Impact of Copper Sulfate on Zebrafish Heart Rates

A team of scientists conducted an experiment to analyze how varying levels of copper sulfate in water affect the heart rates of zebrafish. The researchers divided the zebrafish into four groups, each exposed to different concentrations of copper sulfate: 0 mg/L (control), 5 mg/L, 10 mg/L, and 15 mg/L. Heart rates were measured at the end of a two-week exposure period using specialized equipment.

The results indicated a clear trend: as the concentration of copper sulfate increased, the heart rates of the zebrafish decreased. The group exposed to 0 mg/L had an average heart rate of 100 beats per minute, while the group exposed to 15 mg/L had an average heart rate of 70 beats per minute. Statistical analysis showed that the changes in heart rate were significant between the control group and the groups exposed to copper sulfate.

Based on these findings, the researchers concluded that increased levels of copper sulfate negatively affect the heart rates of zebrafish.