Abstract
The successful operation of fish farms is of paramount importance. This short paper summarizes the environmental physics which applies in a vertically well mixed water body in a coastal location maintained by tidal exchange, which is where most productive fish farms are located. Analytical formulae are given which are easily applied from basic oceanographic data and the fish stock which is proposed for the cages in the aquaculture farm. No specialist oceanographic knowledge is assumed for the implementation of the formulae, as is demonstrated from a case study for an aquaculture farm in South Australia.
Highlights
The successful operation of fish farms is of paramount importance
We need to determine the stirring velocity for the ventilated cage This can be done by considering a cage which is situated in a tidal stream of ambient concentration
On substituting for < U > and setting c= co + cm we find that since the ambient material concentration is co, the stirring velocity due to the tidal motion, Uc = UT / π 2, and that the cage time constant, Tc = 1⁄4 Dπ 2 / UT
Summary
The successful operation of fish farms is of paramount importance. This short paper summarizes the environmental physics which applies in a vertically well mixed water body in a coastal location maintained by tidal exchange, which is where most productive fish farms are located. Analytical formulae are given which are applied from basic oceanographic data and the fish stock which is proposed for the cages in the aquaculture farm. No specialist oceanographic knowledge is assumed for the implementation of the formulae, as is demonstrated from a case study for an aquaculture farm in South Australia
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