A Hole in the Net and the Fish Was Free

A farmed salmon
Slipped through a hole in the farm's net
And roamed free for a while...
But losing its nerve, it looked for the hole in the net
It slipped through.
It was just about the time for breakfast...
Even though it was tasteless flakes
Cast on the water that we all fought over.
Living on the farm was mostly humdrum, 
Swimming aimlessly, waiting for the feedin...  
Three times a day... 
Always the same flakes, floating on the water.
But, at least, there was no brutal swim upstream 
To spawn,
Through a gauntlet of famished bears,
Clawing at the water.
    I'm telling you, that is scary.
Better still the farm's water is a tad warmer.
So exchanging bears and cold water
For guaranteed food and warmer water...
Well, it's an easy call.