Collected reprints: Abstract 2903
Collected reprints
Abstract
Tackaert, W.; Sorgeloos, P. (1991). Biological management to improve Artemia and salt production at Tanggu saltworks in the P.R. China. Proceedings of International Symposium on Biotechnology of Saltponds 1991: 78-83
The worldwide distribution of the brine shrimp Artemia, in a variety of isolated biotopes with different ecological conditions, has resulted in the evolution of many geographical strains. Among these strains, substantial differences have been demonstrated in their nutritional quality and fitness, providing a basis for the selection of strains suitable for aquaculture. The Tanggu Saltworks (Tianjin, China) provide a unique environment for the production of Artemia. Unlike most other biotopes, they are characterized by a high primary productivity providing abundant food to sustain large populations of Artemia. Both laboratory studies and field observations, however, indicate that the local parthenogenetic Artemia strain has a low productivity (especially at lower temperatures) and a poorer resistance to high salinities than bisexual A. franciscana strains. Moreover, the particular climatological conditions of the Tanggu region tend to retard the natural colonization of the saltworks in spring, which may result in suboptimal hydrobiological conditions for salt production. In this paper, we propose a biological management plan involving controlled introduction of a selected Artemia strain with optimal productivity, and discuss possibilities to upgrade salt and Artemia production qualitatively and quantitatively.
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