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- Title
Effects of Glyphosate Herbicide on Physiological Parameters of Koi Carp, Cyprinus Carpio (Linnaeus, 1758) Fingerlings.
- Authors
Sanudi, F.; Indulkar, S. T.; Adsul, A. D.; Pawase, A. S.; Sawant, M. S.
- Abstract
Background: Sub-lethal toxicity bioassay experiments were conducted to determine the toxicity of glyphosate herbicide on Koi carp, Cyprinus carpio fingerlings. Koi carp fingerlings with mean length 8.06 ± 0.99 cm were obtained from a freshwater fish seed hatchery of the university. Methods: The fishes were exposed to sub-lethal concentrations i.e. 1/10th (3.6 mgL-1) and 1/5th (6.6 mgL-1) of glyphosate. Oxygen consumption rate, Ammonia-Nitrogen excretion rate, Oxygen:Nitrogen ratio and food consumption rate were recorded after every 7 days for a period of 28 days. Result: Results indicated significant decrease (P<0.05) in oxygen consumption in 1/101 and 1/51 of LC50 concentrations. Ammonia-Nitrogen significcantly increased in exposed fishes. Oxygen: Nitrogen ratio and food consumption rate also significantly decreased (P>0.05) in treated fishes. The results indicated that glyphosate had impacts on exposed fish, hence, the need of regulation of its usage to protect non-targeted species and the environment.
- Subjects
CARP; KOI; HERBICIDES; FRESHWATER fishes; GLYPHOSATE; OXYGEN consumption
- Publication
Indian Journal of Animal Research, 2021, Vol 55, Issue 3, p266
- ISSN
0367-6722
- Publication type
Article
- DOI
10.18805/IJAR.B-3827