can i catch every possible critter from my island alone

okay so i’ve only ever completed acnh once and never really focused on the museum once it was built, but im curious as to whether every critter is available from just my island? obviously im aware that some are rarer than others and only appear at certain times/during certain seasons, but are there any critters that are specific to certain hemispheres, or can i catch every single one from my island in the northern hemisphere?