Acute and chronic effects of cadmium on blood homeostasis of an estuarine crab, Chasmagnathus granulata, and the modifying effect of salinity
Whole body oxygen consumption and some hemolymph parameters such as pH, partial pressure of gases, level of ions and lactate were measured in the estuarine crab Chasmagnathus granulata after both acute (96 h) and chronic (2 weeks) exposure to cadmium at concentrations ranging from 0.4 to 6.3 mg/l. I...
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2001
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0100879X_v34_n4_p509_Rodriguez http://hdl.handle.net/20.500.12110/paper_0100879X_v34_n4_p509_Rodriguez |
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paper:paper_0100879X_v34_n4_p509_Rodriguez2023-06-08T15:10:16Z Acute and chronic effects of cadmium on blood homeostasis of an estuarine crab, Chasmagnathus granulata, and the modifying effect of salinity Rodriguez, Enrique Marcelo Bigi, Roxana I. Medesani, Daniel Alberto Monserrat, José María Pellerano, Gladys Norma Ansaldo, Martín Blood homeostasis Cadmium Crabs Salinity cadmium lactic acid acidosis acute toxicity animal experiment article blood toxicity chasmagnathus granulata chronic toxicity concentration (parameters) controlled study crab gas analysis gill hemolymph homeostasis hypoxia long term exposure necrosis nonhuman oxygen consumption pH salinity telangiectasia Whole body oxygen consumption and some hemolymph parameters such as pH, partial pressure of gases, level of ions and lactate were measured in the estuarine crab Chasmagnathus granulata after both acute (96 h) and chronic (2 weeks) exposure to cadmium at concentrations ranging from 0.4 to 6.3 mg/l. In all instances, the crabs developed hemolymph acidosis, but no respiratory (increased PCO2) or lactate increases were evident. Hemolymph levels of sodium and calcium were always increased by cadmium exposure. The chronic toxicity of cadmium was enhanced at 12%o salinity, even causing a significantly higher mortality in comparison with the higher salinity (30%o) used. A general metabolic arrest took place at 12%o salinity in the crabs chronically exposed to cadmium, as indicated by decreases of oxygen consumption and PCO2, an increase of PO2, along with no changes in lactate levels. These imbalances were associated with severe necrosis and telangiectasia in the respiratory gills, probably leading to respiratory impairment and finally histotoxic hypoxia and death of the animal. Fil:Rodríguez, E.M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Bigi, R. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Medesani, D.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Monserrat, J.M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Pellerano, G.N. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Ansaldo, M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2001 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0100879X_v34_n4_p509_Rodriguez http://hdl.handle.net/20.500.12110/paper_0100879X_v34_n4_p509_Rodriguez |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Blood homeostasis Cadmium Crabs Salinity cadmium lactic acid acidosis acute toxicity animal experiment article blood toxicity chasmagnathus granulata chronic toxicity concentration (parameters) controlled study crab gas analysis gill hemolymph homeostasis hypoxia long term exposure necrosis nonhuman oxygen consumption pH salinity telangiectasia |
| spellingShingle |
Blood homeostasis Cadmium Crabs Salinity cadmium lactic acid acidosis acute toxicity animal experiment article blood toxicity chasmagnathus granulata chronic toxicity concentration (parameters) controlled study crab gas analysis gill hemolymph homeostasis hypoxia long term exposure necrosis nonhuman oxygen consumption pH salinity telangiectasia Rodriguez, Enrique Marcelo Bigi, Roxana I. Medesani, Daniel Alberto Monserrat, José María Pellerano, Gladys Norma Ansaldo, Martín Acute and chronic effects of cadmium on blood homeostasis of an estuarine crab, Chasmagnathus granulata, and the modifying effect of salinity |
| topic_facet |
Blood homeostasis Cadmium Crabs Salinity cadmium lactic acid acidosis acute toxicity animal experiment article blood toxicity chasmagnathus granulata chronic toxicity concentration (parameters) controlled study crab gas analysis gill hemolymph homeostasis hypoxia long term exposure necrosis nonhuman oxygen consumption pH salinity telangiectasia |
| description |
Whole body oxygen consumption and some hemolymph parameters such as pH, partial pressure of gases, level of ions and lactate were measured in the estuarine crab Chasmagnathus granulata after both acute (96 h) and chronic (2 weeks) exposure to cadmium at concentrations ranging from 0.4 to 6.3 mg/l. In all instances, the crabs developed hemolymph acidosis, but no respiratory (increased PCO2) or lactate increases were evident. Hemolymph levels of sodium and calcium were always increased by cadmium exposure. The chronic toxicity of cadmium was enhanced at 12%o salinity, even causing a significantly higher mortality in comparison with the higher salinity (30%o) used. A general metabolic arrest took place at 12%o salinity in the crabs chronically exposed to cadmium, as indicated by decreases of oxygen consumption and PCO2, an increase of PO2, along with no changes in lactate levels. These imbalances were associated with severe necrosis and telangiectasia in the respiratory gills, probably leading to respiratory impairment and finally histotoxic hypoxia and death of the animal. |
| author |
Rodriguez, Enrique Marcelo Bigi, Roxana I. Medesani, Daniel Alberto Monserrat, José María Pellerano, Gladys Norma Ansaldo, Martín |
| author_facet |
Rodriguez, Enrique Marcelo Bigi, Roxana I. Medesani, Daniel Alberto Monserrat, José María Pellerano, Gladys Norma Ansaldo, Martín |
| author_sort |
Rodriguez, Enrique Marcelo |
| title |
Acute and chronic effects of cadmium on blood homeostasis of an estuarine crab, Chasmagnathus granulata, and the modifying effect of salinity |
| title_short |
Acute and chronic effects of cadmium on blood homeostasis of an estuarine crab, Chasmagnathus granulata, and the modifying effect of salinity |
| title_full |
Acute and chronic effects of cadmium on blood homeostasis of an estuarine crab, Chasmagnathus granulata, and the modifying effect of salinity |
| title_fullStr |
Acute and chronic effects of cadmium on blood homeostasis of an estuarine crab, Chasmagnathus granulata, and the modifying effect of salinity |
| title_full_unstemmed |
Acute and chronic effects of cadmium on blood homeostasis of an estuarine crab, Chasmagnathus granulata, and the modifying effect of salinity |
| title_sort |
acute and chronic effects of cadmium on blood homeostasis of an estuarine crab, chasmagnathus granulata, and the modifying effect of salinity |
| publishDate |
2001 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0100879X_v34_n4_p509_Rodriguez http://hdl.handle.net/20.500.12110/paper_0100879X_v34_n4_p509_Rodriguez |
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