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Casas gigantes de larvas: transporte rápido de carbono al fondo del mar profundo
Bruce H Robison1, Kim R Reisenbichler, Rob E Sherlock
1Monterey Bay Aquarium Research Institute, 7700 Sandholdt Road, Moss Landing, CA 95039, USA. robr@mbari.org
Science (New York, N.Y.)
|June 11, 2005
Resumen
Las larvas gigantes de los larvaceos.
Área de la Ciencia:
- Biología marina Biología marina.
- Oceanografía La oceanografía es la oceanografía.
- Ecología de las profundidades marinas.
Sus antecedentes:
- Existe una brecha significativa entre las necesidades alimentarias de los animales del fondo del mar profundo y el suministro de alimentos medido.
- Las trampas de sedimentos tradicionales subestiman el flujo vertical de nutrientes.
Objetivo del estudio:
- Para investigar el papel de las estructuras de moco de larvas gigantes en el suministro de alimentos de aguas profundas.
- Para conciliar la discrepancia en la disponibilidad de alimentos de aguas profundas.
Principales métodos:
- Un estudio de series temporales de una década de duración de la columna de agua frente a la bahía de Monterey, California.
- Análisis de la contribución de las estructuras de alimentación de larvas a las exportaciones verticales.
Principales resultados:
- Las estructuras de alimentación de moco desechadas de larvas gigantes transportan una significativa productividad del océano superior al lecho marino profundo.
- Estas estructuras son rápidas, ricas en carbono y no son capturadas por muestreo convencional.
Conclusiones:
- Las estructuras de moco de larvas gigantes son cruciales, antes no contabilizadas, vectores de carbono a las profundidades del mar.
- La inclusión de estas estructuras es vital para presupuestos precisos de carbono oceánico y cálculos de flujo de nutrientes.
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