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.
On the surface, it might seem like an ocean without sharks would be a more enjoyable place. But, these predators play a very important role in the ocean ecosystem and they need our protection just like many other ocean dwelling creatures.
Sharks have been at the top of the food chain for hundreds of millions of years, but today their populations are in danger because of human activities, such as overfishing and finning (this is when people catch sharks, remove the fins, and dump the carcass overboard).
Andrew P. Nosal, Ph. D, Birch Aquarium’s new DeLaCour Postdoctoral Fellow for Ecology and Conservation, shares his shark expertise and explains that all sharks are not the evil villains seen in movies, but are essential in maintaining a balanced ocean.
The North Pacific gray whale has been called an “ecosystem sentinel” because it appears this species responds to large-scale environmental changes. Global climate change may ultimately make the biggest impact on these ocean giants.
Join us as special guests Wayne Perryman and Dave Weller of Southwest Fisheries Science Center (NOAA) discuss how novel information on gray whales is reshaping scientists’ understanding of this species.