Effects of lead and cadmium on hatching of the southern king crab lithodes santolla (Decapoda, Anomura)

Eggs of the king crab Lithodes santolla were exposed to cadmium (0.2 and 2 mg/1) and lead (0.16 and 1.6 mg/1) for 30 days. Concentrations used represented 1/10 and 1 of the respective LC50 values for zoea I of the studied species. Proportion of larvae hatching, meantime of eclosion and proportion of...

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Autores principales:	Amin, O.A., Rodriguez, E.M., Hernando, M., Comoglio, L.I., Lopez, L.S., Medesani, D.A.
Formato:	JOUR
Materias:	Decapod crustaceans Hatching Heavy metals Malformations Lithodes santolla
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_07924259_v33_n1_p81_Amin
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	todo:paper_07924259_v33_n1_p81_Amin
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spelling	todo:paper_07924259_v33_n1_p81_Amin2023-10-03T15:39:52Z Effects of lead and cadmium on hatching of the southern king crab lithodes santolla (Decapoda, Anomura) Amin, O.A. Rodriguez, E.M. Hernando, M. Comoglio, L.I. Lopez, L.S. Medesani, D.A. Decapod crustaceans Hatching Heavy metals Malformations Lithodes santolla Eggs of the king crab Lithodes santolla were exposed to cadmium (0.2 and 2 mg/1) and lead (0.16 and 1.6 mg/1) for 30 days. Concentrations used represented 1/10 and 1 of the respective LC50 values for zoea I of the studied species. Proportion of larvae hatching, meantime of eclosion and proportion of abnormal larvae were recorded. Abnormalities detected were hydropsy; small size; and atrophy of dorsal, rostral and telson spines, as well as atrophy of pereiopods and telson setae. The mean time of eclosion was inversely correlated to the incidence of structural abnormalities such as atrophy of spines and setae. These results suggest that both cadmium and lead caused an early eclosion of underdeveloped larvae, but while cadmium caused also a significant increase in hatching rate, lead produced a significant decrease in the proportion of larvae hatching. © 1998 Taylor & Francis Group, LLC. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_07924259_v33_n1_p81_Amin
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Decapod crustaceans Hatching Heavy metals Malformations Lithodes santolla
spellingShingle	Decapod crustaceans Hatching Heavy metals Malformations Lithodes santolla Amin, O.A. Rodriguez, E.M. Hernando, M. Comoglio, L.I. Lopez, L.S. Medesani, D.A. Effects of lead and cadmium on hatching of the southern king crab lithodes santolla (Decapoda, Anomura)
topic_facet	Decapod crustaceans Hatching Heavy metals Malformations Lithodes santolla
description	Eggs of the king crab Lithodes santolla were exposed to cadmium (0.2 and 2 mg/1) and lead (0.16 and 1.6 mg/1) for 30 days. Concentrations used represented 1/10 and 1 of the respective LC50 values for zoea I of the studied species. Proportion of larvae hatching, meantime of eclosion and proportion of abnormal larvae were recorded. Abnormalities detected were hydropsy; small size; and atrophy of dorsal, rostral and telson spines, as well as atrophy of pereiopods and telson setae. The mean time of eclosion was inversely correlated to the incidence of structural abnormalities such as atrophy of spines and setae. These results suggest that both cadmium and lead caused an early eclosion of underdeveloped larvae, but while cadmium caused also a significant increase in hatching rate, lead produced a significant decrease in the proportion of larvae hatching. © 1998 Taylor & Francis Group, LLC.
format	JOUR
author	Amin, O.A. Rodriguez, E.M. Hernando, M. Comoglio, L.I. Lopez, L.S. Medesani, D.A.
author_facet	Amin, O.A. Rodriguez, E.M. Hernando, M. Comoglio, L.I. Lopez, L.S. Medesani, D.A.
author_sort	Amin, O.A.
title	Effects of lead and cadmium on hatching of the southern king crab lithodes santolla (Decapoda, Anomura)
title_short	Effects of lead and cadmium on hatching of the southern king crab lithodes santolla (Decapoda, Anomura)
title_full	Effects of lead and cadmium on hatching of the southern king crab lithodes santolla (Decapoda, Anomura)
title_fullStr	Effects of lead and cadmium on hatching of the southern king crab lithodes santolla (Decapoda, Anomura)
title_full_unstemmed	Effects of lead and cadmium on hatching of the southern king crab lithodes santolla (Decapoda, Anomura)
title_sort	effects of lead and cadmium on hatching of the southern king crab lithodes santolla (decapoda, anomura)
url	http://hdl.handle.net/20.500.12110/paper_07924259_v33_n1_p81_Amin
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Effects of lead and cadmium on hatching of the southern king crab lithodes santolla (Decapoda, Anomura)

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