Diseases caused by larval nematodes among some fishes in red sea

Abstract EN

This study was conducted on 1000 marine fish of different species.

Each species was represented by 100 fishes including Siganus rivulatus, Lutjanus spp, Lethrinus nebulosus, Pagellus acarne, Mulloides flavolineatus, Saurida undosquamis, Sardinella spp., Restrelliger kanagutra, Trachurus indicus, Antherinidae collected from Suez Canal water of Red Sea.

Fishes were apparently healthy and no pathognomonic signs except abdominal distension, hemorrhagic area on abdomen and emaciation.

PM lesions were in the form of enlargement and congestion in liver, excessive mucus secretion and swelling in intestine, petecheal hemorrhage on stomach and presence of nematodes on liver and intestine.

The isolated parasitic larval nematodes were (Anisakis simplex, Hysterothylacium fabri, Contracaecum ovales, Raphidascaris acus, Cucullanus truttae, Eustrongylides sp., Paraquimperia sp., Cystidicala farions.

The morphological description of the isolated nematodes was recorded.

Also, the total and seasonal prevalence were investigated and discussed.