A mosaic of phytoplankton responses across Patagonia, the southeast Pacific and the southwest Atlantic to ash deposition and trace metal release from the Calbuco volcanic eruption in 2015
Maximiliano J. Vergara-Jara,Mark J. Hopwood,Thomas J. Browning,Insa Rapp,Rodrigo Torres,Brian Reid,Eric P. Achterberg,and José Luis Iriarte
Programa de Doctorado en Ciencias de la Acuicultura, Universidad
Austral de Chile, Puerto Montt, Chile
Instituto de Acuicultura and Centro de Investigación Dinámica
de Ecosistemas Marinos de Altas Latitudes (IDEAL), Universidad Austral de
Chile, Puerto Montt, Chile
GEOMAR, Helmholtz Centre for Ocean Research Kiel, 24148 Kiel, Germany
Thomas J. Browning
GEOMAR, Helmholtz Centre for Ocean Research Kiel, 24148 Kiel, Germany
Insa Rapp
Department of Biology, Dalhousie University, Halifax, Nova Scotia,
Canada
Rodrigo Torres
Instituto de Acuicultura and Centro de Investigación Dinámica
de Ecosistemas Marinos de Altas Latitudes (IDEAL), Universidad Austral de
Chile, Puerto Montt, Chile
Centro de Investigación en Ecosistemas de la Patagonia (CIEP),
Coyhaique, Chile
Brian Reid
Centro de Investigación en Ecosistemas de la Patagonia (CIEP),
Coyhaique, Chile
Eric P. Achterberg
GEOMAR, Helmholtz Centre for Ocean Research Kiel, 24148 Kiel, Germany
José Luis Iriarte
Instituto de Acuicultura and Centro de Investigación Dinámica
de Ecosistemas Marinos de Altas Latitudes (IDEAL), Universidad Austral de
Chile, Puerto Montt, Chile
COPAS-Sur Austral, Centro de Investigación Oceanográfica en el
Pacífico Sur-Oriental (COPAS), Universidad de Concepción,
Concepción, Chile
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Ash from the Calbuco 2015 eruption spread across northern Patagonia, the SE Pacific and the SW Atlantic. In the Pacific, a phytoplankton bloom corresponded closely to the volcanic ash plume, suggesting that ash fertilized this region of the ocean. No such fertilization was found in the Atlantic where nutrients plausibly supplied by ash were likely already in excess of phytoplankton demand. In Patagonia, the May bloom was more intense than usual, but the mechanistic link to ash was less clear.
Ash from the Calbuco 2015 eruption spread across northern Patagonia, the SE Pacific and the SW...
