Assessment of the production potential of an emerging Artemia population in the Aral Sea, Uzbekistan

作者：Marden Brad; Van Stappen Gilbert^*; Musaev Ablatdyin; Mirabdullayev Iskandar; Joldasova Iliya; Sorgeloos Patrick

来源：Journal of Marine Systems, 2012, 92(1): 42-52.

DOI：10.1016/j.jmarsys.2011.10.004

• Artemia
• Brine shrimp
• Standing crop
• Productivity
• Exploitation
• Aquaculture

The objective of this study was to provide information on the developing parthenogenetic Artemia population in the Uzbek part of the Aral Sea, and to assess its potential for commercial exploitation. A sampling campaign was designed for abiotic factors (temperature, salinity, transparency) and Artemia population parameters at least once monthly in the period March-October of the years 2005-2007. %26lt;br%26gt;By 2007 salinity in both basins had increased to values above 100 g I-1. Moreover, by 2007, desiccation had rendered the eastern Aral basin practically inaccessible for sampling or cyst harvesting. The volume of the western basin remained considerable, given its depth, with a relatively accessible shoreline. Average Artemia population parameters (e.g. adult abundance %26lt;0.5 adults I-1; 10-25 cysts brood(-1); cyst abundance %26lt;5 and 10 cysts I-1 for the western, resp. eastern basin) were low compared to Artemia sites of commercial importance. A gradual gain in population size in the western basin was observed over the period 2005-2007. The data further suggest that the low Artemia productivity is not genetically determined, but is largely the result of food limitation. The western basin may approach the threshold where a small-scale commercial operation is justified.

• 出版日期2012-4