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COAPS Short Seminar Series</div>
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11:00 AM July 15th</div>
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Attend F2F (in 255 Research A) or Virtually (via Zoom)</div>
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https://fsu.zoom.us/j/92268262553</div>
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Meeting ID: 922 6826 2553</div>
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Talks are 12 minutes long with an additional 8 minutes for questions.</div>
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Multi-trophic level responses to marine heatwave disturbances in the California Current Ecosystem</div>
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By Tz-Chian Chen</div>
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Description: Marine heatwaves (MHWs) caused by multiple phenomena with days to months duration are increasingly common disturbances in ocean ecosystems. We investigated the impacts of MHWs on pelagic communities using spatially-resolved time-series of multiple
trophic levels from the Southern California Current Ecosystem. Indices of phytoplankton biomass mostly declined during MHWs because of reduced nutrient supply (excepting Prochlorococcus) and were generally more sensitive to marine heatwave intensity than duration.
By contrast, mesozooplankton (as estimated by zooplankton displacement volume) were somewhat more strongly correlated with MHW duration than intensity. Zooplankton anomalies were also positively correlated with fucoxanthin (diatom) anomalies, highlighting
possible bottom-up influences during MHWs. Mobile consumers (forage fish) showed more complex responses, with fish egg abundance declining during MHWs but not correlating with any MHW characteristics. Our findings provide partial evidence of how MHW characteristics
can shape variable ecological responses due to the differing life spans and behaviors of different trophic levels.</div>
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NOTE: Please feel free to forward/share this invitation with other groups/disciplines that might be interested in this talk/topic. All are welcome to attend.</div>
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