[Ultrastructural aspects of the dormant Artemia embryo]

The ultrastructure of the Artemia cyst and larval organism was investigated. The morphology of the blastomere and of the cell organelles was described. Investigations showed the presence of two mitochondria populations: one located in the cytoplasm, the other one embedded inside the yolk platelets. Relations between yolk and mitochondria are more obvious when considering the first steps of embryonic development.