Fig. 1

Main essential amino acids content and total essential amino acid content, between April 2010 and February 2011. A Methionine, B leucine, C arginine, D total essential amino acid content. Values are means of triplicate samples (±SD). Different superscript letters represent significant differences between months (P < 0.05) and should be interpreted in the following exemplificative manner: a not ≠ a, a ≠ b, a ≠ c; ab ≠ cd, a not ≠ ab, ab not ≠ bc. Temporal evolution in gonad development stages as determined by Gaspar and Monteiro (1998) is presented. MET methionine, LEU leucine, ARG arginine, ΣEAA total essential amino acid content