Had the same thing happen to me, while fishing under a bridge inlet. Using a schoolie rod, I hooked into a schoolie only to have a monster striper come up and approach, either looking for an easy meal or as its guardian.
I’m amazed by what the bigger fish eat. Big lobsters, blackfish, bluefish and even stripers. Makes even the biggest plugs I own look small. I haven’t seen it much myself (unfortunately) but I found a blue that was probably 20” long in a bass’s belly recently. Also got one with a pretty large lobster tail sticking out of its mouth. Night Tides (the book about Billy the Greek) gives some good accounts on what really big bass eat and how they’re different from the smaller fish.
"Remember, my friend, that knowledge is stronger than memory, and we should not trust the weaker" - Van Helsing