First report of Edwardsiellosis in cage-cultured sharpsnout sea bream, Diplodus puntazzo from the Mediterranean

BMC Veterinary Research

Maria Smyrli¹  Nancy Dourala²  Constantina Kokkari¹  Pantelis Katharios¹ 

[1]Institute of Marine Biology, Biotechnology and Aquaculture, Hellenic Centre for Marine Research, Former American Base of Gournes, Heraklion 71003, Crete, Greece

[2]Selonda Aquaculture, Navarhou Nikodimou 30, Athens, 105 56, Greece

关键词: Fish;    Aquaculture;    Bacterial disease;    Edwardsiella;   

Others  :  1223807
DOI  :  10.1186/s12917-015-0482-x

 received in 2015-02-26, accepted in 2015-07-14,  发布年份 2015

【 摘 要 】

Background

Edwardsiella tarda, is a serious bacterial pathogen affecting a broad range of aquaculture fish species. The bacterium has also been reported as a human pathogen, however recent studies have dissociated the fish pathogenic Edwardsiella from those isolated from humans by placing them in a new species, E. piscicida. Here we report the first case of Edwardsiellosis in cultured sharpsnout sea breams, Diplodus puntazzo in Greece.

Case presentation

The disease has affected cultured sharpsnout sea breams of a commercial fish farm in a single location in East Greece. Two populations of sharpsnout sea breams stocked in two consecutive years in floating cages presented signs of disease which included nodules and abscesses in spleen and kidney, morbidity and cumulative mortality reaching 5.3 %. Using microbiological, biochemical and molecular tools we have identified Edwardsiella sp. as the main aetiological factor of the disease. Following phylogenetic analysis the bacterial isolates are grouped with the newly described Edwardsiella piscicida species.

Conclusions

This is the first report of Edwardsiellosis in this species but most importantly in sea cage-cultured fish in the Mediterranean which may pose a serious threat for aquaculture fish species in this region.

【 授权许可】

   
2015 Katharios et al.

【 图 表 】

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