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Bacterias planctónicas

Authors: Castellví, Josefina;

Bacterias planctónicas

Abstract

En el ambiente marino deben considerarse dos tipos de poblaciones bacterianas: aquellas que viven y se reproducen en el mar, es decir, que están completamente adaptadas a este medio, y la microflora accidental constituida por los gérmenes que han sido arrastrados al mar por los aportes terrígenos, ya sean ríos, la lluvia y cloacas en las cercanías de las poblaciones. Este tipo de bacterias resisten en el mar más o menos tiempo, aunque generalmente sin reproducirse, lo que no obsta para que no se las halle muy alejadas de la costa. Así Lagarde ha encontrado Streptoooccus foecalis a profundidades de 1.000 metros en el Mediterráneo y Brisou da cuenta de haber hallado gérmenes terrnófilos patógenos en sedimentos del Atlántico, a profundidades de 5.000 metros. El estudio de esta flora continental que por las razones que sea se halla en el mar, es importante e incluso indispensable para los higienistas, ya que representa un peligro para el hombre. La mayor concentración de estos gérmenes se observa en los puertos y costas, y por ella algunas playas pueden ser insalubres. Mayor importancia tienen todavía en relación con aquellos productos que, extraídos del mar, son ingeridos por el hombre, tales como ostras, mejillones, etc., que por su sistema de nutrición filtran grandes cantidades de agua y retienen las bacterias, convirtiéndose en verdaderos concentrados de gérmenes. [...]

Quinta Reunión sobre Producción Marina y Explotación Pesquera en la sede del Intituto de Investigaciones Pesqueras (IIP-CSIC) de Barcelona, celebrada del 24 al 29 de abril de 1965.-- 4 pages

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selected citations
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This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
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