When it comes to burning calories, how hard and for how long is much more important than what you do. Pretty much all activities that gives you the same increase in heart rate for the same time will burn the same amount of calories.
Now, it can be a bit difficult to get a good burn going doing canoeing, as most people won't have enough upper body endurance to paddle hard and fast and long. And it's dependent on weight, gender, age, fitness level etc.
But let's say about 300 calories/hour.
It depends on weight, height and age but on average you loose around 600 calories per hour of canoeing
you burn about 346 calories an hour.....
Light standing occupations burn 150 calories per hour
50
About 580 - 600 calories
Burning calories depends on many factors. Stretching pizza for an hour could burn a few extra calories, but those calories are really negligible at the end of the day.
you burn 300
About 200 calories per hour.
no more than 500 calories
50
200
650-900