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DOI | 10.1016/J.AQUACULTURE.2017.06.008 | ||||
Año | 2017 | ||||
Tipo | artículo de investigación |
Citas Totales
Autores Afiliación Chile
Instituciones Chile
% Participación
Internacional
Autores
Afiliación Extranjera
Instituciones
Extranjeras
In addition to the increase in temperature occurring in the world's oceans, new evidences suggest a tendency for an increase in upwelling-favorable winds, bringing to surface cold and high pCO(2) corrosive waters. Changing temperature and pCO(2) conditions may have significant implications for the shellfish farming socio-ecological system. In order, to setup the basis for understand the impact of both environmental variables, in this study, we investigated the combined effects of changing temperature and pCO(2) on the physiological rates and histopathology of scallops Argopecten purpuratus farmed in Tongoy Bay, an area permanently influenced by coastal upwelling. Juvenile scallops were reared at two pCO(2) levels (400 and 1000 mu atm) and two temperatures (14 and 18 degrees C). After 18 d of experimental exposure, growth, metabolic and clearance rates increased significantly at high temperature but independent of pCO(2) level, indicating a positive effect of warming on the physiological processes associated with energy acquisition. However, ingestion rates of scallops showed a synergistic interactive effect when exposed to both stressors. Increased pCO(2) also impacts the health of A. purpuratus through atrophy in the digestive gland. These results suggest that, the presence of trade-offs in energy allocation during upwelling-induced stress (low temperature and high pCO(2)) can impact growth, metabolism, ingestion rates and health status of scallops cultured in Tongoy Bay. But, less severe response to high pCO(2) levels, suggest that natural variability in upwelling areas may promote acclimation and adaptation potential in this farmed scallops.
Ord. | Autor | Género | Institución - País |
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1 | LARDIES-CARRASCO, MARCO ANTONIO | Hombre |
Universidad Adolfo Ibáñez - Chile
Universidad de Concepción - Chile |
2 | BENITEZ-VILLAFRANCA, SAMANTA ELENA | Mujer |
Universidad Adolfo Ibáñez - Chile
Universidad de Concepción - Chile |
3 | Osores, Sebastian | Hombre |
Universidad Adolfo Ibáñez - Chile
Universidad de Concepción - Chile |
4 | VARGAS-PARADA, CONSTANZA LORETO | Mujer |
Universidad de Concepción - Chile
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5 | DUARTE-VALENZUELA, CRISTIAN HERNAN | Hombre |
Universidad Nacional Andrés Bello - Chile
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6 | LAGOS-SUAREZ, NELSON ALEJANDRO | Hombre |
Universidad Santo Tomás - Chile
Universidad de Concepción - Chile |
7 | LOHRMANN-SHEFFLIED, KARIN BERTA | Mujer |
Universidad Católica del Norte - Chile
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Fuente |
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FONDECYT |
Fondo Nacional de Desarrollo Científico y Tecnológico |
MINECON |
Fondo Nacional de Desarrollo CientÃfico y Tecnológico |
Millennium Nucleus Center |
Millennium Nucleus Center for the Study of Multiple Drivers on Marine Socio-Ecological Systems (MUSELS) - MINECON |
Millennium Institute of Oceanography (IMO), MINECON |
Agradecimiento |
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We thank Pamela Tapia and Christian Tapia at Invertec-Ostimar Hatchery and fieldwork facilities. We extend our acknowledgment to Jorge Lopez, and Paulina Contreras for their valuable assistance during the experiments and fieldwork. We thank two anonymous reviewers for insightful criticisms to the manuscript. This study was supported by the Millennium Nucleus Center for the Study of Multiple drivers on Marine Socio-Ecological Systems (MUSELS) funded by MINECON NC120086 and FONDECYT grant nos. 1140938 and 1140092 to N.A.L. and M.A.L., and 1130254 to CAV. CAV was also funded by the Millennium Institute of Oceanography (IMO), MINECON IC120019 during the preparation of this manuscript. |
We thank Pamela Tapia and Christian Tapia at Invertec–Ostimar Hatchery and fieldwork facilities. We extend our acknowledgment to Jorge López, and Paulina Contreras for their valuable assistance during the experiments and fieldwork. We thank two anonymous reviewers for insightful criticisms to the manuscript. This study was supported by the Millennium Nucleus Center for the Study of Multiple drivers on Marine Socio-Ecological Systems (MUSELS) funded by MINECON NC120086 and FONDECYT grant nos. 1140938 and 1140092 to N.A.L. and M.A.L., and 1130254 to CAV. CAV was also funded by the Millennium Institute of Oceanography (IMO), MINECON IC120019 during the preparation of this manuscript. |