Aquaculture Program

Effluent Management

Effluent Management includes the integration of intensive marine finfish culture with the nursery culture of marine bivalve mollusks to reduce the nutrient composition of RAS effluent and to develop efficient techniques for producing bivalves for stock enhancement and habitat restoration projects. Converting expensive nitrogen and solid waste into a valuable product will increase overall profit for the farmer, while reducing environmental pollution. Current research focuses on RAS effluent-based culture of Isochrysis galbana and Tetraselmis suecica and wild phytoplankton in polyculture with the eastern oyster Crassostrea virginica and the hard clam Mercenaria mercenaria. Other trials include using saltmarsh plants such as Salicornia sp. for effluent mitigation.

Juvenile oysters are used to filter effluent-grown microalgae. Biofilter culture of diatom Chaetoceros sp. Saltmarsh plant sample of Salicornia sp. used to mitigate black sea bass effluent. Salicornia sp. effluent mitigation trial.
Microalgal cultures of effluent-grown microalgae. Oyster filtration study. Oyster filtration of microalgal trial. Sturgeon City's site for future effluent mitigation trials with a Ruppia sp.

[Click on any image above to view Effluent Management gallery.]