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  • 1
    Publication Date: 2021-05-19
    Description: El propósito de este trabajo es evaluar el estado trófico de las aguas en la costa oriental de la provincia de Cienfuegos, a partir de las concentraciones de nutrientes y del fitoplancton. Se utilizaron dos métodos de evaluación del estado trófico y se consideraron los resultados de nitrógeno inorgánico (NI), fósforo inorgánico (FI), Si y fitoplancton, los cuales se obtuvieron durante cuatro campañas de muestreo llevadas a cabo en el período 2006-2007. Se analizó la proporción elemental disponible Si/NI según criterio de Redfield, así como también se obtuvieron los coeficientes de correlaciones entre las concentraciones de nutrientes y fitoplancton. Los resultados mostraron al Si como el nutriente más disponible en el área de estudio y a las diatomeas como el grupo de fitoplancton predominante; sin embargo, sus concentraciones no se correlacionaron significativamente, lo cual pudiera deberse a una respuesta no inmediata de este indicador biológico al cambio de nutriente. Las evaluaciones del estado trófico mostraron correspondencia entre los niveles de fitoplancton y de nutrientes; así como poco impacto en la calidad de las aguas de esta zona costera, desde el punto de vista trófico.
    Description: The purpose of this work is to assess the trophic status of waters in the east coast of the Cienfuegos province, from the nutrients and phytoplankton concentrations. Two methods of assessment of the trophic status were used and it were considered the results of inorganic nitrogen (IN), inorganic phosphorus (IP) and Si, which were obtained during four sampling campaigns carried out in the period 2006-2007. The available elementary proportion Si/IN was analyzed according to criterion of Redfield, as well as the correlation coefficients among the nutrients and phytoplankton concentrations were obtained. The results showed to the Si as the most available nutrient in the study area and to the diatoms like the phytoplankton group predominant; however, their concentrations were not correlated significantly and it could be due to a non immediate response of this biological indicator to the nutrient change. The assessments of the trophic status showed correspondence among the phytoplankton and nutrients levels; as well as little impact in the water quality of this coastal area, from the trophic point of view.
    Description: Published
    Description: ASW
    Description: Cuba
    Keywords: Trophic status ; Nutrients (mineral) ; Phytoplankton ; Coastal zone
    Repository Name: AquaDocs
    Type: Journal Contribution , Refereed , Article
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