Acute-lethal Toxicity (LC50) Effect of Terminalia catappa Linn. Leaves Extract on Oreochromis niloticus (red Nile tilapia) Juveniles Under Static Toxicity Exposure

Investigation of Acute Toxicity of Alpha-Cypermethrin on Adult Nile Tilapia (Oreochromis niloticus L.)

Alpha-cypermethrin, which is a synthetic pyrethroid pesticide and potential toxic pollutant, contaminating aquatic ecosystems was investigated in the present study for acute toxicity. Nile tilapia (Oreochromis niloticus) adults were selected for the bioassay experiments. The experiments were repeated three times and the 96-h LC50 value was determined for the adults. The static test method of ac...

THE OPPOSING EFFECT OF ASCORBIC ACID (VITAMIN C) ON OCHRATOXIN TOXICITY IN NILE TILAPIA (Oreochromis niloticus)

The opposing effect of ascorbic acid against ochratoxin induced perturbations in some haematological and biochemical parameters in Nile tilapia (Oreochromis niloticus) was investigated. This study was carried out to evaluate the ability of a minimum level (500 mg/ kg diet) of vitamin C to counteract the toxicity of two levels of ochratoxin (400 and 600 μg/ kg diet). Nile tilapia (5060 g/ fish) ...

Acute toxicity of alpha-cypermethrin on tilapia (Oreochromis niloticus L.) larvae.

Cortisol Response in Nile tilapia, Oreochromis niloticus L., Following Acute Exposure to a Glyphosate-based Herbicide

Glyphosate-based herbicides are widely used in agricultural fields and are commonly applied in fish ponds to control algae and plant growth. Nile tilapia, Oreochromis niloticus L., fingerlings exposed to the highest sublethal concentrations of glyphosate alone experienced an increase in cortisol levels that was similar to the value found in the stressed group. In contrast, fingerlings exposed t...

Acute toxicity and effects of sub-lethal malathion exposure on biochemical and haematological parameters of Oreochromis niloticus

The specimens of Oreochromis niloticus were exposed to Malathion to determine the lethal concentration (LC50) value and effects of sub-lethal concentrations on haematological and biochemical parameters. The LC50 value was registered as 1.06 mg/l. Fishes exposed to sub-lethal concentrations (0.12, 0.23 and 0.46 mg/l) for 6 weeks revealed that the pesticide causes alterations in various blood par...