Complex sentence: While the park itself used to be a very productive fishery for lobster, abalone, halibut, mako shark and various other species of fish, the boundaries are still heavily fished for many types of species.
Split into simpler sentences: While the park itself used to be a very productive fishery for lobster, abalone, halibut, mako shark and various other species of fish. The boundaries are still heavily fished for many types of species.