assuming you caught them recently from the wild (and given your location) they could easily be a group of both. LNG usually don't have a full-body dorsal stripe, so fish with that full dorsal stripe are more likely to be spotted, those lacking, probably longnose (can compare snouts on the same size individuals as well).
YOY wild SPGs look very similar to LNG, so you may just have to wait a bit longer for other differences to show - in a week or two we should definitely be able to tell the differences--
--solomon

assuming you caught them recently from the wild (and given your location) they could easily be a group of both. LNG usually don't have a full-body dorsal stripe, so fish with that full dorsal stripe are more likely to be spotted, those lacking, probably longnose (can compare snouts on the same size individuals as well).
YOY wild SPGs look very similar to LNG, so you may just have to wait a bit longer for other differences to show - in a week or two we should definitely be able to tell the differences--
--solomon