Personnel Descriptions
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Roger Mann - Dr. Roger Mann is a professor at the Virginia Institute of Marine Science where he served as Director for Research and Advisory Services for nine years.  He has also held scientific positions at Woods Hole before arriving in Virginia in 1984.  He received a B.S. degree from the University of East Anglia, Norwich, U.K. and a Ph.D. from University College of North Wales, Bangor, Wales.

As Site Director for the Science Center for Marine Fisheries (SCeMFiS), an Industry-University Cooperative Research Center of the National Science Foundation, Roger hopes to use his expertise along with industry members to develop research projects that will provide information to maintain sustainable fisheries.

Roger conducts population assessments, physiological and ecological studies of bivalve molluscs and other molluscan species, as well as ecological restoration of oyster reef communities. He has received several professional appointments and academic awards including the Chesapeake Bay Commission's Tribute to Excellence, a two-term Governor's appointment to the Commonwealth's Aquaculture Advisory Board, a School of Marine Science Outstanding Teacher Award and a Plumeri Faculty Award.

Dr. Mann was also appointed to the Mid-Atlantic Fisheries Management Council and served on several committees from 2016-2019.

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Melissa Southworth - Missy is a senior marine scientist in the Molluscan Ecology Lab and also received an M.S. from VIMS. She runs the field program for the Molluscan Ecology Lab and is the lead scientist on the oyster patent tong, dredge, and shellstring surveys. Her interests include stock assessment of commercially viable shellfish species in the Chesapeake Bay, the development of best management practices in support of shellfish aquaculture in the Bay, restoration of oyster populations and oyster reef ecology and biology.

Theresa Redmond

Theresa Redmond - Theresa earned her B.S. in Marine Biology at the University of New England, Biddeford, ME. She obtained an M.S. in Marine Biology at NOVA Southern University, Dania Beach, Florida where Theresa completed a thesis on long-term stony coral transplantation and assisted in data collection and analysis for benthic monitoring, restoration and assessment of South Florida’s nearshore reef habitats. While as research specialist at VIMS, Theresa leads the bivalve aging and growth studies team, created the Molluscan Ecology Archive, plus manages and mentors interns, students, and technicians.

Alexis Hollander

Alexis Hollander - Alexis grew up in Central Wisconsin and spent her time exploring the lakes and forests of the area. She attended the University of Wisconsin-Stevens Point (UWSP) and earned a BS in Biology with minors in Chemistry and German. During her education in Stevens Point, Alexis conducted research in UWSP’s paleontology lab, inspiring her interest in climate science. As an intern with the Joint Institute for the Study of the Atmosphere and Ocean (JISAO), Alexis was introduced to marine ecology while studying larval fish under the direction of VIMS alumna, Dr. Alison Deary. Alexis was excited to join the Molluscan Ecology Lab at VIMS because of the welcoming atmosphere and the opportunity to work directly with shellfish industry members. Dr. Mann is a Site Director for the Science Center for Marine Fisheries (SCeMFiS), an NSF Industry/University Cooperative Research Center that affords graduate students the opportunity to work directly with finfish and shellfish industry members. Since entering the master’s program at VIMS, Alexis has gained experience collecting and processing Quahog shells for age study. She has also begun imaging and aging surfclam shells as part of her thesis investigating the effects of climate change on surfclam distribution and growth rates.

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Karen ReayKaren is the CEO of Baywater Communications and received a B.S. in Biology from Juniata College and an M.S. in Marine Science from VIMS. She has experience in web design, strategic planning, marketing, data, and information system development.  She incorporates these skills with her understanding of marine science to make information more accessible. Karen has over 30 years of experience working with government, academic agencies and industry. 


Joshua "Jay" CarnaghiJay spent five years in the U.S. Navy and eleven years in the U.S. Coast Guard. His duties included aviation and shipboard electronics, law enforcement (including fisheries), instruction and curriculum design, and information technology with an emphasis on security and risk analysis.  He is hoping to gain more insight about the marine biology field since it relates to his duties in the U.S. Coast Guard as a Law Enforcement Officer conducting fishing boat inspections and marine resource protection duties. Jay will be working in the Molluscan Ecology Lab assisting with the ocean quahog ageing project.

Nate Otto

Nathan "Nate" Otto - Nate is a Laboratory Specialist in the Molluscan Ecology Group. He is a Gloucester County Virginia local with a passion for ecology and the team he supports. His efforts bolster projects whether in the field or in a lab. Nate's primary work includes sclerochronology of bivalves and assisting on the oyster patent tong survey, but he is really a jack of all trades.

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Alexandria "Alex" Marquardt - Alex is a PhD student in the Molluscan Ecology Lab. She received her B.S. in Fisheries and Wildlife Science from Oregon State University and M.S. in Biological Sciences at California Polytechnic State University (Cal Poly - SLO), where her research focused on pismo clam reproduction, growth, and populations in California.  While at VIMS, Alex's PhD dissertation will focus on Virginia oysters in the Chesapeake Bay.