| The brine shrimp <i>Artemia</i> , a typical inhabitant of hypersaline environments and characterized by a highly subdivided population structure, was used as a model to evaluate, under standardized laboratory conditions (at 65 ppt), primary reproductive traits (offspring quality and quantity) along with levels of reproductive isolation and degrees of divergence among populations. Intrapopulation experimental crosses and cross-fertility tests were evaluated in five populations (mostly <i>A. franciscana</i>) from coastal and inland environments in Chile, and in reference samples of <i>A. franciscana</i> (San Francisco Bay, USA) and <i>A. persimilis</i> (Buenos Aires, Argentina), which are the species likely to... |
