la salinidad 28-39 y el pH entre 8.30-9.65. Las concentraciones de clorofila a y feopigmento a fueron bajas, típicas de zonas oligotróficas oceánicas, la clorofila a presentó un promedio para la época seca de 0.198±0.017 μg/L y para la época lluviosa de 0.693±0.149 μg/L, mientras que el feopigmento a tuvo un valor por debajo de 0.01 μg/L en ambas épocas climáticas. Se encontró que la comunidad fitoplanctónica es joven y con una alta tasa de renovación.Distribution of chlorophyll a in waters adjacent to the islands of Old Providence and Santa Catalina Colombian Caribbean. In order to determine the concentration and distribution of the phytoplankton biomass in waters of the islands of Old Providence and Santa Catalina, Colombian Caribbean a survey with 47 superficial samples, 12 in the whole water column, was carried out in 2005. Physicochemical parameters varied through the year; temperature fluctuated between 25 and 30 °C, salinity between 28 and 39, and pH between 8.30 and 9.65. Chlorophyll a and phaeopigment a concentrations were low, a characteristic of oligotrophic oceanic areas; chlorophyll a presented an average of 0.198±0.017 μg/L and 0.693±0.149 μg/L for dry and rainy seasons, while the phaeopigment a had a value below 0.01 μg/L in both seasons. It was found that the phytoplanktonic community is young and with an elevated renovation rate.
Journal
Boletín de investigaciones marinas y costerasVolume
40Issue/Article Nr
2Publisher or University
INVEMAR, Santa Marta (Colombia)Resource/Dataset Location
http://www.invemar.org.co/boletin/ArticulosR.jsp?idVol=109&idRev=1Collections
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