The ocean needs all of us to learn, restore and promote conservation ideals. Here are some organizations that are doing great work nationally and internationally.
Check out these organizations working diligently for marine conservation:
Dr. Sylvia Earle and her team at Mission Blue: http://mission-blue.org
The Nature Conservancy: http://www.nature.org
International Union for Conservation of Nature: https://www.iucn.org/about/work/programmes/marine/
The Seattle Aquarium: http://www.seattleaquarium.org