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  • Environmental impact  (1)
  • Zooplankton  (1)
  • 1
    Publication Date: 2021-05-19
    Description: Se evaluó el patrón de distribución espacial así como la contribución de las fracciones del plancton a la biomasa planctónica menor de 200 μm en la región NW de las aguas oceánicas adyacentes a Cuba en muestreos realizados en época de invierno (febrero de 1997 y marzo 1999). Los valores de la biomasa bacteriana variaron entre 1.6 y 11.4 mgC m-3, del nanoplancton entre 5.2 y 20.8 mgC m-3 (Xmedia = 11.4 ± 5.4 mgC m-3) y la del microzooplancton entre 4.2 y 15.5 mgC m-3 (Xmedia = 7.9 ± 3.2 mgC m-3). El microfitoplancton presentó valores de biomasa que variaron entre 1.95 y 15.7 mgC m-3 (Xmedia = 8.8 ± 3.7 mgC m-3). Los mayores valores de biomasa de todas las fracciones estudiadas se encontraron en las aguas oceánicas adyacentes a la zona entre las bahías de Mariel y La Habana. El nanoplancton fue la fracción que más aportó a la biomasa menor de 200 μm en la capa fótica, seguida del microzooplancton, tanto en la estación con influencia costera (N.57) como en la oceánica (N.18).
    Description: Published
    Description: Aguas oceánicas, Microzooplancton, Microfitoplancton
    Keywords: Biomass ; Bacteria ; Biomass ; Bacteria ; Nannoplankton ; Oceanic waters ; Zooplankton ; Phytoplankton
    Repository Name: AquaDocs
    Type: Journal Contribution , Non-Refereed , Article
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  • 2
    Publication Date: 2021-05-19
    Description: The evaluation of the possible environmental changes due to the anthropic impacts that have happened in the last years in this scenario and the redefinition of areas that suffer affectations were carried up. Any environmental alteration of this ecosystem, either of natural or human origin, can have an important economic and social repercussion. According to the proposed chemical and biological indexes, the waters of the Gulf of Batabanó presented mesotrophic conditions with tendency to the eutrofization in four fundamental areas. In the silts of the Gulf the values of organic carbon and sulphidric acid were characteristic of sediments with high concentrations of organic matter. In the coastal sector N, was determinate high concentrations of sulphidric acid and heavy metals, which indicates elevated levels of antrophic affectation. The waters of the reefs of the Gulf showed mesotrophic conditions, while the silts were considered little affected, according to the chemical and biological indexes proposed in this work.
    Description: Instituto de Oceanología de Cuba
    Keywords: Heavy metals ; Environmental impact ; Water quality ; Coastal waters ; Heavy metals ; Environmental impact ; Coastal waters ; Water quality ; Man-induced effects ; Marine pollution
    Repository Name: AquaDocs
    Type: Conference Material
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