Was interesting several years ago myself and several friends in other boats fishing different stretch down river noticed the striped bass would be caught 2-1 instead of skippies using worm/bobber for baitfish. Was also cool that being we were all fishing pretty consistantly and 20 miles appart that they quit getting them before I did as they were downriver. Could tell that it was a limited supply of them working thier way upriver. Havent had it happed again but that one year. Just one of many things going on underwater that occurs seasonally and may or may not become aware of.