They are rolling in the fish out of the seine right into the fish hold, saves a lot of time instead of brailing them in. They roll way over like that then as the seine empties of fish they straighten right up. Its pretty cool to watch one of those 58' steel seiners roll way over then straighten up.
I will never forget when the Seiner Evenick, Homeport Kodiak capsized in Shelekof Straight, south of Kodiak. I was on a buoy tender and the vessel was a hazard to navigation in a heavily transited area. We had to sink it using .50 Cal machine gun fire and 2,000 rounds later it would not go down. It was later learned there was extra foam flotation that was inserted into the boat changing its center of gravity. After finally nearly sinking it we had to put a large pile of about three shots of large buy chain on it to sink it. It was sad knowing that the crew was nearby drifting and deceased but looking down from the heavens screaming what are you doing to my boat. The family was strong at the memorial and it was sad to hear the names called out at the annual Fisherman's memorial with others.