Histopathological markers of environmental stress in the fish Odonthestes bonariensis (Atheriniformes, Atherinopsidae) in two reservoirs of Argentina
The Cabra Corral reservoir is the main recreational and sport fishing area of northwest Argentina, with a great interest in the preservation of its environmental conditions. From the Arenales river, the Cabra Corral receives organic matter from domestic and industrial effluents, as well as livestock and agricultural activities of the Lerma Valley. To this is added an important contribution of minerals from the Guachipas river. High levels of mercury and cadmium have been found in this body of water. We assess the health conditions of Odonthestes bonariensis of the Cabra Corral reservoir, which are subject to a very high anthropic impact in relation to the populations of the species in another reservoir of the province, such as the Campo Alegre reservoir. We analyzed histopathological markers in white organs in order to establish if there are differences between the two bodies of water. We performed bi-monthly samplings, extracting samples of liver, kidney and gills, which were processed with routine histological techniques. In addition, water samples were analyzed for quality. In the Cabra Corral reservoir, we found a large number of histopathologies, where the liver was the most affected organ, followed by the kidney and, to a lesser extent, the gills. In the Campo Alegre reservoir, we found a lower proportion of histopathologies. Liver and kidney parasites caused by coccidia associated with inflammatory processes are reported in fish population in Cabra Corral area. The identification and evaluation of histopathological markers confirmed that there are marked differences in the health status of O. bonariensis between the two reservoirs.
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Universidad Estatal a Distancia, Costa Rica
2018
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Leone, Oscar Valdecantos, Soledad Martínez, Virginia |
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Leone, Oscar Valdecantos, Soledad Martínez, Virginia Histopathological markers of environmental stress in the fish Odonthestes bonariensis (Atheriniformes, Atherinopsidae) in two reservoirs of Argentina |
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Leone, Oscar Valdecantos, Soledad Martínez, Virginia |
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Leone, Oscar |
| title |
Histopathological markers of environmental stress in the fish Odonthestes bonariensis (Atheriniformes, Atherinopsidae) in two reservoirs of Argentina |
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Histopathological markers of environmental stress in the fish Odonthestes bonariensis (Atheriniformes, Atherinopsidae) in two reservoirs of Argentina |
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Histopathological markers of environmental stress in the fish Odonthestes bonariensis (Atheriniformes, Atherinopsidae) in two reservoirs of Argentina |
| title_fullStr |
Histopathological markers of environmental stress in the fish Odonthestes bonariensis (Atheriniformes, Atherinopsidae) in two reservoirs of Argentina |
| title_full_unstemmed |
Histopathological markers of environmental stress in the fish Odonthestes bonariensis (Atheriniformes, Atherinopsidae) in two reservoirs of Argentina |
| title_sort |
histopathological markers of environmental stress in the fish odonthestes bonariensis (atheriniformes, atherinopsidae) in two reservoirs of argentina |
| description |
The Cabra Corral reservoir is the main recreational and sport fishing area of northwest Argentina, with a great interest in the preservation of its environmental conditions. From the Arenales river, the Cabra Corral receives organic matter from domestic and industrial effluents, as well as livestock and agricultural activities of the Lerma Valley. To this is added an important contribution of minerals from the Guachipas river. High levels of mercury and cadmium have been found in this body of water. We assess the health conditions of Odonthestes bonariensis of the Cabra Corral reservoir, which are subject to a very high anthropic impact in relation to the populations of the species in another reservoir of the province, such as the Campo Alegre reservoir. We analyzed histopathological markers in white organs in order to establish if there are differences between the two bodies of water. We performed bi-monthly samplings, extracting samples of liver, kidney and gills, which were processed with routine histological techniques. In addition, water samples were analyzed for quality. In the Cabra Corral reservoir, we found a large number of histopathologies, where the liver was the most affected organ, followed by the kidney and, to a lesser extent, the gills. In the Campo Alegre reservoir, we found a lower proportion of histopathologies. Liver and kidney parasites caused by coccidia associated with inflammatory processes are reported in fish population in Cabra Corral area. The identification and evaluation of histopathological markers confirmed that there are marked differences in the health status of O. bonariensis between the two reservoirs. |
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Universidad Estatal a Distancia, Costa Rica |
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2018 |
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https://revistas.uned.ac.cr/index.php/cuadernos/article/view/1909 |
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AT leoneoscar histopathologicalmarkersofenvironmentalstressinthefishodonthestesbonariensisatheriniformesatherinopsidaeintworeservoirsofargentina AT valdecantossoledad histopathologicalmarkersofenvironmentalstressinthefishodonthestesbonariensisatheriniformesatherinopsidaeintworeservoirsofargentina AT martinezvirginia histopathologicalmarkersofenvironmentalstressinthefishodonthestesbonariensisatheriniformesatherinopsidaeintworeservoirsofargentina AT leoneoscar marcadoreshistopatologicosdeestresambientalenelpezodonthestesbonariensisatheriniformesatherinopsidaeendosembalsesdeargentina AT valdecantossoledad marcadoreshistopatologicosdeestresambientalenelpezodonthestesbonariensisatheriniformesatherinopsidaeendosembalsesdeargentina AT martinezvirginia marcadoreshistopatologicosdeestresambientalenelpezodonthestesbonariensisatheriniformesatherinopsidaeendosembalsesdeargentina |
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oai:revistas.investiga.uned.ac.cr:article19092022-09-02T02:20:48Z Histopathological markers of environmental stress in the fish Odonthestes bonariensis (Atheriniformes, Atherinopsidae) in two reservoirs of Argentina Marcadores histopatológicos de estrés ambiental en el pez Odonthestes bonariensis (Atheriniformes, Atherinopsidae) en dos embalses de Argentina Leone, Oscar Valdecantos, Soledad Martínez, Virginia biomonitoring histopathological marker reservoir Odonthestes bonariensis biomonitoreo marcadores histopatológicos embalses Odonthestes bonariensis The Cabra Corral reservoir is the main recreational and sport fishing area of northwest Argentina, with a great interest in the preservation of its environmental conditions. From the Arenales river, the Cabra Corral receives organic matter from domestic and industrial effluents, as well as livestock and agricultural activities of the Lerma Valley. To this is added an important contribution of minerals from the Guachipas river. High levels of mercury and cadmium have been found in this body of water. We assess the health conditions of Odonthestes bonariensis of the Cabra Corral reservoir, which are subject to a very high anthropic impact in relation to the populations of the species in another reservoir of the province, such as the Campo Alegre reservoir. We analyzed histopathological markers in white organs in order to establish if there are differences between the two bodies of water. We performed bi-monthly samplings, extracting samples of liver, kidney and gills, which were processed with routine histological techniques. In addition, water samples were analyzed for quality. In the Cabra Corral reservoir, we found a large number of histopathologies, where the liver was the most affected organ, followed by the kidney and, to a lesser extent, the gills. In the Campo Alegre reservoir, we found a lower proportion of histopathologies. Liver and kidney parasites caused by coccidia associated with inflammatory processes are reported in fish population in Cabra Corral area. The identification and evaluation of histopathological markers confirmed that there are marked differences in the health status of O. bonariensis between the two reservoirs. El embalse Cabra Corral es el principal sitio de recreación y pesca deportiva del noroeste argentino, existe un gran interés en la preservación de sus condiciones ambientales. El Cabra Corral recibe desde el río Arenales materia orgánica proveniente de efluentes domiciliarios e industriales, como de actividades ganaderas y agrícolas que se desarrollan en el valle de Lerma; también recibe una importante contribución de minerales desde el río Guachipas. En este cuerpo de agua se ha encontrado altos niveles de mercurio y cadmio. Evaluamos las condiciones sanitarias de las poblaciones de Odonthestes bonariensis del embalse Cabra Corral, que presenta un alto impacto antrópico en relación con las poblaciones de otro embalse, el Campo Alegre con menor impacto antrópico. Analizamos marcadores histopatológicos en órganos blanco a fin de establecer si existen diferencias entre los dos cuerpos de agua. Realizamos muestreos bimensuales, se extrajeron muestras de hígado, riñón y branquias, las que se procesaron con técnicas histológicas de rutina; se analizaron muestras de agua para determinar su calidad. En el embalse Cabra Corral encontramos un gran número de histopatologías, el hígado es el órgano más afectado, seguido por el riñón y en menor medida las branquias. En el embalse Campo Alegre, las histopatologías también se hallaron pero en menor proporción. En el Cabra Corral se destacan las parasitosis hepáticas y renales causadas por coccidios asociados a procesos inflamatorios. La identificación y evaluación de los marcadores histopatológicos confirmó que existen marcadas diferencias en el estado de salud de las poblaciones de O. bonariensis entre los dos embalses estudiados. Universidad Estatal a Distancia, Costa Rica 2018-09-21 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf text/html application/epub+zip https://revistas.uned.ac.cr/index.php/cuadernos/article/view/1909 10.22458/urj.v10i2.1909 UNED Research Journal; Vol. 10 No. 2 (2018); 273-282 UNED Research Journal; Vol. 10 Núm. 2 (2018); 273-282 1659-441X 1659-4266 spa https://revistas.uned.ac.cr/index.php/cuadernos/article/view/1909/2525 https://revistas.uned.ac.cr/index.php/cuadernos/article/view/1909/2528 https://revistas.uned.ac.cr/index.php/cuadernos/article/view/1909/2531 Copyright (c) 2018 UNED Research Journal |