AMINO-ACID SPECTRA OF 2 NEMATODE SPECIES (NEMATODA, DRACUNCULOIDEA) PARASITIZING FISHES IN THE CZECH-REPUBLIC

The amino acid (AA) spectra of females of two nematode species are rep orted: Anguillicola crassus - (Anguillicolidae), from the host Anguill a anguilla and Philometra ovata - (Philometridae), from the host Abram is brama. Seventeen AA, of these 11 essential AA (EAA) and 6 non-essen tial AA (NEAA) were determined. Differences in quantitative values of AA in the nematode species compared (A. crassus : Ph. ovaba) are stati stically significant in 9 EAA and 4 NEAA. In the EAA set of A. crassus the highest values are in methionine, valine and tyrosine, in that of Ph. ovata in arginine, leucine and valine. In the NEAA set of both sp ecies, the highest values were indicated by glutamic acid and aspartic acid. Differences between both nematode species were found in proline , alanine, glycine and serine (in respective hierarchic quantitative o rder). In the species A. crassus the AA spectrum was examined in 3 gro ups. The first sample (ACE) consisted of females in beginning maturati on phase, the second sample (ACL) consisted of fully mature females wi th embryonated eggs and fully developed sheathed larvae. The third sam ple (ACT) consisted of both growing phases in nematodes (ACE + ACL). T he comparison of the analysis results between ACE and ACL revealed sta tistically significant differences in the quantitative values in 13 AA .