Effects of temperature and ocean acidification on shell characteristics of Argopecten purpuratus: implications for scallop aquaculture in an upwelling-influenced area
Indexación: Web of Science Coastal upwelling regions already constitute hot spots of ocean acidification as naturally acidified waters are brought to the surface. This effect could be exacerbated by ocean acidification and warming, both caused by rising concentrations of atmospheric CO2. Along the C...
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INTER-RESEARCH
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Online Access: | http://repositorio.unab.cl/xmlui/handle/ria/1143 https://doi.org/10.3354/aei00183 |
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ftunivabello:oai:repositorio.unab.cl:ria/1143 2023-05-15T17:49:57+02:00 Effects of temperature and ocean acidification on shell characteristics of Argopecten purpuratus: implications for scallop aquaculture in an upwelling-influenced area Lagos, Nelson A. Benítez, Samanta Duarte, Cristian Lardies, Marco A. Broitman, Bernardo R. Tapia, Christian Tapia, Pamela Widdicombe, Steve Vargas, Cristian A. 2016 application/pdf http://repositorio.unab.cl/xmlui/handle/ria/1143 https://doi.org/10.3354/aei00183 en eng INTER-RESEARCH AEI 8:357-370 (2016) 1869-215X doi:10.3354/aei00183 http://repositorio.unab.cl/xmlui/handle/ria/1143 Calcification Shell growth Scallop farming Upwelling Chile MUSSEL MYTILUS-CHILENSIS OYSTERS CRASSOSTREA-VIRGINICA CARBON-DIOXIDE CONCENTRATIONS CLIMATE-CHANGE GLOBAL CHANGE PLACOPECTEN-MAGELLANICUS MARINE-INVERTEBRATES PACIFIC OYSTER CURRENT SYSTEM GROWTH Article 2016 ftunivabello https://doi.org/10.3354/aei00183 2022-12-27T17:05:21Z Indexación: Web of Science Coastal upwelling regions already constitute hot spots of ocean acidification as naturally acidified waters are brought to the surface. This effect could be exacerbated by ocean acidification and warming, both caused by rising concentrations of atmospheric CO2. Along the Chilean coast, upwelling supports highly productive fisheries and aquaculture activities. However, during recent years, there has been a documented decline in the national production of the native scallop Argopecten purpuratus. We assessed the combined effects of temperature and pCO(2)-driven ocean acidification on the growth rates and shell characteristics of this species farmed under the natural influence of upwelling waters occurring in northern Chile (30 degrees S, Tongoy Bay). The experimental scenario representing current conditions (14 degrees C, pH similar to 8.0) were typical of natural values recorded in Tongoy Bay, whilst conditions representing the low pH scenario were typical of an adjacent upwelling area (pH similar to 7.6). Shell thickness, weight, and biomass were reduced under low pH (pH similar to 7.7) and increased temperature (18 degrees C) conditions. At ambient temperature (14 degrees C) and low pH, scallops showed increased shell dissolution and low growth rates. However, elevated temperatures ameliorated the impacts of low pH, as evidenced by growth rates in both pH treatments at the higher temperature treatment that were not significantly different from the control treatment. The impact of low pH at current temperature on scallop growth suggests that the upwelling could increase the time required for scallops to reach marketable size. Mortality of farmed scallops is discussed in relation to our observations of multiple environmental stressors in this upwelling-influenced area. http://www.int-res.com/abstracts/aei/v8/p357-370/ Article in Journal/Newspaper Ocean acidification Pacific oyster Universidad Andrés Bello: Repositorio Institucional Académico Pacific Aquaculture Environment Interactions 8 357 370 |
institution |
Open Polar |
collection |
Universidad Andrés Bello: Repositorio Institucional Académico |
op_collection_id |
ftunivabello |
language |
English |
topic |
Calcification Shell growth Scallop farming Upwelling Chile MUSSEL MYTILUS-CHILENSIS OYSTERS CRASSOSTREA-VIRGINICA CARBON-DIOXIDE CONCENTRATIONS CLIMATE-CHANGE GLOBAL CHANGE PLACOPECTEN-MAGELLANICUS MARINE-INVERTEBRATES PACIFIC OYSTER CURRENT SYSTEM GROWTH |
spellingShingle |
Calcification Shell growth Scallop farming Upwelling Chile MUSSEL MYTILUS-CHILENSIS OYSTERS CRASSOSTREA-VIRGINICA CARBON-DIOXIDE CONCENTRATIONS CLIMATE-CHANGE GLOBAL CHANGE PLACOPECTEN-MAGELLANICUS MARINE-INVERTEBRATES PACIFIC OYSTER CURRENT SYSTEM GROWTH Lagos, Nelson A. Benítez, Samanta Duarte, Cristian Lardies, Marco A. Broitman, Bernardo R. Tapia, Christian Tapia, Pamela Widdicombe, Steve Vargas, Cristian A. Effects of temperature and ocean acidification on shell characteristics of Argopecten purpuratus: implications for scallop aquaculture in an upwelling-influenced area |
topic_facet |
Calcification Shell growth Scallop farming Upwelling Chile MUSSEL MYTILUS-CHILENSIS OYSTERS CRASSOSTREA-VIRGINICA CARBON-DIOXIDE CONCENTRATIONS CLIMATE-CHANGE GLOBAL CHANGE PLACOPECTEN-MAGELLANICUS MARINE-INVERTEBRATES PACIFIC OYSTER CURRENT SYSTEM GROWTH |
description |
Indexación: Web of Science Coastal upwelling regions already constitute hot spots of ocean acidification as naturally acidified waters are brought to the surface. This effect could be exacerbated by ocean acidification and warming, both caused by rising concentrations of atmospheric CO2. Along the Chilean coast, upwelling supports highly productive fisheries and aquaculture activities. However, during recent years, there has been a documented decline in the national production of the native scallop Argopecten purpuratus. We assessed the combined effects of temperature and pCO(2)-driven ocean acidification on the growth rates and shell characteristics of this species farmed under the natural influence of upwelling waters occurring in northern Chile (30 degrees S, Tongoy Bay). The experimental scenario representing current conditions (14 degrees C, pH similar to 8.0) were typical of natural values recorded in Tongoy Bay, whilst conditions representing the low pH scenario were typical of an adjacent upwelling area (pH similar to 7.6). Shell thickness, weight, and biomass were reduced under low pH (pH similar to 7.7) and increased temperature (18 degrees C) conditions. At ambient temperature (14 degrees C) and low pH, scallops showed increased shell dissolution and low growth rates. However, elevated temperatures ameliorated the impacts of low pH, as evidenced by growth rates in both pH treatments at the higher temperature treatment that were not significantly different from the control treatment. The impact of low pH at current temperature on scallop growth suggests that the upwelling could increase the time required for scallops to reach marketable size. Mortality of farmed scallops is discussed in relation to our observations of multiple environmental stressors in this upwelling-influenced area. http://www.int-res.com/abstracts/aei/v8/p357-370/ |
format |
Article in Journal/Newspaper |
author |
Lagos, Nelson A. Benítez, Samanta Duarte, Cristian Lardies, Marco A. Broitman, Bernardo R. Tapia, Christian Tapia, Pamela Widdicombe, Steve Vargas, Cristian A. |
author_facet |
Lagos, Nelson A. Benítez, Samanta Duarte, Cristian Lardies, Marco A. Broitman, Bernardo R. Tapia, Christian Tapia, Pamela Widdicombe, Steve Vargas, Cristian A. |
author_sort |
Lagos, Nelson A. |
title |
Effects of temperature and ocean acidification on shell characteristics of Argopecten purpuratus: implications for scallop aquaculture in an upwelling-influenced area |
title_short |
Effects of temperature and ocean acidification on shell characteristics of Argopecten purpuratus: implications for scallop aquaculture in an upwelling-influenced area |
title_full |
Effects of temperature and ocean acidification on shell characteristics of Argopecten purpuratus: implications for scallop aquaculture in an upwelling-influenced area |
title_fullStr |
Effects of temperature and ocean acidification on shell characteristics of Argopecten purpuratus: implications for scallop aquaculture in an upwelling-influenced area |
title_full_unstemmed |
Effects of temperature and ocean acidification on shell characteristics of Argopecten purpuratus: implications for scallop aquaculture in an upwelling-influenced area |
title_sort |
effects of temperature and ocean acidification on shell characteristics of argopecten purpuratus: implications for scallop aquaculture in an upwelling-influenced area |
publisher |
INTER-RESEARCH |
publishDate |
2016 |
url |
http://repositorio.unab.cl/xmlui/handle/ria/1143 https://doi.org/10.3354/aei00183 |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
Ocean acidification Pacific oyster |
genre_facet |
Ocean acidification Pacific oyster |
op_relation |
AEI 8:357-370 (2016) 1869-215X doi:10.3354/aei00183 http://repositorio.unab.cl/xmlui/handle/ria/1143 |
op_doi |
https://doi.org/10.3354/aei00183 |
container_title |
Aquaculture Environment Interactions |
container_volume |
8 |
container_start_page |
357 |
op_container_end_page |
370 |
_version_ |
1766156481762164736 |