Greg J. Teegarden
Greg J. TeegardenProfessor, Natural Sciences Department
PhD, University of Rhode Island
MS, University of Maine
BA, University of Colorado

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Alfond Hall 422 | 207-893-7979 |

Teaches Environmental and Marine Sciences courses including Marine Ecology, the Environmental Seminar, Ecology and the Environmental Challenge, Oceanography, and Fisheries.

Scholarly interests – harmful algal blooms, toxins in marine food webs, effects of changing environments on plankton productivity.

Greg Teegarden’s research is in the field of harmful algal bloom (HAB) ecology, focusing on bloom dynamics and trophic interactions of Maine’s “red tide” alga, Alexandrium. His early work focused on planktonic food webs, and toxin transfer from plankton to higher levels. More recently, he focuses on oceanographic effects of changing climate and hydrography on coastal harmful algae populations.

Outside of work, Professor Teegarden enjoys outdoor activities such as hiking, skiing, and kayaking, music and instrument construction, antiquarian books, but most of all, family.


Association for the Study of Limnology and Oceanography (ASLO)


Leandro, L., G.J. Teegarden, P.B. Roth, Z. Wang, G.J. Doucette (2010). “The copepod Calanus finmarchicus: a potential vector for the trophic transfer of the marine algal biotoxin, domoic acid.” Journal of Experimental Marine Biology and Ecology 382: 88-95.

Teegarden, G.J., R.G. Campbell, D.T. Anson, A. Ouellett, B.A. Westman, E.G. Durbin (2008). “Copepod feeding response to varying Alexandrium spp. cellular toxicity and cell concentration among natural plankton samples.” Harmful Algae 7: 33-44.

Campbell, R.G., G.J. Teegarden, A.D. Cembella and E.G. Durbin (2005). “Zooplankton grazing impacts on Alexandrium spp. in the nearshore environment of the Gulf of Maine.” Deep Sea Research II 52: 2817-2833.

Teegarden, G.J., Cembella, A.D., Capuano, C.L., Barron, S.H., and Durbin, E.G. (2003) “Phycotoxin accumulation in zooplankton feeding on Alexandrium fundyense – vector or sink?” Journal of Plankton Research 25: 429-443

Durbin, E.G., G.J. Teegarden, R.G. Campbell, A.D. Cembella, M. Baumgartner, and B.R. Mate (2002). “North Atlantic right whale, Eubalaena glacialis, exposed to paralytic shellfish poisoning (PSP) toxins via a zooplankton vector, Calanus finmarchicus.” Harmful Algae 1: 243-251


2009 – ECOHAB National Science Initiative, NASA, $605,759 (subcontract to Teegarden $99,176) Awarded to C.S. Roesler, G.J. Teegarden, E.P. Laine (University of Maine, Saint Joseph’s College, Bowdoin College). Funding for red tide remote sensing using an oceanographic buoy.

2005 – National Science Foundation, Major Research Instrumentation Program, $388,913 Awarded to E.P. Laine, C.S. Roesler and G.J. Teegarden (Bowdoin College, Bigelow Laboratory for Ocean Sciences, Saint Joseph’s College of Maine). Funding for an oceanographic remote sensing buoy, deployed in Casco Bay, to deliver real-time monitoring of ecosystem parameters.

2001 – 2004 ECOHAB National Science Initiative, NOAA, $522,367 (subcontract to Teegarden, $109,673). Awarded to G.J. Teegarden, R.G. Campbell, E.G. Durbin, and A.D. Cembella (Saint Joseph’s College, Graduate School of Oceanography at the University of Rhode Island, and Institute for Marine Biosciences, Halifax, Nova Scotia)

2009-2013 The Eastern Maine Conservation Initiative ($14,590). Funds for collaborative research (primarily student intern funding) on red tide research and with the Friends of Casco Bay.

2005-2010 The Davis Foundation ($26,500), funding student internships and research in Casco Bay.

Pedogogical Methods

He enjoys promoting project-based learning, and community-engaged learning. He is an instructor on the experiential/immersion Environmental Science Semester.

Excursions/Trips with Students or for Academic Research

The Environmental Science Semester takes 8-10 students into the field for a 10 week immersion into environmental and marine science. All students learn by doing, studying diverse ecosystems from the mountains of New Hampshire to the salt marshes of southern Maine, through Atlantic Canada, along the coast and even on a sailing schooner in the Gulf of Maine. Research with interns keeps us busy in the waters of Casco Bay.