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Revista de Biologia Marina y Oceanografia
Article . 2019 . Peer-reviewed
License: CC BY
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Revista de Biologia Marina y Oceanografia
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Propuesta para el control del agua de lastre en buques que arriban a puertos de la Ecorregión Marina de Chile Central

Authors: Baro-Narbona, Sandra; Stotz, Wolfgang;

Propuesta para el control del agua de lastre en buques que arriban a puertos de la Ecorregión Marina de Chile Central

Abstract

La navegación marítima es esencial para la economía. Con el avance tecnológico y buques más rápidos, la frecuencia de los viajes transoceánicos ha aumentado, incrementando el riesgo de impactos negativos ambientales y socio-económicos asociados a la descarga descontrolada de agua de lastre. Esta agua es cargada por los buques para conservar su estabilidad y maniobrabilidad, pero que lleva materias en suspensión, incluyendo agentes biológicos, que pueden generar bioinvasiones. Por lo anterior, y reconociendo la importancia de un enfoque precautorio se hace necesario contar con una herramienta de gestión preventiva que permita discernir cuando el deslastre es potencialmente peligroso. Esta revisión propone una herramienta basada en la frecuencia y volumen del agua de lastre desde un mismo puerto de origen, la similitud ambiental entre el puerto de origen y el receptor del lastre y la presencia de especies de riesgo en el puerto de origen. Para esto se desarrolló el cálculo de un Coeficiente de Riesgo Global (CRG), que deberá ser estimado para cada buque que arribe al Puerto antes de que inicie el deslastre. Si CRG >16%, el riesgo es probable, entonces correspondería verificar el recambio de agua de lastre en aguas oceánicas como lo exigen las regulaciones internacionales. Se recomienda medir in situ la Materia Orgánica Cromofórica Disuelta (CDOM por sus siglas en inglés), ya que permite discriminar entre agua costera y oceánica. Si del análisis resulta que el agua es costera, significa el incumplimiento del intercambio del agua de lastre en alta mar, entonces se debería evitar la descarga de lastre en el puerto.

Related Organizations
Keywords

tratamiento, treatment, gestión, Verification, agua de lastre, ballast water, Verificación, management

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selected citations
These citations are derived from selected sources.
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).
BIP!Citations provided by BIP!
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!
1
Average
Average
Average
Green
gold