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Circulation and fertility of waters in Concepcion Bay
Authors:Ahumada B Ramón  Rudolph G Anny  Martinez M Victorino
Institution:1. Departamento de Biología y Tecnología del Mar, Pontificia Universidad Católica de Chile, Sede Talcahuano, Casilla 127 Talcahuano, Chile;2. Departamento de Química, Pontificia Universidad Católica de Chile, Sede Talcahuano, Casilla 127 Talcahuano, Chile
Abstract:The spatial and temporal distributions of oxygen, nutrients and pigments in the waters of Concepcion Bay, Chile (36°40′S, 73°01′W) are described for 1978–1979. Analysis of the seasonal fluctuations shows the upwelling of water poor in oxygen and rich in nutrients inside the bay during summer. The upwelled water fertilizes the bay and produces progressive eutrophication, causing mass mortalities, discoloured water and mineralization of organic matter.
Keywords:upwelling  nutrients  seasonal cycles  benthic environment  sediments  Chile
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