BACKGROUND As a response to harsh environments, the crustacean artemia produces diapause gastrula embryos (cysts), in which cell division and embryonic development are totally arrested. This dormant state can last for very long periods but be terminated by specific environmental stimuli. Thus, artemia is an ideal model organism in which to study cell cycle arrest and embryonic development. PR...

Endemic Artemia franciscana populations can be found throughout the American continent and also as an introduced specie in several country all over the world, such as in the Mediterranean region where Artemia franciscana was identified as an invasive specie replacing native Artemia parthenogenetica and Artemia salina. In the present study, the characterization of the new invasive Artemia franci...

The loss rates of protein and lipids were determined for enriched Artemia franciscana starved Ž y1. at different temperatures after enrichment. Following 12-h enrichment with DHA Selco 0.2 g l Ž at 288C, the nauplii were temperature acclimated and transferred to starving condition 0–96 h; . 58C to 308C . y1 Ž . Ž The total lipid content during enrichment increased from 145 mg g dry weight DW ne...

The present study revealed the toxic effect of silver nanoparticles (AgNPs) in Artemia nauplii and evaluated the mortality rate, hatching percentage, and genotoxic effect in Artemia nauplii/cysts. The AgNPs were commercially purchased and characterized using field emission scanning electron microscope with energy dispersive X-ray spectroscopy. Nanoparticles were spherical in nature and with siz...

The effect of diet on larval growth, anionic trypsinogen gene expression (ssetryp1), and trypsin (EC 3.4.21.4) and chymotrypsin (EC 3.4.21.1) activities was assessed in Solea senegalensis. Changes in larval carbon stable isotope (δ(13)C) composition were used to estimate carbon assimilation. Diets were supplied for 20days to fish held in larval rearing tanks and consisted of live rotifers, Arte...

fish oil is the important fat source in fish nutrition. high demand for fish oil and low global supply arise a need of alternative oils in fish culture. plant oils are a good candidate in this case. the aim of the present study was to compare the efficacy of fish oil and linseed oil on growth and stress resistance of tiger barb ( puntius tetrazona ) larvae. artemia nauplii were enriched by 2.5,...