I asked one of the guys and he told me the biggest bass he got was a 9 pounder and some 5 pounders but I think they consider anything up to 3/4 pound like good enough to eat, but the thing is that they will shot almost every bass that they see in the water, about other species i don't know wide info about species besides bass, I know there are two kind of carps neither of them are common carp, one of them is the silver carp but don't know the specific name of the other one they are like clear yellow, there is also tilapia I don't know if you know it but is similar to bluegill, catfish but I don't think there is a bunch of them rarely seen somebody catching one, and some native species.
About surf fishing yes buddy there is great surf fishing but expensive, the nearest beach from where I live is around 60km away from where I live which is not too far but like I said all the stuff for saltwater here is very expensive.