when does a waterbody compare how does ANCOVA work for waterbodies? how to compare waterbodies how many replicate sample for each waterbody? when is the water quality data comparable what is the purpose of comparing waterbodies when is the water quality variable analyzed over time? can you compare two different waterbodies over time to determine whether the water quality variable is the same? how many replicate water samples for each waterbody how is ancova compared to linear contrasts how to determine the difference between a waterbody and a waterbody why do two waterbodies need to be compared over time how many replicates of a waterbody how can you compare two waterbodies over time how to check for water quality variances how many times to compare waterbodies how to compare two different waterbodies how many times should we have to analyze a waterbody to see if it's similar how to compare waterbodies over time when to compare waterbodies