Agenda Background Cisco Temperature structure of lakes Dissolved oxygen Methods Broader impacts.

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Presentation transcript:

Agenda Background Cisco Temperature structure of lakes Dissolved oxygen Methods Broader impacts

Coldwater stenothermal fish Common forage fish Cisco

Lake Temperature

Heat Budget Q T = Total Heat Q R = Heat from radiation Q L = Latent heat processes Q S = Sensible heat transfer

Dissolved Oxygen Euphotic Zone Benthic Zone

Eutrophication

Methods Temperature Dissolved Oxygen Provided by Madeline Magee

Oxythermal Stress

Why is this important?

Questions?

Sources [1] Carpenter, S.R., S.G. Fisher, N.B. Grimm, and J.F. Kitchell Global change and freshwater ecosystems. Annual Review of Ecology and Systematics 23, 119–139. [2] "Freshwater Ecosystems." Freshwater Ecosystems. N.p., 4 July Web. 15 Feb [3] Fry, E.F.J The Effect of Environmental Factors on the Physiology of Fish. Academic Press, New York, NY. [4] Hsieh, Y.F., Robertson, D.M., Lathrop, R.C., and Wu, C.H., Influences of air temperature, wind, and water clarity on 100-year trends in ice cover and water temperature in a dimictic lake, Limnology and Oceanography, Accepted under revision, [5] Huff, D.D, S.L. Hubler, and A.N. Borisenko Using field data to estimate the realized thermal niche of aquatic vertebrates. North American Journal of Fisheries Management. 25: [6]"Lake Ecology -- Lake Zones." Lake Ecology -- Lake Zones. Environmental Protection Agency, n.d. Web. 15 Feb [7] Magnuson, J.J., et al Potential effects of climate changes on aquatic systems: Laurentian Great Lakes and Precambrian Shield Region. Hydrol. Process. 11: [8] Nurnburg, G.K Quantifying anoxia in lakes. Limnol. Oceanogr. 46: [9] Rudstam, L.G. and Magnuson Predicting the vertical distribution of fish populations: analysis of cisco, Coregonus artedii, and yellow perch, Perca flavescens. Can. J. Fish. Aq. Sci. 42 (6), [10] "Water on the Web | Understanding | Lake Ecology | Density Stratification." Water on the Web | Understanding | Lake Ecology | Density Stratification. N.p., n.d. Web. 15 Feb

Acknowledgements Professor Chin Wu Graduate student Madeline Magee