Modeling the benthic loading of particulate wastes from a gilthead seabream (Sparus aurata) farm during a complete rearing cycle
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Redalyc · Ciencias Marinas
The relationship between aquaculture activities and water quality plays an important role in determining the volume and quality of production as well as the impact of aquaculture on the aquatic environment. The natural assimilation capacity of a waterbody is often insufficient to cope with the conti...
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| Publicado en: | Ciencias Marinas |
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| Formato: | Artículo científico |
| Lenguaje: | en |
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Universidad Autónoma de Baja California
2016
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| _version_ | 1878325300204404736 |
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| author | Marc Mestres |
| author_facet | Marc Mestres |
| collection | Ciencias Marinas |
| container_title | Ciencias Marinas |
| contents | Modeling the benthic loading of particulate wastes from a gilthead seabream (Sparus aurata) farm during a complete rearing cycle Marc Mestres Wilson Chaperón Joan Pau Sierra Ciencias de la Tierra 3D modeling Sparus aurata Particulate wastes full rearing cycle loading assessment The relationship between aquaculture activities and water quality plays an important role in determining the volume and quality of production as well as the impact of aquaculture on the aquatic environment. The natural assimilation capacity of a waterbody is often insufficient to cope with the continuous input of wastes from fish farms. Their impact depends not only on the waste itself, but also on other factors such as the local hydrodynamics at the farm site or the cultured species’ feeding pattern. We combine a hydrodynamic model with a transport code to simulate the deposition of fecal pellets and uneaten feed from a gilthead seabream farm in the western Mediterranean Sea. The simulation spans a full 17-month rearing cycle and considers the natural variations in the feed demand of the fish during this period. The results indicated that the maximum benthic concentrations of organic matter and nutrients were found within a 100–500 m distance from the cages, depending on the type of particulate waste and on the local current characteristics. The combination of a long simulation period and realistic hydrodynamic patterns highlights the importance of considering long-term current variability when assessing the environmental impact of fish farms, and stresses the limitations of current simplistic assessment practices. 2016 artículo científico 0185-3880 https://www.redalyc.org/articulo.oa?id=48047473002 en http://www.redalyc.org/revista.oa?id=480 Ciencias Marinas application/pdf Universidad Autónoma de Baja California Ciencias Marinas (México) Num.3 Vol.42 |
| ctrlnum | oai:cienciasmarinas.com.mx:article/2594 10.7773/cm.v42i3.2594 |
| description | The relationship between aquaculture activities and water quality plays an important role in determining the volume and quality of production as well as the impact of aquaculture on the aquatic environment. The natural assimilation capacity of a waterbody is often insufficient to cope with the continuous input of wastes from fish farms. Their impact depends not only on the waste itself, but also on other factors such as the local hydrodynamics at the farm site or the cultured species’ feeding pattern. We combine a hydrodynamic model with a transport code to simulate the deposition of fecal pellets and uneaten feed from a gilthead seabream farm in the western Mediterranean Sea. The simulation spans a full 17-month rearing cycle and considers the natural variations in the feed demand of the fish during this period. The results indicated that the maximum benthic concentrations of organic matter and nutrients were found within a 100–500 m distance from the cages, depending on the type of particulate waste and on the local current characteristics. The combination of a long simulation period and realistic hydrodynamic patterns highlights the importance of considering long-term current variability when assessing the environmental impact of fish farms, and stresses the limitations of current simplistic assessment practices.
La relación entre la acuicultura y calidad del agua juega un rol determinante tanto en el volumen y calidad de la producción acuícola como en los impactos de la acuicultura en el medio marino. La capacidad natural de asimilación del cuerpo de agua puede ser insuficiente para adaptarse a la entrada continua de residuos procedentes de granjas piscícolas. Su impacto no depende sólo de los residuos vertidos, sino también de otros factores tales como la hidrodinámica local o los patrones de alimentación de la especie cultivada. En este estudio se combina un modelo hidrodinámico con uno de transporte para simular la deposición de residuos particulados (heces y alimento no comido) procedentes de una granja de doradas en el Mediterráneo occidental durante los 17 meses de cultivo, teniendo en cuenta las variaciones naturales de la alimentación de los peces durante este periodo. Los resultados confirman que las mayores concentraciones bénticas de materia orgánica y nutrientes se producen en un radio de 100–500 m desde las jaulas, dependiendo del tipo de partícula y de las corrientes. La combinación de un periodo de simulación largo y patrones de circulación realistas subraya la importancia de considerar la variabilidad de las corrientes a largo plazo para evaluar el impacto ambiental de granjas de peces, y destaca las limitaciones de las actuales prácticas simplistas de evaluación del impacto. |
| format | Artículo científico |
| id | redalyc_48047473002 |
| institution | Redalyc Ciencias Marinas |
| language | en |
| publishDate | 2016 |
| publisher | Universidad Autónoma de Baja California |
| spelling | Modeling the benthic loading of particulate wastes from a gilthead seabream (Sparus aurata) farm during a complete rearing cycle Modelización del impacto bentónico de los residuos particulados provenientes de una granja de doradas (Sparus aurata) durante un ciclo completo de cultivo Mestres, Marc Chaperón, Wilson Sierra, Joan Pau The relationship between aquaculture activities and water quality plays an important role in determining the volume and quality of production as well as the impact of aquaculture on the aquatic environment. The natural assimilation capacity of a waterbody is often insufficient to cope with the continuous input of wastes from fish farms. Their impact depends not only on the waste itself, but also on other factors such as the local hydrodynamics at the farm site or the cultured species’ feeding pattern. We combine a hydrodynamic model with a transport code to simulate the deposition of fecal pellets and uneaten feed from a gilthead seabream farm in the western Mediterranean Sea. The simulation spans a full 17-month rearing cycle and considers the natural variations in the feed demand of the fish during this period. The results indicated that the maximum benthic concentrations of organic matter and nutrients were found within a 100–500 m distance from the cages, depending on the type of particulate waste and on the local current characteristics. The combination of a long simulation period and realistic hydrodynamic patterns highlights the importance of considering long-term current variability when assessing the environmental impact of fish farms, and stresses the limitations of current simplistic assessment practices. La relación entre la acuicultura y calidad del agua juega un rol determinante tanto en el volumen y calidad de la producción acuícola como en los impactos de la acuicultura en el medio marino. La capacidad natural de asimilación del cuerpo de agua puede ser insuficiente para adaptarse a la entrada continua de residuos procedentes de granjas piscícolas. Su impacto no depende sólo de los residuos vertidos, sino también de otros factores tales como la hidrodinámica local o los patrones de alimentación de la especie cultivada. En este estudio se combina un modelo hidrodinámico con uno de transporte para simular la deposición de residuos particulados (heces y alimento no comido) procedentes de una granja de doradas en el Mediterráneo occidental durante los 17 meses de cultivo, teniendo en cuenta las variaciones naturales de la alimentación de los peces durante este periodo. Los resultados confirman que las mayores concentraciones bénticas de materia orgánica y nutrientes se producen en un radio de 100–500 m desde las jaulas, dependiendo del tipo de partícula y de las corrientes. La combinación de un periodo de simulación largo y patrones de circulación realistas subraya la importancia de considerar la variabilidad de las corrientes a largo plazo para evaluar el impacto ambiental de granjas de peces, y destaca las limitaciones de las actuales prácticas simplistas de evaluación del impacto. Universidad Autónoma de Baja California, Instituto de Investigaciones Oceanológicas 2016-09-15 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article Artículo Arbitrado application/pdf https://cienciasmarinas.com.mx/index.php/cmarinas/article/view/2594 10.7773/cm.v42i3.2594 Ciencias Marinas; Vol. 42 No. 3 (2016); 179-194 Ciencias Marinas; Vol. 42 Núm. 3 (2016); 179-194 2395-9053 0185-3880 eng https://cienciasmarinas.com.mx/index.php/cmarinas/article/view/2594/1603 Copyright (c) 2016 Ciencias Marinas ['Redalyc'] redalyc_48047473002 Modeling the benthic loading of particulate wastes from a gilthead seabream (Sparus aurata) farm during a complete rearing cycle ['Modeling the benthic loading of particulate wastes from a gilthead seabream (Sparus aurata) farm during a complete rearing cycle', 'Marc Mestres', 'Ciencias de la Tierra', '3D modeling', 'Sparus aurata', 'Particulate wastes', 'full rearing cycle', 'loading assessment', 'Modeling the benthic loading of particulate wastes from a gilthead seabream (Sparus aurata) farm during a complete rearing cycle Marc Mestres Wilson Chaperón Joan Pau Sierra Ciencias de la Tierra 3D modeling Sparus aurata Particulate wastes full rearing cycle loading assessment The relationship between aquaculture activities and water quality plays an important role in determining the volume and quality of production as well as the impact of aquaculture on the aquatic environment. The natural assimilation capacity of a waterbody is often insufficient to cope with the continuous input of wastes from fish farms. Their impact depends not only on the waste itself, but also on other factors such as the local hydrodynamics at the farm site or the cultured species’ feeding pattern. We combine a hydrodynamic model with a transport code to simulate the deposition of fecal pellets and uneaten feed from a gilthead seabream farm in the western Mediterranean Sea. The simulation spans a full 17-month rearing cycle and considers the natural variations in the feed demand of the fish during this period. The results indicated that the maximum benthic concentrations of organic matter and nutrients were found within a 100–500 m distance from the cages, depending on the type of particulate waste and on the local current characteristics. The combination of a long simulation period and realistic hydrodynamic patterns highlights the importance of considering long-term current variability when assessing the environmental impact of fish farms, and stresses the limitations of current simplistic assessment practices. 2016 artículo científico 0185-3880 https://www.redalyc.org/articulo.oa?id=48047473002 en http://www.redalyc.org/revista.oa?id=480 Ciencias Marinas application/pdf Universidad Autónoma de Baja California Ciencias Marinas (México) Num.3 Vol.42'] ['Marc Mestres'] ['Marc Mestres'] ['Artículo científico'] ['2016'] ['Universidad Autónoma de Baja California'] ['en'] ['Ciencias de la Tierra', '3D modeling', 'Sparus aurata', 'Particulate wastes', 'full rearing cycle', 'loading assessment'] ['https://www.redalyc.org/articulo.oa?id=48047473002'] ['Modeling the benthic loading of particulate wastes from a gilthead seabream (Sparus aurata) farm during a complete rearing cycle Marc Mestres Wilson Chaperón Joan Pau Sierra Ciencias de la Tierra 3D modeling Sparus aurata Particulate wastes full rearing cycle loading assessment The relationship between aquaculture activities and water quality plays an important role in determining the volume and quality of production as well as the impact of aquaculture on the aquatic environment. The natural assimilation capacity of a waterbody is often insufficient to cope with the continuous input of wastes from fish farms. Their impact depends not only on the waste itself, but also on other factors such as the local hydrodynamics at the farm site or the cultured species’ feeding pattern. We combine a hydrodynamic model with a transport code to simulate the deposition of fecal pellets and uneaten feed from a gilthead seabream farm in the western Mediterranean Sea. The simulation spans a full 17-month rearing cycle and considers the natural variations in the feed demand of the fish during this period. The results indicated that the maximum benthic concentrations of organic matter and nutrients were found within a 100–500 m distance from the cages, depending on the type of particulate waste and on the local current characteristics. The combination of a long simulation period and realistic hydrodynamic patterns highlights the importance of considering long-term current variability when assessing the environmental impact of fish farms, and stresses the limitations of current simplistic assessment practices. 2016 artículo científico 0185-3880 https://www.redalyc.org/articulo.oa?id=48047473002 en http://www.redalyc.org/revista.oa?id=480 Ciencias Marinas application/pdf Universidad Autónoma de Baja California Ciencias Marinas (México) Num.3 Vol.42'] |
| spellingShingle | Modeling the benthic loading of particulate wastes from a gilthead seabream (Sparus aurata) farm during a complete rearing cycle Marc Mestres Ciencias de la Tierra 3D modeling Sparus aurata Particulate wastes full rearing cycle loading assessment Modeling the benthic loading of particulate wastes from a gilthead seabream (Sparus aurata) farm during a complete rearing cycle Marc Mestres Wilson Chaperón Joan Pau Sierra Ciencias de la Tierra 3D modeling Sparus aurata Particulate wastes full rearing cycle loading assessment The relationship between aquaculture activities and water quality plays an important role in determining the volume and quality of production as well as the impact of aquaculture on the aquatic environment. The natural assimilation capacity of a waterbody is often insufficient to cope with the continuous input of wastes from fish farms. Their impact depends not only on the waste itself, but also on other factors such as the local hydrodynamics at the farm site or the cultured species’ feeding pattern. We combine a hydrodynamic model with a transport code to simulate the deposition of fecal pellets and uneaten feed from a gilthead seabream farm in the western Mediterranean Sea. The simulation spans a full 17-month rearing cycle and considers the natural variations in the feed demand of the fish during this period. The results indicated that the maximum benthic concentrations of organic matter and nutrients were found within a 100–500 m distance from the cages, depending on the type of particulate waste and on the local current characteristics. The combination of a long simulation period and realistic hydrodynamic patterns highlights the importance of considering long-term current variability when assessing the environmental impact of fish farms, and stresses the limitations of current simplistic assessment practices. 2016 artículo científico 0185-3880 https://www.redalyc.org/articulo.oa?id=48047473002 en http://www.redalyc.org/revista.oa?id=480 Ciencias Marinas application/pdf Universidad Autónoma de Baja California Ciencias Marinas (México) Num.3 Vol.42 |
| title | Modeling the benthic loading of particulate wastes from a gilthead seabream (Sparus aurata) farm during a complete rearing cycle |
| title_alt | Modelización del impacto bentónico de los residuos particulados provenientes de una granja de doradas (Sparus aurata) durante un ciclo completo de cultivo |
| topic | Ciencias de la Tierra 3D modeling Sparus aurata Particulate wastes full rearing cycle loading assessment |
| url | https://www.redalyc.org/articulo.oa?id=48047473002 https://cienciasmarinas.com.mx/index.php/cmarinas/article/view/2594 |