TITLE:
Effect of Locality, Host Species and Sex on the Metazoan Parasitic Infestation of Two, Species of Scarus Fish from the Red Sea Coast at Jeddah and Rabigh in Saudi Arabia
AUTHORS:
Areej O. Bakhraibah
KEYWORDS:
Scarus Fish, Metazoan Parasites, Prevalence, Intensity, Fish Species, Fish Sex, Red Sea
JOURNAL NAME:
Open Journal of Animal Sciences,
Vol.8 No.3,
July
5,
2018
ABSTRACT:
A total number of 60 specimens
of two different species of Scarus fish caught from the Red Sea coast at
Jeddah (30) and Rabigh (30) cities in Saudi Arabia were examined to determine
their metazoan parasitic fauna, their prevalences, and mean intensities.
Collected parasites were identified as, Isopoda (praniza larva of Gnathia sp.), Copepoda (Hatschekia sp.)
Monogenea (Diplectanum sp.) and Digenea (Lecithoclaster and Bucephalus spp). Out of 30 specimens of fish caught from Jeddah coast 13
(43.4%) were infested by 90 parasites comprising of two parasite species,
praniza larva and Hatschekia sp., with prevalence of infestation 40% and 3.33%,
and mean intensity 7 and 6 parasites per fish respectively. 19 (63.3%) of Scarus fish caught from Rabigh coast were infested by 205 parasites representing 4
parasite spp. Diplectanum sp. represents the most commonly
encountered parasite with prevalence (53.3%) and mean intensity (10.94%), followed by (Lecithoclaster sp. then
praniza larva, prevalances (16.66% and 13.3%) and mean inentisities (3.4. and
1.75) respectively. Bucephalus sp. showed the minor, prevalence (3.33%)
and mean intensity (6). Generally Scarus fish species from Rabigh had
higher prevalence and mean intensity (63.3% and 7.59%) than Scarus fish species from Jeddah (43.4% and 6.92%). Female fish from Jeddah showed no parasitic
infestation, while males were infested (prevalence 65% and mean intensity
6.92). Female fish from Rabigh had higher prevalence (84.21) and lower
intensity (6.43) than males which showed prevalence (27.27%) and intensity
(19). Relationship between parasitic infestation and fish species and sex were
also studied in the two different localities and discussed.