Site Criteria

Many different sites may be adapted to cage culture. Potential sites include lakes, reservoirs, ponds, quarries, rivers, and streams. Each state may have specific laws governing the use of “public waters.” These laws may restrict private individuals from engaging in fish farming in public waters or may require permits for use of public waters. Check with the Department of Natural Resources, Department of Fish and Wildlife, or with the Cooperative Extension Service’s fisheries (or aquaculture) specialist in your state before using public waters for cage culture. Many ponds and quarries are not suitable for culturing fish in cages. The following are criteria that should be considered before attempting cage culture in an existing pond or quarry.

The surface area should be at least one half acre and preferably an acre or larger (but should not include weed infested areas of the pond).
The pond should be at least 6 feet deep over a sizable area, and most of the pond should be more than 3 feet deep.
The pond must have good water quality and should be located where prevailing winds blow across it.
The pond should not have direct access by livestock or large numbers of livestock in the watershed.
The pond should not have a highly erodible watershed or one that allows the accumulation of large amounts of organic debris.
The water level of the pond should not fluctuate greatly (2 to 3 feet) during the summer.
The pond should not have chronic problems with aquatic weeds, surface scums, over populations of wild fish, or oxygen depletion problems.
The pond should have an all weather access road.

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However Henry Sweet and some other scientists say that these criteria are not characteristic of the majority of such units.

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