If you love seafood, you’re not alone — but every bite comes from a complex and fragile marine ecosystem. To keep our ocean ecosystems thriving and our seafood resources abundant, we need a deeper scientific understanding of how they function. Colleen Petrik, a professor of oceanography at UC San Diego's Scripps Institution of Oceanography, talks about her work studying the changing ecosystem of the ocean from fishing to coastal development. Series: "Jeffrey B. Graham Perspectives on Ocean Science Lecture Series" [Science] [Show ID: 41301]