Professor Junping Shi (College of William & Mary) will speak on "Phytoplankton competition for nutrients and light in a stratified lake: a mathematical model connecting epilimnion and hypolimnion" in the Math Biology Seminar, at 3pm on Thursday October 29th. Below please find the abstract and detailed information regarding his talk.
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Mathematical Biology Seminar
3pm-4pm, Thursday, Oct 29, 2020
Join Zoom Meeting via
https://ucf.zoom.us/j/91777376704
Zoom Meeting ID: 917 7737 6704
Speaker:
Junping Shi
http://jxshix.people.wm.edu/
Department of Mathematics
William & Mary
Title: "Phytoplankton competition for nutrients and light in a stratified lake: a mathematical model connecting epilimnion and hypolimnion"
Abstract:
Various mathematical models describing vertical distribution of phytoplankton in the water column will be introduced. In particular, we will introduce a new mathematical model connecting epilimnion and hypolimnion to describe the growth of phytoplankton limited by nutrients and light in a stratified lake. Stratification separates the lake with a horizontal plane called thermocline into two zones : epilimnion and hypolimnion. The epilimnion is the upper zone which is warm (lighter) and well-mixed; and the hypolimnion is the bottom colder zone which is usually dark and relatively undisturbed. The growth of phytoplankton in the water column depends on two essential resources: nutrients and light. The critical thresholds for settling speed of phytoplankton cells in the thermocline and the loss rate of phytoplankton are established, which determine the survival or extirpation of phytoplankton in epilimnion and hypolimnion. This is a joint work with Jimin Zhang (Heilongjiang University), Jude Kong (York University) and Hao Wang (University of Alberta).
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You could also find more detailed information at the seminar website (https://www.mathbio.nevai.net/calendar/2020/Autumn.php).
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