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By Claude Boyd, Aaron McNevin

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9 Source: FAO. Fishery Statistics. Yearbook of Fishery Statistics. Accessed: 10/15/13. htm 4 Aquaculture, Resource Use, and the Environment a particular location. Water temperature determines whether a site is suitable for coldwater, coolwater, warmwater, or tropical species. Of course water temperature varies seasonably, and at some warmwater sites, it is possible to culture coldwater or coolwater species in winter and tropical species in summer. For example, tilapia can be cultured in summer and rainbow trout can be cultured in winter—although it has ◦ only been done in research—in central Alabama (32 north latitude) in the United States.

Relatively little criticism has been directed at aquaculture for domestic markets—other than in developed countries where high value products are produced using feeds, for example, trout or salmon production in the United States or Europe. Tilapias, although often cultured in developing countries for domestic consumption, have become important export products that are increasingly produced with feeds. Thus tilapia production also has drawn the ire of eNGOs. The eNGOs, however, do not appear to be greatly concerned about the culture of seaweed and molluscs.

Berka, R. 1986. A brief insight into the history of Bohemian carp pond management. In R. Billard and J. Marcel, editors, Aquaculture of Cyprinids, pp. 35–40. Paris: Institut National de la Rescherche Agronomique. Boyd, C. E. and C. A. Boyd. 2012. Physiochemical characteristics of ponds. In J. W. Neal and D. W. Willis, editors, Small Impoundment Management in North America, pp. 49–82. Bethesda: American Fisheries Society. Boyd, C. E. and A. A. McNevin. 2011. An early assessment of the effectiveness of aquaculture certification and standards.

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