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Oceanography Seminar

December 12, 3:00pm - 4:15pm
Manoa Campus, MSB 100

Anna Neuheimer
Assistant Professor
Dept. of Oceanography

“Explaining variation in life history timing: Fish spawning time in a changing climate”

Abstract: The capacity of a species to tolerate and/or adapt to environmental conditions will shape its response to future climate change. Of the many life-history processes affected by climate, timing of reproduction greatly influences offspring success and resulting population production. Here we explore temporal and spatial changes in spawning time for Atlantic cod (Gadus morhua) across the species’ range. We estimate spawning time using a physiologically relevant metric that includes information on fish thermal history (degree days, DD). First, we estimate spawning DD among years (within populations) to show recent changes in spawning time can be explained by local changes in temperature. Second, we employ spawning DD to identify temperature-independent trends in spawning time among populations that are consistent with the evolutionary history of the species. Finally, we use our results to estimate expected spawning time under future climate regimes, and discuss the implications for cod ecology across the species’ range.


Ticket Information
Free

Event Sponsor
Oceanography, Manoa Campus

More Information
956-7633

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Thursday, December 12
7:30am The Wellness Center - Fitness Class Schedule
Maui Campus, Pilina Bldg., Wellness Center
12:00pm China After the One-Child Policy
Manoa Campus, East-West Center, Burns Hall, Room 3012
3:00pm Oceanography Seminar
Manoa Campus, MSB 100
4:00pm Peace Corps Information Session and Volunteer Send-Off
Manoa Campus, QLCSS 208
5:00pm Chess Club at UH Manoa Meeting
Manoa Campus, Campus Center room 309
5:30pm Spotlight featuring Shilo Pa, Weldon Kekauoha, & Shar Carillo
Manoa Campus, Manoa Gardens (located in Hemenway Hall)
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