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Dr. Reagan M. Errera

Assistant Professor - Research

Room 217, RNR Building
Baton Rouge, LA 70803

phone: (225)578-7416
email: rerrera@lsu.edu

2013 Doctor of Philosophy: Oceanography
Texas A&M University, College Station, Texas
2006 Master of Science: Wildlife and Fisheries Science
Texas A&M University, College Station, Texas
2002 Bachelor of Science: Biology and History
Trinity University, San Antonio, Texas

  • RNR 1001 – Natural Resource Conservation
  • RNR 1002 – Issues in Natural Resource Management
  • RNR 2101 – Ecology of Renewable Natural Resources
  • RNR 4025 – Limnology
  • RNR 4101 – Integrating Natural Resources Management, Policy, and Human Dimensions
  • RNR 4061 – Coastal Africa Field Studies

My research focuses on phytoplankton ecology with a special focus on global climate change and harmful algal species. I take a multi-dimensional approach to phytoplankton research by studying numerous levels within the ecological hierarchy, ranging from exploring cellular functions to community dynamics. Phytoplankton are key players in marine and freshwater communities and thus knowledge of their functional role improves our understanding of aquatic ecosystems. As the foundation of the food web, changes in the structure and function of phytoplankton due to global climate change will have significant impacts on community dynamics. I also have an interest in harmful algal species, specifically the factors influencing toxin production and allelopathic chemicals. While I have historically focused my research on Karenia brevis, the major toxic alga in the Gulf of Mexico, I am currently exploring other HAB species such as Pseduo-nitzchia spp. and Microcystis spp.

  • Impact of ocean acidification on phytoplankton assemblages within Barataria Bay Estuary and Four League Bay Estuary.
  • Evaluating ocean acidification on estuarine diatoms in the presence of organic contaminates.
  • Understanding the impact of estuarine zooplankton to ocean acidification.
  • Determining seasonal changes and nutrient influences of the toxic diatom, Pseduo-nitzchia spp. and domoic acid along the southeastern coast of Mozambique, Africa.
  • Exploring Karenia brevis blooms along the northern Gulf of Mexico (LA & MS)
  • Errera, RM, Kessler, J, Yvon-Lewis, S, Campbell, L. 2014. Response of the harmful alga, Karenia brevis, to pre-industrial, current, and future pCO2 and sea surface temperatures. Harmful Algae 37:110-116.
  • Henrichs, DW, Scott, PS, Steidinger, KA, Errera, RM, Abraham, A, Campbell, L. 2013. Morphology and phylogeny of Prorocentrum texanum sp. nov. (Dinophyceae): A new toxic dinoflagellate from the Gulf of Mexico coastal waters exhibiting two distinct morphologies. Journal of Phycology 49: 143-155.
  • Errera, RM, Campbell, L. 2011. Osmotic stress triggers toxin production by the dinoflagellate Karenia brevis. Proceeding of the National Academy of Sciences of the United States of America 108 (26): 10597-10601.
  • Errera, RM, Bourdelais, A, Drennan, MA, Dodd, EB, Henrichs, DW, Campbell, L. 2010. Variation in brevetoxin and brevenal content among clonal cultures of Karenia brevis. Toxicon 55: 195-203.
  • Roelke, DL, Schwierzke, L, Brooks, BW, Grover, JP, Errera, RM, Valenti, TW, Pinckney, JL. 2010. Factors influencing Prymnesium parvum population dynamics during bloom formation: Results from in-lake mesocosm experiments. Journal of the American Water Resources Association 46: 76-91.
  • Errera, RM, Roelke, DL, Kiesling, R, Brooks, B, Grover, J, Schwierzke, L, Urena-Montoya, F, Baker, J, Pinckney, J. 2008. The effect of imbalanced nutrients and immigration on Prymnesium parvum community dominance and toxicity: Results from in-lake microscosm experiments, Texas, USA. Aquatic Microbial Ecology 52: 33-44.
  • Roelke, DL, Errera, RM, Kiesling, R, Brooks, BW, Grover, JP, Schwierzke, L, Ureña-Boeck, F, Baker, J, Pinckney, JL. 2007. Effects of nutrient enrichment on Prymnesium parvum population dynamics and toxicity: results from field experiments, Lake Possum Kingdom, USA. Aquatic Microbial Ecology 46:125-140.
  • Baker, J, Grover, JP, Brooks, B, Urena-Montoya, F, Roelke, DL, Errera, RM, Kiesling, R. 2007. Growth and Toxicity of Prymnesium parvum (Haptophyta) as a function of salinity, light, and temperature. Journal of Phycology 43:219-227.
  • Grover, J, Baker, J, Ureña-Boeck, F, Brooks, BW, Roelke, DL, Errera, RM, Kiesling, R. 2007. Laboratory tests of ammonium and barley straw extract as agents to suppress abundance of the harmful alga Prymnesium parvum and its toxicity to fish. Water Research 41(12): 2503-2512.
revised: 07-Feb-2019 7:06