Oceanography (Audio)

Marine biologist Jennifer Smith talks about the properties and history of the superfood seaweed. Series: "Jeffrey B. Graham Perspectives on Ocean Science Lecture Series" [Science] [Show ID: 35070]

The Arctic is changing rapidly in response to changes in global climate and economic activity and yet much of it remains unexplored with modern scientific techniques. Jeff Bowman describes his group's work in the Arctic as they seek to understand the ecological implications of changing sea ice conditions, and prepare to participate in the MOSAiC expedition; an unprecedented multi-national effort to study the high Arctic across a complete seasonal cycle. Series: "Jeffrey B. Graham Perspectives on Ocean Science Lecture Series" [Science] [Show ID: 34635]

Collapsing ice shelves and calving of large icebergs in Greenland and Antarctica have recently become major drivers of sea level rise. The rapidity of these changes has come as a surprise, revealing major gaps in our understanding of how ice sheets respond to a changing climate. To a large extent, these gaps are due to the lack of measurements from the marine edge of glaciers - the Achilles' heel of glaciers. For over a decade, since the glaciers in Greenland began their retreat, Fiammetta Straneo and her group at Scripps Institution of Oceanography have been probing the edge of massive calving glaciers in iceberg-choked fjords in Greenland using helicopters, icebreakers, fishing vessels, and autonomous vehicles. The understanding gained through these measurements is being used in models aimed at improving sea-level rise predictions. Series: "Jeffrey B. Graham Perspectives on Ocean Science Lecture Series" [Science] [Show ID: 34572]

Earths climate is a complex system with global scale interactions spanning the tropics to the poles. Join emeritus Professor and past Scripps Director Charles Kennel as he reveals the potential of arctic sea ice loss to influence the intensity of climate events such as El Nino, and raises the possibility that more changes in weather patterns and extreme events are to come. Series: "Jeffrey B. Graham Perspectives on Ocean Science Lecture Series" [Science] [Show ID: 34571]

Join Dr. Jennifer Smith and entrepreneur Brant Chlebowski as they tell the story of their collaboration on applied aquaculture research of commercially valuable seaweeds – research that has sparked the formation of the California Seaweed Company and a new area of research in the Smith lab related to food and feed uses of local seaweeds. Series: "Jeffrey B. Graham Perspectives on Ocean Science Lecture Series" [Science] [Show ID: 34570]

Sooner or later, the food requirements of nine billion people with increasing appetites for seafood must be addressed. Although aquaculture may supply the majority of the global ‘seafood’, most aquaculture is fed meal from wild caught fish, such as sardine and anchovy. To estimate the distributions and abundance of these and other small fish off the west coast, NOAA Southwest Fisheries Science Center routinely conducts “acoustic-trawl” surveys. David Demer will briefly describe the vessels, instrumentation and methods that are used to conduct these surveys, and provide a virtual tour of the world-class facilities in La Jolla that are used to develop the next generation of autonomous, ocean-sampling technologies. Join us to learn more about this exciting technology and be part of a discussion about possible ethical challenges. Series: "Exploring Ethics" [Humanities] [Science] [Agriculture] [Show ID: 34378]

Whales are among the most fascinating animals in the ocean. People are intrigued by their impressive size, intelligence, and their use of sound to communicate. Join postdoctoral scholar Goldie Phillips for a captivating look into how scientists use whale calls to study whale populations. Series: "Jeffrey B. Graham Perspectives on Ocean Science Lecture Series" [Science] [Show ID: 34395]

Orca, J-50, is loosing weight and researchers at UC Davis Veterinary School of Medicine and SeaDoc Society are exploring innovative ways to study what might be wrong with her. Series: "UCTV Prime" [Science] [Show ID: 34578]

Earth’s changing climate provides a natural laboratory for examining how organisms evolve adaptations to environmental extremes. As climate change accelerates, an obvious question arises: can evolution keep up with rapid change or are most species likely to go extinct as temperatures rise? Join Scripps Oceanography biologist Ron Burton as he describes the cutting-edge genetic tools he uses to understand how populations of tidepool animals cope with rapid temperature changes and how evolution has shaped those responses across the geographic range of each species. Series: "Jeffrey B. Graham Perspectives on Ocean Science Lecture Series" [Science] [Show ID: 33840]

Exploration of our oceans continues to reveal strange new animals. Come along as Scripps Oceanography's Greg Rouse reviews some of the more famous discoveries dating back over the last century, and documents some of the more recent amazing discoveries focusing on California and the eastern Pacific Ocean. This will include the bizarre bone-eating worms known as Osedax, the green bomber worm Swima, the enigmatic Xenoturbella, and recent work on the extraordinary Ruby Seadragon. Series: "Jeffrey B. Graham Perspectives on Ocean Science Lecture Series" [Science] [Show ID: 33839]