Articles | Volume 21, issue 6
https://doi.org/10.5194/bg-21-1433-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-21-1433-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
20 Mar 2024
Research article |
| 20 Mar 2024
| 20 Mar 2024
Oceanographic processes driving low-oxygen conditions inside Patagonian fjords
Pamela Linford
Programa de Doctorado en Ciencias, Mención Conservación y Manejo de Recursos Naturales, Universidad de Los Lagos, Puerto Montt, Chile
Centro i-mar, Universidad de Los Lagos, Casilla 557, Puerto Montt, Chile
Center for Oceanographic Research COPAS Sur-Austral and COPAS COASTAL, Universidad de Concepción, Concepción, Chile
Centro i-mar, Universidad de Los Lagos, Casilla 557, Puerto Montt, Chile
Center for Oceanographic Research COPAS Sur-Austral and COPAS COASTAL, Universidad de Concepción, Concepción, Chile
Centro de Investigación en Ecosistemas de la Patagonia (CIEP), Coyhaique, Chile
Paulina Montero
Center for Oceanographic Research COPAS Sur-Austral and COPAS COASTAL, Universidad de Concepción, Concepción, Chile
Centro de Investigación en Ecosistemas de la Patagonia (CIEP), Coyhaique, Chile
Patricio A. Díaz
Centro i-mar, Universidad de Los Lagos, Casilla 557, Puerto Montt, Chile
CeBiB, Universidad de Los Lagos, Casilla 557, Puerto Montt, Chile
Claudia Aracena
Centro de Investigación en Recursos Naturales y Sustentabilidad, Universidad Bernardo O'Higgins, Avenida Viel 1497, Santiago, Chile
Laboratorio Costero de Recursos Acuáticos de Calfuco, Universidad Austral de Chile, Valdivia, Chile
Elías Pinilla
Instituto de Fomento Pesquero (IFOP), CTPA Putemún, Castro, Chile
Department of Civil and Environmental Engineering, University of Maine, Orono, ME, USA
Facundo Barrera
Fundación Bariloche and CONICET, San Carlos de Bariloche, Argentina
Centro Austral de Investigaciones Científicas (CADIC), CONICET, Bernardo Houssay 200, Ushuaia, Argentina
Manuel Castillo
Centro de Observación Marino para Estudios de Riesgos del Ambiente Costero, Universidad de Valparaíso, Valparaíso, Chile
Aida Alvera-Azcárate
AGO-GHER, University of Liège, Liège, Belgium
Mónica Alvarado
Servicio Hidrográfico y Oceanográfico de la Armada de Chile, Valparaíso, Chile
Gabriel Soto
Instituto de Fomento Pesquero (IFOP), CTPA Putemún, Castro, Chile
Cécile Pujol
AGO-GHER, University of Liège, Liège, Belgium
Camila Schwerter
Centro i-mar, Universidad de Los Lagos, Casilla 557, Puerto Montt, Chile
Sara Arenas-Uribe
Centro i-mar, Universidad de Los Lagos, Casilla 557, Puerto Montt, Chile
Pilar Navarro
Centro i-mar, Universidad de Los Lagos, Casilla 557, Puerto Montt, Chile
Guido Mancilla-Gutiérrez
Centro i-mar, Universidad de Los Lagos, Casilla 557, Puerto Montt, Chile
Robinson Altamirano
Centro i-mar, Universidad de Los Lagos, Casilla 557, Puerto Montt, Chile
Javiera San Martín
Instituto de Fomento Pesquero (IFOP), CTPA Putemún, Castro, Chile
Camila Soto-Riquelme
Instituto de Fomento Pesquero (IFOP), CTPA Putemún, Castro, Chile
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Short summary
The Patagonian fjords comprise a world region where low-oxygen water and hypoxia conditions are observed. An in situ dataset was used to quantify the mechanism involved in the presence of these conditions in northern Patagonian fjords. Water mass analysis confirmed the contribution of Equatorial Subsurface Water in the advection of the low-oxygen water, and hypoxic conditions occurred when the community respiration rate exceeded the gross primary production.
The Patagonian fjords comprise a world region where low-oxygen water and hypoxia conditions are...
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