Seida A
Egypt
Research Article
Caligus elongatus and Photobacterium damselae subsp piscicida Concomitant Infections Affecting Broodstock European Seabass, Dicentrarchus labrax, with Special Reference to Histopathological Responses
Author(s): Elgendy MY, Abdelsalam M, Moustafa M, Kenawy AM and Seida AElgendy MY, Abdelsalam M, Moustafa M, Kenawy AM and Seida A
Caligus elongatus and Photobacterium damsela subsp piscicida are pathogens of serious infections in European seabass, Dicentrarchus labrax. In this study, both agents were concomitantly isolated from moribund broodstock European seabass cultured within the hatchery unit at El-Max Research Station (NIOF), Alexandria governorate, Egypt. Externally, fish were heavily infested with Caligus elongatus ectoparasitic copepods. The overall prevalence, mean intensity and mean abundance of C. elongatus on examined fish were 92.3%, 23.3 and 21.5; respectively. Majority of samples noticed sever haemorrhages on the external body surface and fins. Internally, moribund fish showed characteristic whitish nodules and extensive adhesions of visceral organs. 88.46% of investigated fish were concurrently found to be infected with P. damsela subsp piscicida. No other bacterial species were detected. P. dam.. View More»
DOI:
10.4172/2155-9546.1000346