Complex sentence: The International Union for Conservation of Nature (IUCN) has assessed the bowmouth guitarfish as Vulnerable; it is threatened by fishing and habitat destruction and degradation, particularly from blast fishing, coral bleaching, and siltation.
Split into simpler sentences: The International Union for Conservation of Nature (IUCN) has assessed the bowmouth guitarfish as Vulnerable. It is threatened by fishing and by habitat destruction and degradation, particularly from blast fishing, coral bleaching, and siltation.