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  • Title: Hemolymph patterns of free amino acids in the brine shrimp Artemia franciscana after three days starvation at different salinities.
    Author: Nakamura K, Iwaizumi K, Yamada S.
    Journal: Comp Biochem Physiol A Mol Integr Physiol; 2007 May; 147(1):254-9. PubMed ID: 17307373.
    Abstract:
    The hemolymph pattern of free amino acids was examined in the brine shrimp, Artemia franciscana (Great Salt Lake origin). After one-month acclimation to 35 or 60 ppt salinity at 27 degrees C, the animals were transferred to 10, 35 or 60 ppt salinities to continue acclimation for 3 days without feeding at 27 degrees C. The osmolarity of one of the new media was raised by glycerol addition. In the hemolymph, 8 amino acids such as taurine, alanine, threonine, serine, lysine, glycine, arginine and leucine, comprised approximately 70% of the total content of free amino acids. This pattern suggested internal proteolysis due to starvation at high temperature. The total content of free amino acids significantly increased at 10 and 60 ppt salinities in comparison to 35 ppt. The hemolymph patterns from the 10 ppt and glycerol-added media showed a singularly high peak of taurine or alanine.
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