Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Dissolved oxygen concentration comparison between the control and treatment group over time presented in box plots with median and 25–75 percentiles, the lines represent all the data range except extreme values, which are depicted with dots. P-value of comparison test is found at the top of the panel.
