May 31 The run is slowing down….but it’s not over yet!

Fewer fish came in this morning than in previous mornings but there are still plenty of alewives to see if you visit the fish ladder today (and for the next few days). As the run comes to an end, smaller alewives tend to bring up the rear. Most alewives during the run are 4 years and older—4 years old is the age when alewives begin to spawn—-but 3 year olds often try out the route in preparation for coming-of-age when they are 4. The smaller alewives at the end of the run are 3 year olds, and they are now blending in with older fish coming in to spawn.