Biomass distribution of heterotrophic and autotrophic microorganisms of the photic layer in Cuban southern oceanic waters

Margarita Lugioyo, Gladys; Loza, Sandra; Abreu, Paulo C.

dc.creator	Margarita Lugioyo, Gladys
dc.creator	Loza, Sandra
dc.creator	Abreu, Paulo C.
dc.date	2007-01-15
dc.date.accessioned	2016-05-03T15:33:14Z
dc.date.available	2016-05-03T15:33:14Z
dc.identifier	http://revistas.ucr.ac.cr/index.php/rbt/article/view/6024
dc.identifier	10.15517/rbt.v55i2.6024
dc.identifier.uri	https://hdl.handle.net/10669/27436
dc.description	We measured the vertical and seasonal distribution of picoplankton (0.2-2 μm) and nanoplankton (2-20 μm) in the photic layer of Cuban southern oceanic and coastal waters. The concentration of the different fractions was estimated by epifluorescence microscopy. Heterotrophic components from the different fractions showed higher vertical stratification in the oceanic station in comparison to the coastal one. The autotrophic components showed an irregular vertical distribution pattern, both in coastal and oceanic stations. In all the analyzed stations, the heterotrophic bacteria showed an inverse correlation with the autotrophic (r= -0.98), and the heterotrophic nanoplankton (r= -0.96). Auto and heterotrophic nanoplankton probably regulate bacteria abundance by predation, although autotrophic nanoplankton may represent a source of organic matter for microorganisms.	en
dc.format	application/pdf
dc.language	eng
dc.publisher	Universidad de Costa Rica	en
dc.rights	Copyright (c) 2014 International Journal of Tropical Biology and Conservation	en
dc.source	Revista de Biología Tropical/International Journal of Tropical Biology and Conservation; Vol. 55 (2) June 2007	en
dc.source	Revista de Biología Tropical/International Journal of Tropical Biology and Conservation; Vol. 55 (2) June 2007	es-ES
dc.source	2215-2075
dc.source	0034-7744
dc.source	10.15517/rbt.v55i2
dc.title	Biomass distribution of heterotrophic and autotrophic microorganisms of the photic layer in Cuban southern oceanic waters	en
dc.type	artículo original
dc.coverage	CRC	en

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