Pond Boss Forums MANAGING AN EXISTING POND Evaluating and adjusting fish populations Population Assessment info

Interesting, Eric. We don't normally think about populations where a predominance of small size is due to the fish not living long enough to get big. But 60% annual mortality would be a bite - less than 10% of a population makes it through 3 years.

OTOH 10% is a lot more than the most generous fry survival rates - I assume the mortality rates above must start after fish reach adulthood or at least intermediate size (???).

I'd love to hear the professorial take on this from Dr. Dave or Dr. A or Dr C.