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Unraveling the Unseen Players in the Ocean - A Field Guide to Water Chemistry and Marine Microbiology
Published on: November 5, 2014
Ciclo biogénico del carbono en la parte superior del océano: efectos de la respiración microbiana
1Ocean Sciences Centre, Memorial University of Newfoundland, St. John's, Newfoundland A1C 5S7, Canada. rrivkin@mun.ca
Science (New York, N.Y.)
|March 27, 2001
Resumen
La eficiencia del crecimiento bacteriano disminuye con la temperatura del océano, lo que afecta al ciclo del carbono. Este hallazgo sugiere una mayor exportación de carbono en aguas polares más frías en comparación con las regiones tropicales más cálidas.
Área de la Ciencia:
- Oceanografía La oceanografía es la oceanografía.
- Ecología microbiana marina ecología microbiana marina.
- Los ciclos biogeoquímicos son ciclos biogeoquímicos.
Sus antecedentes:
- Las redes alimentarias oceánicas controlan el flujo de carbono y el intercambio de CO2.
- La eficiencia del crecimiento bacteriano y la remineralización son parámetros clave.
Objetivo del estudio:
- Investigar la relación entre la eficiencia del crecimiento bacteriano y la temperatura.
- Cuantificar el papel de la respiración bacteriana en la respiración de la comunidad.
- Evaluar las diferencias latitudinales en la exportación de carbono.
Principales métodos:
- Análisis empírico de la eficiencia del crecimiento bacteriano en función de la temperatura.
- Cálculo de la respiración bacteriana basado en la temperatura y la producción.
- Comparación del ciclo del carbono en las regiones polares versus tropicales.
Principales resultados:
- La eficiencia del crecimiento bacteriano está inversamente relacionada con la temperatura.
- La respiración bacteriana representa la mayoría de la respiración de la comunidad.
- Mayor proporción de la producción exportada en las regiones polares debido a los efectos de la temperatura.
Conclusiones:
- La temperatura influye significativamente en la respiración bacteriana y la exportación de carbono.
- La respiración bacteriana se puede estimar a partir de la temperatura y la producción.
- Potencial para calcular la respiración heterotrófica a gran escala utilizando la teledetección.
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