3.2. Taxonomic tests
From the 617 strains analyzed for their morphological and basic physiological characteristics Table 2 , 94% of them were Gram-positive and only 6% Gram-negative.Ž . The potentials Vibrio spp. ŽGram-negative rods or coccoid bodies. represented only 1.94% of the isolates ŽTable 2 , nevertheless, they were oxidase-negative. The cocci. Gram-positive and Gram-negative account almost 22%. In TCBS media, almost 72% present a yellow colony in TCBS agar. Also, most of the isolates in TCBS 96.6 % ,Ž . when subculturing in ZoBell media, show a pigmented colony. All of the 617 strains were oxidase-negative and catalase positive. All of the 52 selected strains 15 cocci andŽ 37 bacillircoccobacilli, Gram-positive were strict aerobic do not ferment glucose on. Ž O–F media . From the 15 cocci, 46% of them grow in 15% NaCl..