Biomass distribution of heterotrophic and autotrophic microorganisms of the photic layer in Cuban southern oceanic waters
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| Formato: | Artículo científico |
| Lenguaje: | en |
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Universidad de Costa Rica
2007
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| _version_ | 1876432616811397120 |
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| author | Gladys Margarita Lugioyo |
| author_facet | Gladys Margarita Lugioyo |
| contents | Biomass distribution of heterotrophic and autotrophic microorganisms of the photic layer in Cuban southern oceanic waters Gladys Margarita Lugioyo Sandra Loza Paulo C. Abreu Biología Cuba vertical picoplankton nanoplankton oceanic waters We measured the vertical and seasonal distribution of picoplankton (0.22 µm) and nanoplankton(220 µm) in the photic layer of Cuban southern oceanic and coastal waters. The concentration of the differentfractions was estimated by epifluorescence microscopy. Heterotrophic components from the different fractionsshowed higher vertical stratification in the oceanic station in comparison to the coastal one. The autotrophiccomponents showed an irregular vertical distribution pattern, both in coastal and oceanic stations. In all theanalyzed stations, the heterotrophic bacteria showed an inverse correlation with the autotrophic (r= -0.98), andthe heterotrophic nanoplankton (r= -0.96). Auto and heterotrophic nanoplankton probably regulate bacteriaabundance by predation, although autotrophic nanoplankton may represent a source of organic matter for microorganisms.Rev. Biol. Trop. 55 (2): 449-457. Epub 2007 June, 29. 2007 artículo científico 0034-7744 https://www.redalyc.org/articulo.oa?id=44955210 en http://www.redalyc.org/revista.oa?id=449 Revista de Biología Tropical application/pdf Universidad de Costa Rica Revista de Biología Tropical (Costa Rica) Num.2 Vol.55 |
| format | Artículo científico |
| id | redalyc_44955210 |
| institution | Redalyc |
| language | en |
| publishDate | 2007 |
| publisher | Universidad de Costa Rica |
| spellingShingle | Biomass distribution of heterotrophic and autotrophic microorganisms of the photic layer in Cuban southern oceanic waters Gladys Margarita Lugioyo Biología Cuba vertical picoplankton nanoplankton oceanic waters Biomass distribution of heterotrophic and autotrophic microorganisms of the photic layer in Cuban southern oceanic waters Gladys Margarita Lugioyo Sandra Loza Paulo C. Abreu Biología Cuba vertical picoplankton nanoplankton oceanic waters We measured the vertical and seasonal distribution of picoplankton (0.22 µm) and nanoplankton(220 µm) in the photic layer of Cuban southern oceanic and coastal waters. The concentration of the differentfractions was estimated by epifluorescence microscopy. Heterotrophic components from the different fractionsshowed higher vertical stratification in the oceanic station in comparison to the coastal one. The autotrophiccomponents showed an irregular vertical distribution pattern, both in coastal and oceanic stations. In all theanalyzed stations, the heterotrophic bacteria showed an inverse correlation with the autotrophic (r= -0.98), andthe heterotrophic nanoplankton (r= -0.96). Auto and heterotrophic nanoplankton probably regulate bacteriaabundance by predation, although autotrophic nanoplankton may represent a source of organic matter for microorganisms.Rev. Biol. Trop. 55 (2): 449-457. Epub 2007 June, 29. 2007 artículo científico 0034-7744 https://www.redalyc.org/articulo.oa?id=44955210 en http://www.redalyc.org/revista.oa?id=449 Revista de Biología Tropical application/pdf Universidad de Costa Rica Revista de Biología Tropical (Costa Rica) Num.2 Vol.55 |
| title | Biomass distribution of heterotrophic and autotrophic microorganisms of the photic layer in Cuban southern oceanic waters |
| topic | Biología Cuba vertical picoplankton nanoplankton oceanic waters |
| url | https://www.redalyc.org/articulo.oa?id=44955210 |