Dietary copper effects in the estuarine crab, Neohelice (Chasmagnathus) granulata, maintained at two different salinities
We analyzed the dietary copper effects in the estuarine crab Neohelice (Chasmagnathus) granulata and its interaction with water salinity. Crabs were maintained at 2‰ and 30‰ salinity for 5 weeks and they were fed with commercial food supplemented with the green alga Scenedesmus vacuolatus previously...
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todo:paper_15320456_v150_n4_p521_Sabatini2023-10-03T16:21:28Z Dietary copper effects in the estuarine crab, Neohelice (Chasmagnathus) granulata, maintained at two different salinities Sabatini, S.E. Chaufan, G. Juárez, Á.B. Coalova, I. Bianchi, L. Eppis, M.R. Ríos de Molina, M.d.C. Dietary copper uptake Neohelice (Chasmagnathus) granulata Oxidative stress Salinity Scenedesmus vacuolatus Trophic chain copper glutathione superoxide dismutase alga article controlled study crab dietary intake environmental exposure enzyme activity estuarine species lipid peroxidation metal tolerance Neohelice granulata nonhuman oxidation oxidative stress priority journal salinity water contamination water quality Acclimatization Animals Brachyura Copper Dose-Response Relationship, Drug Glutathione Hepatopancreas Lipid Peroxidation Male Oxidation-Reduction Oxidative Stress Proteins Reference Standards Rivers Salinity Sodium Chloride Solubility Superoxide Dismutase Time Factors Animalia Chasmagnathus Chlorophyta Decapoda (Crustacea) Scenedesmus vacuolatus We analyzed the dietary copper effects in the estuarine crab Neohelice (Chasmagnathus) granulata and its interaction with water salinity. Crabs were maintained at 2‰ and 30‰ salinity for 5 weeks and they were fed with commercial food supplemented with the green alga Scenedesmus vacuolatus previously exposed to copper. No mortalities were observed, but crabs maintained at 2‰ salinity accumulated on average 40% more copper compared to animals maintained at 30‰ salinity. At 2‰ salinity, superoxide dismutase (SOD) activity and reduced glutathione (GSH) levels were increased at the first and second weeks, respectively, while lipid peroxidation and protein oxidation were evident after 4 weeks of copper exposure. At 30‰ salinity, all measured variables increased progressively but were significantly higher only at the end of the assay (5th week), except for protein oxidation that remained unchanged throughout the experiment. The hepatosomatic index (HSI) was significantly decreased in response to copper exposure, but only in crabs acclimated to 2‰. These findings have suggested that dietary copper exposure induces greater metal accumulation and larger oxidative stress responses in crabs maintained at 2‰ salinity. © 2009 Elsevier Inc. All rights reserved. Fil:Sabatini, S.E. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Chaufan, G. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Juárez, Á.B. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Coalova, I. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Ríos de Molina, M.d.C. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_15320456_v150_n4_p521_Sabatini |
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Universidad de Buenos Aires |
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I-28 |
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R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Dietary copper uptake Neohelice (Chasmagnathus) granulata Oxidative stress Salinity Scenedesmus vacuolatus Trophic chain copper glutathione superoxide dismutase alga article controlled study crab dietary intake environmental exposure enzyme activity estuarine species lipid peroxidation metal tolerance Neohelice granulata nonhuman oxidation oxidative stress priority journal salinity water contamination water quality Acclimatization Animals Brachyura Copper Dose-Response Relationship, Drug Glutathione Hepatopancreas Lipid Peroxidation Male Oxidation-Reduction Oxidative Stress Proteins Reference Standards Rivers Salinity Sodium Chloride Solubility Superoxide Dismutase Time Factors Animalia Chasmagnathus Chlorophyta Decapoda (Crustacea) Scenedesmus vacuolatus |
| spellingShingle |
Dietary copper uptake Neohelice (Chasmagnathus) granulata Oxidative stress Salinity Scenedesmus vacuolatus Trophic chain copper glutathione superoxide dismutase alga article controlled study crab dietary intake environmental exposure enzyme activity estuarine species lipid peroxidation metal tolerance Neohelice granulata nonhuman oxidation oxidative stress priority journal salinity water contamination water quality Acclimatization Animals Brachyura Copper Dose-Response Relationship, Drug Glutathione Hepatopancreas Lipid Peroxidation Male Oxidation-Reduction Oxidative Stress Proteins Reference Standards Rivers Salinity Sodium Chloride Solubility Superoxide Dismutase Time Factors Animalia Chasmagnathus Chlorophyta Decapoda (Crustacea) Scenedesmus vacuolatus Sabatini, S.E. Chaufan, G. Juárez, Á.B. Coalova, I. Bianchi, L. Eppis, M.R. Ríos de Molina, M.d.C. Dietary copper effects in the estuarine crab, Neohelice (Chasmagnathus) granulata, maintained at two different salinities |
| topic_facet |
Dietary copper uptake Neohelice (Chasmagnathus) granulata Oxidative stress Salinity Scenedesmus vacuolatus Trophic chain copper glutathione superoxide dismutase alga article controlled study crab dietary intake environmental exposure enzyme activity estuarine species lipid peroxidation metal tolerance Neohelice granulata nonhuman oxidation oxidative stress priority journal salinity water contamination water quality Acclimatization Animals Brachyura Copper Dose-Response Relationship, Drug Glutathione Hepatopancreas Lipid Peroxidation Male Oxidation-Reduction Oxidative Stress Proteins Reference Standards Rivers Salinity Sodium Chloride Solubility Superoxide Dismutase Time Factors Animalia Chasmagnathus Chlorophyta Decapoda (Crustacea) Scenedesmus vacuolatus |
| description |
We analyzed the dietary copper effects in the estuarine crab Neohelice (Chasmagnathus) granulata and its interaction with water salinity. Crabs were maintained at 2‰ and 30‰ salinity for 5 weeks and they were fed with commercial food supplemented with the green alga Scenedesmus vacuolatus previously exposed to copper. No mortalities were observed, but crabs maintained at 2‰ salinity accumulated on average 40% more copper compared to animals maintained at 30‰ salinity. At 2‰ salinity, superoxide dismutase (SOD) activity and reduced glutathione (GSH) levels were increased at the first and second weeks, respectively, while lipid peroxidation and protein oxidation were evident after 4 weeks of copper exposure. At 30‰ salinity, all measured variables increased progressively but were significantly higher only at the end of the assay (5th week), except for protein oxidation that remained unchanged throughout the experiment. The hepatosomatic index (HSI) was significantly decreased in response to copper exposure, but only in crabs acclimated to 2‰. These findings have suggested that dietary copper exposure induces greater metal accumulation and larger oxidative stress responses in crabs maintained at 2‰ salinity. © 2009 Elsevier Inc. All rights reserved. |
| format |
JOUR |
| author |
Sabatini, S.E. Chaufan, G. Juárez, Á.B. Coalova, I. Bianchi, L. Eppis, M.R. Ríos de Molina, M.d.C. |
| author_facet |
Sabatini, S.E. Chaufan, G. Juárez, Á.B. Coalova, I. Bianchi, L. Eppis, M.R. Ríos de Molina, M.d.C. |
| author_sort |
Sabatini, S.E. |
| title |
Dietary copper effects in the estuarine crab, Neohelice (Chasmagnathus) granulata, maintained at two different salinities |
| title_short |
Dietary copper effects in the estuarine crab, Neohelice (Chasmagnathus) granulata, maintained at two different salinities |
| title_full |
Dietary copper effects in the estuarine crab, Neohelice (Chasmagnathus) granulata, maintained at two different salinities |
| title_fullStr |
Dietary copper effects in the estuarine crab, Neohelice (Chasmagnathus) granulata, maintained at two different salinities |
| title_full_unstemmed |
Dietary copper effects in the estuarine crab, Neohelice (Chasmagnathus) granulata, maintained at two different salinities |
| title_sort |
dietary copper effects in the estuarine crab, neohelice (chasmagnathus) granulata, maintained at two different salinities |
| url |
http://hdl.handle.net/20.500.12110/paper_15320456_v150_n4_p521_Sabatini |
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