Why is protecting the Marine Turtles so important? They are fundamentally important to marine ecosystems. They are the "sea garden keepers" and help maintain healthy life cycles for coral reefs and sea grass. The coral reefs and sea grass also help benefit the other valuable species such as shrimp, lobster, and tuna.
I highly suggest taking the time to read the World Wildlife Federation information on how you can help the Sea Turtle and other marine life. They have been doing a tremendous job on addressing illegal trade of turtles, protecting their habitats, and working to minimize the climate changes.