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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
Materia orgánica disuelta y micronutrientes heterotróficos en las microcapas superficiales del Atlántico Norte
Science (New York, N.Y.)
|December 24, 1976
Resumen
El océano El océano es el océano.
Área de la Ciencia:
- Química marina La química marina es la química de los océanos.
- Microbiología Microbiología.
- Oceanografía La oceanografía es la oceanografía.
Sus antecedentes:
- La micro capa de la superficie del océano es un hábitat distinto.
- Comprender su papel en el ciclo del carbono es crucial.
Objetivo del estudio:
- Para cuantificar el carbono orgánico y el enriquecimiento microbiano en la micro capa superficial.
- Para identificar el origen y el destino de la materia orgánica en esta capa.
Principales métodos:
- Análisis de carbono orgánico disuelto, carbohidratos y trifosfato de adenosina en fracciones de tamaño.
- Medición de pigmentos vegetales y de las partículas de trifosfato de adenosina.
- Culturas bacterianas y amoebales para la verificación.
Principales resultados:
- Enriquecimiento significativo de carbono orgánico y carbohidratos en la capa superficial de 150 micrómetros.
- Las concentraciones de microcapas superficiales de materia orgánica pueden alcanzar los 2,9 g/L.
- Se observó enriquecimiento de bacterias y protistas, lo que apoya las condiciones heterotróficas del microcosmos.
Conclusiones:
- La micro capa superficial actúa como un rico microcosmos heterotrófico.
- Los carbohidratos derivados del fitoplancton son un componente significativo del carbono orgánico disuelto en esta capa.
- La migración y la excreción de protistas contribuyen a la acumulación de materia orgánica.
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