When I first saw these on my unit, I thought it might be a school of sand bass but I could never get a bite. I tried looking at it with my side and down imaging but I didn't see anything. Maybe they had all moved out by the time I could switch over to DI & SI and turn the boat around for another pass.
"But God demonstrates His own for love for us in this: while we were still sinners, Christ died for us." (Romans 5:8)