- About
- With 500+ faculty, staff and students and three campus locations, the Batten School & VIMS are equipped to tackle pressing challenges through research, education and advisory service.
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- Research & Advisory
- Purple marsh crabs are significantly disrupting carbon cycling in salt marshes along the East Coast of the U.S., according to a study led by Batten School & VIMS scientists.
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- Batten School
- The R. Todd Stravitz Scholars Program will provide full tuition support for students pursuing the new bachelor’s degree in coastal & marine sciences at the Batten School & VIMS.
  
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- Engage
- Popular, free camps enable rising third through eighth graders to learn about the Chesapeake Bay, coastal ecosystems and environmental stewardship.
  
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- News & Events
- National TRAP Program funds large-scale cleanup of discarded fishing gear, first round of subawards totaling more than $1.4M supports 11 projects focused on removing derelict fishing gear from coastal waters in nine U.S. states and Palau.
  
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- Giving
- As an expression of parental pride in their daughter, Taylor Spencer ‘83 and Martha Spencer recently established an undergraduate field research endowment at the Batten School & VIMS.
  
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Julianne Grenn

Ph.D. Student

Email: jmgrenn@vims.edu
Phone: (804) 684-7313
Office: Andrews Hall 434D
Advisor: Dr. Bill Walton

Education

B.S. Biology, Lake Superior State University, 2020.

Interests

Fly fishing, hiking, baking, and long walks.

Research Interests

My research before VIMS focused on Great Lakes aquaculture. I cultured various freshwater finfish species in recirculating aquaculture systems (RAS), indoor and outdoor flow-through raceways, and aquaponic systems. My current research at VIMS centers on investigating the microhabitats of oyster grow-out bags and baskets. My project examines how various husbandry decisions at commercial oyster farms (degree of biofouling, ploidy, stocking density) affect the microclimate of off-bottom grow-out bags and baskets (DO, pH, turbidity, chlorophyll, salinity, temperature). I am interested in working with aquaculture producers to identify mechanisms that improve farm efficiency and develop more streamlined husbandry practices.