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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1998
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_07924259_v33_n1_p81_Amin http://hdl.handle.net/20.500.12110/paper_07924259_v33_n1_p81_Amin |
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paper:paper_07924259_v33_n1_p81_Amin2023-06-08T15:45:57Z Effects of lead and cadmium on hatching of the southern king crab lithodes santolla (Decapoda, Anomura) 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. 1998 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_07924259_v33_n1_p81_Amin 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 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. |
| 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) |
| publishDate |
1998 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_07924259_v33_n1_p81_Amin http://hdl.handle.net/20.500.12110/paper_07924259_v33_n1_p81_Amin |
| _version_ |
1768542649584713728 |