Distribution and characterization of Chilean populations of the brine shrimp Artemia (Crustacea, Branchiopoda, Anostraca) |
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| Authors: | Oscar Zuñiga Rodolfo Wilson Francisco Amat Francisco Hontoria |
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| Institution: | (1) Departamento de Acuicultura, Facultad de Recursos del Mar, Universidad de Antofagasta, Antofagasta, Chile;(2) Instituto de Acuicultura de Torre de la Sal (CSIC), 12595 Ribera de Cabanes, Castellón, España |
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| Abstract: | Hypersaline habitats in Chile, from marine solar salt pans to saline lagoons and pools in Andean salars, were prospected in search of Artemia populations. These saline ecosystems were characterized through physico-chemical parameters and ionic composition of their brines. Biometrics of cysts and nauplii, as well as morphometrics by using multivariate discriminant analysis for adult specimens evidenced that the Chilean populations of brine shrimp belong to A. franciscana. Cross-breeding results supported the former hypothesis of conspecific Chilean populations, and their differences with A. persimilis, also endemic to the New World, but restricted to Argentinean sites. |
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| Keywords: | Artemia Chilean populations hypersaline ecosystems cysts nauplii adult morphology crossbreeding |
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