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GLIN==> Upcoming Coastal Hypoxia Seminar



Dr. Marco Costantini from the NOAA Great Lakes Environmental Research Laboratory, will be giving a seminar on Tuesday December 19, as a part of the NOAA/ University of Michigan Coastal Hypoxia Seminar Series.

Please find details of his talk listed below.

Title: Potential Positive Effects of Hypoxia on Fish Habitat Quality

Speaker: Dr. Marco Costantini, NRC Associate, NOAA Great Lakes Environmental Research Laboratory

Date: Tuesday December 19

Time: 1030 AM

Location: NOAA/ GLERL
2205 Commonwealth Blvd., Ann Arbor, MI, 48105
Abstract
Bioenergetics models, designed for processing spatially-explicit environmental and biological data, were used to estimate the effects of hypoxia on potential growth and habitat quality of fish predators; i.e., walleye in Lake Erie and striped bass in Chesapeake Bay. In both systems, both positive and negative effects of hypoxia on predators were observed. Specifically, hypoxia reduces potential growth in deoxygenated waters and enhances predation efficiency/prey vulnerability by forcing prey in oxygenated surface waters. In Lake Erie, our results suggest that the recent reappearance of hypoxia in the central basin may only minimally influence the walleye habitat quality. In Chesapeake Bay, our findings have led us to speculate that hypoxia actually may indirectly benefit striped bass by increasing susceptibility of their fish prey, and that hypoxia may initially have played a role in the recovery of striped bass during the mid-1980s. Examples of how the interplay between the hypoxia-driven effects could impact the management of economically and ecologically important fish stocks are given.
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If you have any questions or concerns, please email me at kanika.suri@noaa.gov; or call 734-741-2147.

For more information about the seminar series, please visit our website at http://www.glerl.noaa.gov/news/seminars/

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Kanika Suri
Web Designer Associate

NOAA Great Lakes Environmental Research Laboratory
2205 Commonwealth Blvd.,
Ann Arbor, MI
48105

Tel: (734) 741-2147
Fax: (734) 741-2055

www.glerl.noaa.gov

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