Depends on workload from year to year, but I have trapped alot in years past. Got to trap semi-pro one winter was running 150-200 traps a day for over 45 days alot of work but had a good fur check at end of year. trapperman.com is a pretty good source for information the CDC of the trapping world.
Done alot more canine and cat trapping than water.
Good Luck!
Give someone a fish and you feed them for a day; teach someone to fish and you feed them for life.
Matthew 5:19 "Come, follow me," Jesus said, "and I will make you fishers of men."