Molecular characterization and phylogenetic analysis of parasitic copepoda; Ergasilus sieboldi isolated from cultured gilthead sea bream (Sparus aurata) in Egypt, associated with analysis of oxidative stress biomarkers.

ABSTRACT: Parasitic copepods are common damaging ectoparasites of cultured marine fish that induce high mortalities in fish farms. The present study aimed to identify the cause of mass mortalities of cultured gilthead sea bream (Sparus aurata) as one of the highly valuable cultured marine fish species in Egypt. Parasitological examination demonstrated Ergasilus sieboldin (E. sieboldi) adult females of (1.3 ± 0.01 mm, n = 55) mean body length and (0.53 ± 0.04 mm) body width, lodged in the gill filaments of the forty examined fish with a pair of strong clawed antennae. The detected parasite has six segmented antennules and consists of cephalosome followed by four divided thoracic segments that narrow posteriorly, five pairs of swimming legs, genital segment, abdominal segments fol

SUBMITTER: Abdel-Radi S 

PROVIDER: S-EPMC9606149 | biostudies-literature | 2022 Dec

REPOSITORIES: biostudies-literature