Effects of cadmium on somatic and gonadal growth of juvenile females of the estuarine crab chasmagnathus granulata (brachyura: Grapsidae)

Mariela Kogan, Laura S. López Greco, Luis A. Romano and Enrique M. Rodríguez (2000) Effects of cadmium on somatic and gonadal growth of juvenile females of the estuarine crab Chasmagnathus granulata (Brachyura: Grapsidae). Zoological Studies 39(4): 344-350. Juvenile female crabs of Chasmagnathus gra...

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Autores principales: Kogan, M., López Greco, L.S., Romano, L.A., Rodríguez, E.M.
Formato: JOUR
Materias:
Cadmium
Crustaceans
Ovary
Sexual maturity
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_10215506_v39_n4_p344_Kogan
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_10215506_v39_n4_p344_Kogan
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spelling todo:paper_10215506_v39_n4_p344_Kogan2023-10-03T15:56:35Z Effects of cadmium on somatic and gonadal growth of juvenile females of the estuarine crab chasmagnathus granulata (brachyura: Grapsidae) Kogan, M. López Greco, L.S. Romano, L.A. Rodríguez, E.M. Cadmium Crustaceans Ovary Sexual maturity Mariela Kogan, Laura S. López Greco, Luis A. Romano and Enrique M. Rodríguez (2000) Effects of cadmium on somatic and gonadal growth of juvenile females of the estuarine crab Chasmagnathus granulata (Brachyura: Grapsidae). Zoological Studies 39(4): 344-350. Juvenile female crabs of Chasmagnathus granulata (Decapoda: Brachyura) were exposed to 0.1 and 0.5 mg/l of cadmium for at least 50 d before and 15 d after molting. The gonads were dissected and fixed for histopathological studies, while the carapaces were preserved to measure calcium content. A cadmium concentration of 0.5 mg/l was lethal for juvenile crabs. The few surviving crabs at this concentration were unable to molt. Although most crabs exposed to 0.1 mg/l of cadmium survived and molted, they presented a significantly higher incidence of pathologies in the ovaries than did control crabs. These pathologies were hypertrophy and cariorhexis in primary oocytes, as well as reactional atresia in secondary oocytes. Although no significant difference in the proportion of crabs with mature ovaries after molting was noted between the control and cadmium-exposed animals, a trend towards slower maturity was noticed due to the effect of cadmium. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_10215506_v39_n4_p344_Kogan
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
Crustaceans
Ovary
Sexual maturity
spellingShingle Cadmium
Crustaceans
Ovary
Sexual maturity
Kogan, M.
López Greco, L.S.
Romano, L.A.
Rodríguez, E.M.
Effects of cadmium on somatic and gonadal growth of juvenile females of the estuarine crab chasmagnathus granulata (brachyura: Grapsidae)
topic_facet Cadmium
Crustaceans
Ovary
Sexual maturity
description Mariela Kogan, Laura S. López Greco, Luis A. Romano and Enrique M. Rodríguez (2000) Effects of cadmium on somatic and gonadal growth of juvenile females of the estuarine crab Chasmagnathus granulata (Brachyura: Grapsidae). Zoological Studies 39(4): 344-350. Juvenile female crabs of Chasmagnathus granulata (Decapoda: Brachyura) were exposed to 0.1 and 0.5 mg/l of cadmium for at least 50 d before and 15 d after molting. The gonads were dissected and fixed for histopathological studies, while the carapaces were preserved to measure calcium content. A cadmium concentration of 0.5 mg/l was lethal for juvenile crabs. The few surviving crabs at this concentration were unable to molt. Although most crabs exposed to 0.1 mg/l of cadmium survived and molted, they presented a significantly higher incidence of pathologies in the ovaries than did control crabs. These pathologies were hypertrophy and cariorhexis in primary oocytes, as well as reactional atresia in secondary oocytes. Although no significant difference in the proportion of crabs with mature ovaries after molting was noted between the control and cadmium-exposed animals, a trend towards slower maturity was noticed due to the effect of cadmium.
format JOUR
author Kogan, M.
López Greco, L.S.
Romano, L.A.
Rodríguez, E.M.
author_facet Kogan, M.
López Greco, L.S.
Romano, L.A.
Rodríguez, E.M.
author_sort Kogan, M.
title Effects of cadmium on somatic and gonadal growth of juvenile females of the estuarine crab chasmagnathus granulata (brachyura: Grapsidae)
title_short Effects of cadmium on somatic and gonadal growth of juvenile females of the estuarine crab chasmagnathus granulata (brachyura: Grapsidae)
title_full Effects of cadmium on somatic and gonadal growth of juvenile females of the estuarine crab chasmagnathus granulata (brachyura: Grapsidae)
title_fullStr Effects of cadmium on somatic and gonadal growth of juvenile females of the estuarine crab chasmagnathus granulata (brachyura: Grapsidae)
title_full_unstemmed Effects of cadmium on somatic and gonadal growth of juvenile females of the estuarine crab chasmagnathus granulata (brachyura: Grapsidae)
title_sort effects of cadmium on somatic and gonadal growth of juvenile females of the estuarine crab chasmagnathus granulata (brachyura: grapsidae)
url http://hdl.handle.net/20.500.12110/paper_10215506_v39_n4_p344_Kogan
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