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Next Regional Meeting
September 14th @ 5:30pm

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Chocktawhatchee Basin Alliance seeking volunteers

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Lakewatch Videos

Video:

UF/IFAS research highlight of the FLorida LAKEWATCH program
, LAKEWATCH Director Mark Hoyer

Video:

Establishing numeric nutrient criteria for Florida lakes
, Dr. Dan Canfield

Video:

Problems with the proposed (now adopted) numeric nutrient criteria for Florida lakes
, Dr. Roger Bachmann

Meet the Team

Mark Hoyer

Mark Hoyer is the Director of the Florida LAKEWATCH program in the UF/IFAS School of Forest Resources and Conservation, Fisheries and Aquatic Sciences. He received a Bachelor of Science in Fisheries and Wildlife Biology from lowa State University; his Master of Science in Limnology is from the University of Missouri, Columbia.

He has worked extensively on the interrelationships of water chemistry, aquatic macrophyte communities, fish populations, and aquatic bird populations. In lowa and Missouri, his primary interest was lake eutrophication, including nutrient loading models and the relationship between in-lake nutrients and chlorophyll a.

Mark came to the University of Florida in l983; the vast range of aquatic systems he has encountered in Florida has made him aware of the state's great resources. During this time, Mark has authored/coauthored over 90 refereed articles, three books and many other technical publications.

Mark is an active member of both national and state chapters of the North American Lake Management Society (NALMS), American Fisheries Society (AFS) and Aquatic Plant Management Society (APMS). Mark is a NALMS Certified Lake Manager (CLM) and an AFS Certified Fisheries Scientist (CFS). Mark has been especially active in NALMS serving as NALMS President from 2009 – 2011.

Mark has also been active in Florida Lake Management Society (FLMS) since its beginning in the early 1990’s receiving FLMS awards for Best Paper (1993), The President’s Award (1996) and the Edward Deevy, Jr. Award (2008). Additionally, Mark serves on the Executive Board for the National Reservoir Fisheries Habitat Partnership, representing NALMS. He also serves on the Executive Board of the Florida Water Resources Monitoring Council representing Volunteer Monitoring Programs and under that entity is actively working with both the Groundwater Salinity Network Working Group and Coastal Water Monitoring Network Working Group.

Recent Publications

  • Bachmann, R. W., Bigham D. L., Hoyer M. V., Canfield D. E, Jr. 2012a. Factors determining the distributions of total phosphorus, total nitrogen and chlorophyll a in Florida lakes. Lake Reserv Manage. 28:10-26.
  • Bachmann, R. W., Bigham D. L., Hoyer M. V., Canfield D. E, Jr. 2012b. Phosphorus, nitrogen and the designated uses of Florida lakes. Lake Reserv Manage. 28:46-58.
  • Bachmann, R. W., Bigham D. L., Hoyer M. V., Canfield D. E, Jr. 2012c. A strategy for establishing numeric nutrient criteria for Florida lakes. Lake Reserv Manage. 28:84-92.
  • Hoyer, M. V., N. Wellendorf, R. Frydenborg, D. Bartlett, and D. E. Canfield, Jr. 2012. A comparison between professionally (Florida Department of Environmental Protection) and volunteer (Florida LAKEWATCH) collected trophic state chemistry data in Florida. Lake Reservoir Management. 28: 277-281.
  • Carlson, R. E., D. E. Canfield Jr., D. L. Bigham, R. W. Bachmann, M. V. Hoyer, and C. A. Horsburgh. 2012. The Secchi Dip-In: Expanding our knowledge of North American lakes. LAKELINE: Summer 2012. North American Lake Management Society.
  • Hoyer, M. V., N. Wellendorf, R. Frydenborg, D. Bartlett, and D. E. Canfield, Jr. 2012. A comparison between professionally (Florida Department of Environmental Protection) and volunteer (Florida LAKEWATCH) collected trophic state chemistry data in Florida. Lake Reservoir Management. 28: 277-281.
  • Bachmann, R. W., M. V. Hoyer, D. E. Canfield, Jr. 2013. The extent that natural lakes in the United States of America have been changed by cultural eutrophication. Limnology and Oceanography. 58: 945 – 950.
  • Hoyer, M. V., J. B. Terrell, and D. E. Canfield, Jr. 2013. Water Chemistry in Choctawhatchee Bay, Florida USA: Spatial and Temporal Considerations Based on Volunteer Collected Data. Florida Scientist. 76: 453-466.
  • Bachmann, R. W., M. V. Hoyer, D. E. Canfield, Jr. 2013. Effects of pH and specific conductance confound the use of the Florida Lake Vegetation Index to identify anthropogenic eutrophication. Inland Waters 3: 351-358.
  • Canfield, D. E. Jr., D. J. Pecora, K. W. Larson, J. S. Stephens, and M. V. Hoyer. 2013. Stocking wild adult Florida largemouth bass (Micropterus salmoides floridanus): An additional fish management tool. Lake and Reservoirs: research and Management 18: 239-245.
  • Hoyer, M. V., D. L. Bigham, R. W. Bachmann, and D. E. Canfield, Jr. 2014. Florida LAKEWATCH: Citizen Scientists Monitoring Aquatic Systems and How Data Are Used. Florida Scientist. 77: 184-197.
  • Bachmann, R. W., M. V. Hoyer, D. E. Canfield, Jr. 2014 Response to comments: Quantification of the extent of cultural eutrophication of natural lakes in the United States. Limnology and Oceanography. 59:
  • Bigham, D. L, R. E. Carlson, D. E. Canfield, Jr., C. A. Horsburgh, M. V. Hoyer, and R. W. Bachmann. 2015. Regional Distribution of Secchi Disk Transparency in Waters of the. United States. Lake Reservoir Management. 31:55-63.
  • Hoyer, M. V., J. B. Terrell, and D. E. Canfield, Jr. 2015. Chain of Eutrophication Models for Assessing the Potential Impact of Nutrient Enrichment on Choctawhatchee Bay, FL, USA. Florida Scientist. Florida Scientist. 78:20-35.
  • Hoyer, M. V., T. McNabb, M. Allen, M. D. Netherland. 2015. Improving Communication/Cooperation Among Aquatic Professional Societies. Fisheries 40:248-251 (American Fisheries Society magazine). LakeLine 35: 62-64 (North American Lake Management Society Magazine). Aquatics 37:12-14 (Aquatic Plant Management Society Magazine).
  • Gwinn, D. C. M. S. Allen, K. I. Bonvechio, M. V. Hoyer and L.S. Beesley. 2015. Evaluating estimators of species richness: the importance of considering statistical error rate. Methods in Ecology and Evolution. doi: 10.1111/2041-210X.12462.
  • Hoyer, M. V., M. D. Netherland, and D. Jones. 2016. Littoral sediment accumulation 10-years after muck removal in Lake Tohopekaliga, FL, USA. Journal of Aquatic Plant Management. In Press.
  • Canfield D. E. Jr., R. W. Bachmann, D. B. Stephens, M. V. Hoyer, L. Bacon, S. Williams, and M. Scott. 2016. Monitoring by citizen scientists demonstrates water clarity of Maine (USA) lakes is stable, not declining, due to Fisheries. Inland Waters 6:11-27.