You also have to take into account the sexual maturity and number of offspring of the species. Cod reach sexual maturity from 2-7 years, crab in 1 year. But At

You also have to take into account the sexual maturity and number of offspring of the species. Cod reach sexual maturity from 2-7 years, crab in 1 year. But Atlantic cod apparently lay 200k-2m eggs, alaskan crab between 50k-500k. Though I can't quite see if the cod number is lifetime or annual. I seem to recall a huge drop in the Salmon population on the Fraser river back in the early 2000s. Seems the numbers continue to bounce around. https://www.cbc.ca/news/canada/british-columbia/fraser-sockeye-numbers-up-from-2009-officials-say-1.1305233 https://www.cbc.ca/news/canada/british-columbia/fraser-socke... Doesn't mean we don't need to know why. It's good that the crab season is cancelled, but I really feel for the crab fishermen. After the last few years, and with inflation, to lose a whole season must be devistating.