Abstract
The nature of sublethal effects of cadmium on reproduction of an important freshwater food fish Labeo bata is being reported. The animals were exposed to an environment containing various concentrations of cadmium chloride before the onset of breeding season. Fish of both sexes underwent a significant reduction of gonosomatic index at the cadmium concentrations of 4-10 mg per litre. The testes of the treated fish were on the state of disruption and the germinal epithelium were mostly ruptured and deleterious changes were recorded in the postmeiotic germ cells. In the ovary, the follicular development were mostly arrested in oocyte-I and II stages and ovarian atresia and crumpling of larger oocytes were evidenced. Higher concentration of cadmium salt beyond 10 mg per litre were found to be fatal to the fish life. The acute toxicity range of cadmium in this fish was observed to be 2.8-10.5 mg per litre. Gonadal developments is not much affected at lower concentrations of cadmium.
Citation Formats
Das, R C.
Cadmium toxicity to gonads in a freshwater fish, Labeo bata (Hamilton).
Germany: N. p.,
1988.
Web.
Das, R C.
Cadmium toxicity to gonads in a freshwater fish, Labeo bata (Hamilton).
Germany.
Das, R C.
1988.
"Cadmium toxicity to gonads in a freshwater fish, Labeo bata (Hamilton)."
Germany.
@misc{etde_6704198,
title = {Cadmium toxicity to gonads in a freshwater fish, Labeo bata (Hamilton)}
author = {Das, R C}
abstractNote = {The nature of sublethal effects of cadmium on reproduction of an important freshwater food fish Labeo bata is being reported. The animals were exposed to an environment containing various concentrations of cadmium chloride before the onset of breeding season. Fish of both sexes underwent a significant reduction of gonosomatic index at the cadmium concentrations of 4-10 mg per litre. The testes of the treated fish were on the state of disruption and the germinal epithelium were mostly ruptured and deleterious changes were recorded in the postmeiotic germ cells. In the ovary, the follicular development were mostly arrested in oocyte-I and II stages and ovarian atresia and crumpling of larger oocytes were evidenced. Higher concentration of cadmium salt beyond 10 mg per litre were found to be fatal to the fish life. The acute toxicity range of cadmium in this fish was observed to be 2.8-10.5 mg per litre. Gonadal developments is not much affected at lower concentrations of cadmium.}
journal = []
volume = {112:3}
journal type = {AC}
place = {Germany}
year = {1988}
month = {May}
}
title = {Cadmium toxicity to gonads in a freshwater fish, Labeo bata (Hamilton)}
author = {Das, R C}
abstractNote = {The nature of sublethal effects of cadmium on reproduction of an important freshwater food fish Labeo bata is being reported. The animals were exposed to an environment containing various concentrations of cadmium chloride before the onset of breeding season. Fish of both sexes underwent a significant reduction of gonosomatic index at the cadmium concentrations of 4-10 mg per litre. The testes of the treated fish were on the state of disruption and the germinal epithelium were mostly ruptured and deleterious changes were recorded in the postmeiotic germ cells. In the ovary, the follicular development were mostly arrested in oocyte-I and II stages and ovarian atresia and crumpling of larger oocytes were evidenced. Higher concentration of cadmium salt beyond 10 mg per litre were found to be fatal to the fish life. The acute toxicity range of cadmium in this fish was observed to be 2.8-10.5 mg per litre. Gonadal developments is not much affected at lower concentrations of cadmium.}
journal = []
volume = {112:3}
journal type = {AC}
place = {Germany}
year = {1988}
month = {May}
}