Changes in plasma amino acid levels in a euryhaline fish exposed to different environmental salinities. | - CCMAR -

Journal Article

TítuloChanges in plasma amino acid levels in a euryhaline fish exposed to different environmental salinities.
Publication TypeJournal Article
AuthorsAragão, C, Costas, B, Vargas-Chacoff, L, Ruiz-Jarabo, I, Dinis, MTeresa, Mancera, JMiguel, Conceição, LEC
Year of Publication2010
JournalAmino Acids
Volume38
Questão1
Date Published2010 Jan
Pagination311-7
ISSN1438-2199
Palavras-chaveAmino Acids, Animals, Flatfishes, Random Allocation, Salinity, Seawater, Sodium Chloride
Abstract

Previous studies have shown that Senegalese sole is partially euryhaline in the juvenile phase, being able to adapt to a wide range of salinities in a short-time period, due to changes at the osmoregulatory and metabolic level. This study aimed to assess the effects of acclimation of sole to a wide range of salinities, with a special emphasis on the role of plasma amino acids during this process. Sole juveniles were acclimated for 2 weeks to different salinities: 5, 15, 25, 38, and 55 g L(-1). Plasma levels of cortisol, glucose, osmolality, and free amino acids were assessed at the end. Changes in plasma levels of cortisol, glucose, and amino acids indicate that fish reared at 5 and 55 g L(-1) were facing extra energy costs. Amino acids seem to play an important role during salinity acclimation, either as energy sources or as important osmolytes for cell volume regulation.

DOI10.1007/s00726-009-0252-9
Sapientia

http://www.ncbi.nlm.nih.gov/pubmed/19229587?dopt=Abstract

Alternate JournalAmino Acids
PubMed ID19229587