Pregled bibliografske jedinice broj: 266871
Parasite communities in the wild and reared bluefin tuna (Thunnus thynnus) in the Adriatic Sea
Parasite communities in the wild and reared bluefin tuna (Thunnus thynnus) in the Adriatic Sea // 5th International Symposium on Aquatic Animal Health : program and abstracts
San Francisco (CA), Sjedinjene Američke Države: American Fisheries Society, Fish Health Section, 2006. (pozvano predavanje, međunarodna recenzija, neobjavljeni rad, znanstveni)
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Naslov
Parasite communities in the wild and reared bluefin tuna (Thunnus thynnus) in the Adriatic Sea
Autori
Mladineo, Ivona ; Žilić, Jelena ; Čanković, Milan
Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, neobjavljeni rad, znanstveni
Izvornik
5th International Symposium on Aquatic Animal Health : program and abstracts
/ - : American Fisheries Society, Fish Health Section, 2006
Skup
International Symposium on Aquatic Animal Health (5 ; 2006)
Mjesto i datum
San Francisco (CA), Sjedinjene Američke Države, 02.09.2006. - 06.09.2006
Vrsta sudjelovanja
Pozvano predavanje
Vrsta recenzije
Međunarodna recenzija
Ključne riječi
Adriatic Sea ; bluefin tuna ; parasites
Sažetak
During the three-year period parasitofauna of tuna was monitored at the entrance of fish in cages (wild tuna) and at the end of the rearing process at the “ harvest” (reared tuna) or during outbreaks of mortalities. Vast and divers parasitic groups were identified, never showing to be implicated in diseases outbreaks. Two new parasitic species, Ceratomyxa thunni (Ceratomyxidae, Myxozoa) and Microsporidia sp., are isolated and described for the first time in bluefin tuna. Trematodes are the most abundant and prevalent parasitic group in both wild and reared fish. Two species of monogeneans are regularly isolated: the capsalid Tristomella laevis and polypisthocotylean Hexostoma thynni, while digeneans stand as the most divers parasitic group comprising 6-10 different Didymozoid species. Nematodes are composed of Anisakis sp. third stage larvae and the camallanid Oncophora melanocephala and Cestoda of plerocercoids of Hepatoxylon trichiuri (Cestoda: Trypanorhyncha) and blastocysts of Eutetrarhynchus lineatus (Heteroacanthoidea, Trypanorchyncha). Pennella filosa (Pennellidae, Copepoda) was the only crustacean isolated. Comparing parasite communities of wild and reared fish, a sudden decrease in the number of parasites was observed in tuna after short time of rearing. This trend is unexpected because fish are daily fed with fresh baitfish that enables the propagation of parasitic developmental stages to tuna. The cause could be presumably related to the immunity burst through balanced food or to unfavorable abiotic condition for the parasites in the new environment.
Izvorni jezik
Engleski
Znanstvena područja
Veterinarska medicina
