Marrakai,
Those Stripers were taken with live eels. During the fall as the winter is approaching the entire Striper fishery goes to live bait. For the next month they will be feeding on live eels until the herring show up then they'll switch over to feeding on live herring.
During the herring run there is a striper for every herring you catch and put back out there for them. In late November early December it's possible to catch 20 to 25 Stripers per man using live herring.