Category Archives: Jeffrey B. Graham Perspectives on Ocean Science Lecture Series

From Sea to Pharmacy

The vastness of the ocean is only surpassed by the biodiversity within it; from familiar and unfamiliar mega-fauna, to every microbe and virus inhabiting every corner of the seas – from the deep freeze of the Antarctic to the scorching plumes of volcanic seafloor vents.

Paul Jensen describes how he and other researchers are tapping into the biodiversity of the world’s oceans as a relatively new resource for natural product drug discovery. Jensen is at the Center for Marine Biotechnology and Biomedicine at Scripps Institution of Oceanography, UC San Diego.

Watch — Marine Natural Products: From Sea to Pharmacy

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Understanding the Arctic Climate System

The Arctic is changing rapidly in response to global climate and economic activity and yet much of it remains unexplored with modern scientific techniques.

Jeff Bowman is a biological oceanographer who studies marine microbial communities. In this presentation at the Birch Aquarium at Scripps Institution of Oceanography he describes his group’s work in the Arctic as they seek to understand the ecological implications of changing sea ice conditions.

They are also preparing to participate in the Multidisciplinary drifting Observatory for the Study of Arctic Climate (MOSAiC) Expedition, an unprecedented multi-national effort to study the high Arctic across a complete seasonal cycle.

Watch — Modern Oceanography and the Changing Arctic Ocean.

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Glaciers and Sea Level Rise

Using helicopters, icebreakers, fishing vessels, and autonomous surface and underwater vehicles for over a decade, Fiammetta Straneo and her group have been probing the edge of massive calving glaciers in iceberg-choked fjords in Greenland to explore what is the Achille’s heel of glaciers – the marine edge where glaciers meet the sea.

Their goal? 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 a lack of measurements so Fiammetta and her group have probed in these polar environments to improve models of sea-level rise predictions.

Watch — Navigating the Perilous Waters at the Edge of Glaciers to Understand Sea Level Rise – 2019 Keeling Lecture

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California Seaweed

Kelp cutters once harvested tons of the nearshore kelp off the San Diego County coastline, producing additives for your ice cream, beer and pharmaceuticals.

And of course, anyone who has had a California Roll or a bowl of miso soup is familiar with the centuries-old use of Nori.

But now Scripps researchers are working to uncover other value from the ubiquitous red, green and brown algae that thrives in our waters, even exploring the use of seaweed to reduce methane produced by dairy cows – and perhaps even improving their health and productivity.

Join Scripps Oceanography’s Jennifer Smith and entrepreneur Brant Chlebowski as they tell the story of their collaboration on applied aquaculture research that has sparked the formation of the California Seaweed Company.

Watch — Food, Feed and Climate Change – Emerging Opportunities for Shore Based Seaweed Aquaculture

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Eavesdropping on Whales

Since ancient seafarers first heard the strange calls of whales, humans have been fascinated by their meaning – from Flipper’s clicks and trills to the long serenades of Humpbacks. Inhabiting the dark ocean depths, whales use sound in many different ways – from feeding to navigating to finding friends and family.

Join postdoctoral scholar Goldie Phillips for a captivating look into how scientists use whale calls to study whale populations.

Watch — Eavesdropping on Whales: How Whale Calls Inform Science

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