ERASMUS International Academic Research Symposium in Science, Engineering and Architecture, İzmir, Turkey, 5 - 06 April 2019, vol.1, no.1, pp.89-92
Pasteurellosis occurs in many countries from the time it was first iden- tified and caused significant economic losses in aquaculture. Etiological agent of Pastorellosis was firstly isolated from White Perch (Morone ame- ricanus) and streped bass (Morone saxatillis) from Chesapeake Bay, USA by Snieszko et al, 1964. After then it was isolated in many countries and different fish species (Ozturk and Altinok, 2014). Although the disease was called pseudotuberculosis due to the presence of many white nodules in the internal organs of the sick fish by Kubota et all., 1970, it is preferred that the disease is called Pastorellosis.
In Turkey, first outbreak of pastorellosis occurred in one of the gilthead sea bream (Sparus aurata) farm in Izmir Bay (Cagirgan, 1993). Second iso- lation was reported from cultured sea bass in North Aegean Coast (Candan, 1996). These two isolation was performed from cultured fishes. In 2000, third isolation was reported from wild marine fish, Mugil cephalus (Linna- eus, 1758) and Chelon labrosus (Linnaeus, 1758) in Gerence and Guul- bahce bay in Izmir (Tanrıkul and Çağirgan, 2001).
In this study, we detected a pastorellosis observed in wild fish 18 years after the first natural outbreak of wild fish and we have identified that the causative agent is Photobacterium damselae subs. piscicida in Izmir Ba- likliova Region.