Seminar on California Current
The Hatfield Marine Science Center’s Research Seminar Series continues with a talk on the California Current, the West Coast-sweeping large ecosystem that influences so much of Oregon’s nearshore ocean. The speaker: Beth Phillips, and Interdisciplinary Research Fish Biologist with the Northwest Fisheries Science Center, a division of NOAA. Her topic: “A Treasure Trove Revealed: Using Archived Data To Expand Our Understanding Of the California Current Ecosystem.” The event, free and open to all, takes place on Thursday, May 6, 3:30 p.m.
Dr. Phillips investigates linkages between dynamic physical ocean conditions and multiple trophic levels including zooplankton, fish, seabirds and marine mammals. Her current research projects include standardizing approaches to classify euphausiids (krill) from acoustic backscatter, assessing the relationships between krill and Pacific hake distribution, diet, growth, and recruitment, and adding seabird and marine mammal surveys to the joint US-Canada Integrated Ecosystem and Acoustic-Trawl Survey in support of ecosystem-based fisheries management.
Her description of her webinar topic:
“Datasets that span broad temporal and spatial scales can provide important insights on ecosystem variation and inform ecosystem-based fisheries management. NOAA Fisheries Northwest Fisheries Science Center and Fisheries & Oceans Canada conduct biennial joint U.S.-Canada Integrated Ecosystem & Acoustic-Trawl surveys for Pacific hake. The survey has been conducted since 2003 and operates between Point Conception in southern California to Haida Gwaii in northern British Columbia, surveying most of the California Current during June to September. The survey collects data to support management of commercially important Pacific hake, including a vast amount of oceanographic, acoustic, and biological data that can be used for other ecological research. I will describe my efforts to use this archived data to develop a novel time series of euphausiid (krill) abundance and discuss the insights I gleaned from analyzing this dataset. The simultaneous collection of krill and hake data allows for a direct evaluation of relationships between an important prey item in the CCE and an abundant predator, and I will also share these results. Because krill are key prey items for a wide range of seabirds, marine mammals, and commercially important fish, I will also discuss additional research projects that this valuable dataset will support to expand our understanding of the California Current Ecosystem and inform ecosystem-based fisheries management.”
To attend the virtual presentation, go here.
Password: 972587 or call +1-971-247-1195 US Meeting ID: 945 5573 1151