AbstractThe overall objective of th

Abstract
The overall objective of this research project was to determine if land-based culture of eastern oysters (Crassostrea virginica) is a feasible option using recirculating aquaculture systems with synthetically derived seawater. A twelve week growout study was conducted in a closed-loop recirculating system with zero discharge using synthetically derived seawater. Two species of marine microalgae (Chaetoceros spp. and Isochrysis spp.) were cultured as oyster feed. Oysters were batch fed daily and amounts of algae cells offered to oysters were monitored. Overall, oyster survival remained greater than 99% and growth was steady and averaged 1.3, 1.1, and 0.33 mm per week for length, width, and thickness, respectively. Mean weight increased an average of 0.39 g per week. The means to maintaining suitable water quality was nitrification and supplementation of calcium to maintain ambient levels representative of their natural environments. Data collected is also useful for those who wish to study oysters in controlled environments or for genetic and/or breeding programs.

ผลลัพธ์ (อังกฤษ) 1:

abstract
the overall objective of this research project was to determine if land-based culture of eastern oysters (crassostrea virginica) is a feasible option using recirculating aquaculture systems with synthetically derived seawater. a twelve week growout study was conducted in a closed-loop recirculating system with zero discharge using synthetically derived seawater.39 g per week. the means to maintaining suitable water quality was nitrification and supplementation of calcium to maintain ambient levels representative of their natural environments. data collected is also useful for those who wish to study oysters in controlled environments or for genetic and / or breeding programs.

ผลลัพธ์ (อังกฤษ) 3:

Abstract The overall objective of this research project was to determine if land-based culture of eastern oysters (Crassostrea virginica) is a feasible option synthetically derived using recirculating aquaculture systems with seawater. A twelve week growout study was conducted in a closed-loop recirculating system with zero discharge synthetically derived using seawater.Two species of marine microalgae (Chaetoceros spp. And Isochrysis spp. ), were cultured as oyster feed. Oysters were batch fed daily and amounts of algae cells offered to oysters were monitored. Overall, oyster survival remained greater than 99 %, and growth was steady and averaged 1.3, 1.1, and 0.33 mm per week for length, width, and thickness, respectively. Mean weight increased an average of 0.39 g per week. The means suitable to maintaining water quality and nitrification was supplementation of calcium to maintain ambient levels representative of their natural environments. Data collected is also useful for those who wish to study in controlled environments or oysters for genetic and/or breeding programs.