Toxicity of cadmium and copper on larval and juvenile stages of the estuarine crab Chasmagnathus granulata (Brachyura, Grapsidae)

The toxicity of cadmium and copper were assayed in the estuarine crab Chasmagnathus granulata. Acute assays were made on the first larvae stage, and both acute and chronic assays were made on juvenile crabs. The acute lethal toxicity of the assayed heavy metals was three orders of magnitude higher i...

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Autores principales:	Greco, L.S.L., Sánchez, M.V., Nicoloso, G.L., Medesani, D.A., Rodríguez, E.M.
Formato:	JOUR
Materias:	cadmium copper heavy metal crab developmental stage estuarine pollution toxicity animal experiment article chasmagnathus granulata controlled study detoxification estuary larva molting mortality nonhuman priority journal toxicity testing Animals Biological Assay Brachyura Cadmium Copper Larva Molting Water Pollutants Animalia Chasmagnathus granulata Decapoda (Crustacea) Grapsidae Invertebrata
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_00904341_v41_n3_p333_Greco
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

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spelling	todo:paper_00904341_v41_n3_p333_Greco2023-10-03T14:54:36Z Toxicity of cadmium and copper on larval and juvenile stages of the estuarine crab Chasmagnathus granulata (Brachyura, Grapsidae) Greco, L.S.L. Sánchez, M.V. Nicoloso, G.L. Medesani, D.A. Rodríguez, E.M. cadmium copper heavy metal cadmium copper crab developmental stage estuarine pollution toxicity animal experiment article chasmagnathus granulata controlled study crab detoxification estuary larva molting mortality nonhuman priority journal toxicity testing Animals Biological Assay Brachyura Cadmium Copper Larva Molting Water Pollutants Animalia Brachyura Chasmagnathus granulata Decapoda (Crustacea) Grapsidae Invertebrata The toxicity of cadmium and copper were assayed in the estuarine crab Chasmagnathus granulata. Acute assays were made on the first larvae stage, and both acute and chronic assays were made on juvenile crabs. The acute lethal toxicity of the assayed heavy metals was three orders of magnitude higher in larvae than in juveniles. Cadmium proved to be more toxic than copper in most cases; this difference was more evident in the chronic assays on juveniles, according to the nonphysiological feature of cadmium and its persistent accumulation in organisms. During these chronic assays, cadmium produced both a significant mortality and a clear retardation of molting, in accordance with its inhibitory effect on the molting process as previously reported. Copper only caused a molting acceleration during chronic assays, perhaps as a detoxifying mechanism. Heavy metal concentrations having effects in the chronic assays have been reported in some sectors of the estuary where the assayed species lives. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00904341_v41_n3_p333_Greco
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	cadmium copper heavy metal cadmium copper crab developmental stage estuarine pollution toxicity animal experiment article chasmagnathus granulata controlled study crab detoxification estuary larva molting mortality nonhuman priority journal toxicity testing Animals Biological Assay Brachyura Cadmium Copper Larva Molting Water Pollutants Animalia Brachyura Chasmagnathus granulata Decapoda (Crustacea) Grapsidae Invertebrata
spellingShingle	cadmium copper heavy metal cadmium copper crab developmental stage estuarine pollution toxicity animal experiment article chasmagnathus granulata controlled study crab detoxification estuary larva molting mortality nonhuman priority journal toxicity testing Animals Biological Assay Brachyura Cadmium Copper Larva Molting Water Pollutants Animalia Brachyura Chasmagnathus granulata Decapoda (Crustacea) Grapsidae Invertebrata Greco, L.S.L. Sánchez, M.V. Nicoloso, G.L. Medesani, D.A. Rodríguez, E.M. Toxicity of cadmium and copper on larval and juvenile stages of the estuarine crab Chasmagnathus granulata (Brachyura, Grapsidae)
topic_facet	cadmium copper heavy metal cadmium copper crab developmental stage estuarine pollution toxicity animal experiment article chasmagnathus granulata controlled study crab detoxification estuary larva molting mortality nonhuman priority journal toxicity testing Animals Biological Assay Brachyura Cadmium Copper Larva Molting Water Pollutants Animalia Brachyura Chasmagnathus granulata Decapoda (Crustacea) Grapsidae Invertebrata
description	The toxicity of cadmium and copper were assayed in the estuarine crab Chasmagnathus granulata. Acute assays were made on the first larvae stage, and both acute and chronic assays were made on juvenile crabs. The acute lethal toxicity of the assayed heavy metals was three orders of magnitude higher in larvae than in juveniles. Cadmium proved to be more toxic than copper in most cases; this difference was more evident in the chronic assays on juveniles, according to the nonphysiological feature of cadmium and its persistent accumulation in organisms. During these chronic assays, cadmium produced both a significant mortality and a clear retardation of molting, in accordance with its inhibitory effect on the molting process as previously reported. Copper only caused a molting acceleration during chronic assays, perhaps as a detoxifying mechanism. Heavy metal concentrations having effects in the chronic assays have been reported in some sectors of the estuary where the assayed species lives.
format	JOUR
author	Greco, L.S.L. Sánchez, M.V. Nicoloso, G.L. Medesani, D.A. Rodríguez, E.M.
author_facet	Greco, L.S.L. Sánchez, M.V. Nicoloso, G.L. Medesani, D.A. Rodríguez, E.M.
author_sort	Greco, L.S.L.
title	Toxicity of cadmium and copper on larval and juvenile stages of the estuarine crab Chasmagnathus granulata (Brachyura, Grapsidae)
title_short	Toxicity of cadmium and copper on larval and juvenile stages of the estuarine crab Chasmagnathus granulata (Brachyura, Grapsidae)
title_full	Toxicity of cadmium and copper on larval and juvenile stages of the estuarine crab Chasmagnathus granulata (Brachyura, Grapsidae)
title_fullStr	Toxicity of cadmium and copper on larval and juvenile stages of the estuarine crab Chasmagnathus granulata (Brachyura, Grapsidae)
title_full_unstemmed	Toxicity of cadmium and copper on larval and juvenile stages of the estuarine crab Chasmagnathus granulata (Brachyura, Grapsidae)
title_sort	toxicity of cadmium and copper on larval and juvenile stages of the estuarine crab chasmagnathus granulata (brachyura, grapsidae)
url	http://hdl.handle.net/20.500.12110/paper_00904341_v41_n3_p333_Greco
work_keys_str_mv	AT grecolsl toxicityofcadmiumandcopperonlarvalandjuvenilestagesoftheestuarinecrabchasmagnathusgranulatabrachyuragrapsidae AT sanchezmv toxicityofcadmiumandcopperonlarvalandjuvenilestagesoftheestuarinecrabchasmagnathusgranulatabrachyuragrapsidae AT nicolosogl toxicityofcadmiumandcopperonlarvalandjuvenilestagesoftheestuarinecrabchasmagnathusgranulatabrachyuragrapsidae AT medesanida toxicityofcadmiumandcopperonlarvalandjuvenilestagesoftheestuarinecrabchasmagnathusgranulatabrachyuragrapsidae AT rodriguezem toxicityofcadmiumandcopperonlarvalandjuvenilestagesoftheestuarinecrabchasmagnathusgranulatabrachyuragrapsidae
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Toxicity of cadmium and copper on larval and juvenile stages of the estuarine crab Chasmagnathus granulata (Brachyura, Grapsidae)

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