Complex sentence: Humboldt Bay and its tidal sloughs are open to fishing year-round, and the bay is home to a national wildlife refuge complex for the protection of wetlands and bay habitats for migratory birds.
Split into simpler sentences: Humboldt Bay and tidal sloughs are open to fishing year-round. The bay is home to a national wildlife refuge complex for the protection of wetlands and bay habitats for migratory birds.