Naslov
Diseases of farmed tuna (Thunnus thynnus) in the Mediterranean Sea

Autori
Mladineo, Ivona

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, ostalo

Izvornik
Abstract Book of XIX Convegnio Nazionale della Societa Italiana di Patologia Ittica / Marino Prearo - Siracusa : SIPI, 2013, 21-22

Skup
XIX Convegnio Nazionale della Societa italiana di patologia Ittica

Mjesto i datum
Siracuza, Italija, 14.11.2013. - 16.11.2013

Vrsta sudjelovanja
Pozvano predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Atlantic bluefin tuna; diseases; parasites; virus; bacterial pathogens

Sažetak
In general, a surprisingly small number of infective and noninfective diseases has been reported in a period of some 20- years of intensive bluefin tuna cage farming in the Word. This is another of tuna physiological particularities that among other, like partial endothermy, high metabolic rate and ability to expand and forage from tropical and subtropical through arctic waters, reflects in the amazing resistance to pathogens if maintained in proper zootechnological conditions. At the early beginnings however, most mortalities were connected to the sharp changes of environmental in respect to meteorological conditions (e.g., lightening, storm, heavy rains, or forest fires) or inappropriate zootechnical manipulations. If compared with other finfish species, tuna farming cycle in most parts of the Mediterranean lasts short period of time (around 3-6 months), where rarely a development of the diseases is plausible under the good zootechnology practice. First “diseases filter” is suggested to be the towing process of fish by a purse seiner from the fishing ground to the cages, when an initial part of the least resistant or mechanically damaged animals die in the transport, dismissing a potential media for the diseases outbreak. The second “filter” is the period after the transfer to the farm cages, lasting couple of weeks, which leaves only the fittest and presumably the most resistant fish for the farming. Only in Croatia the full sense of tuna rearing, unlike fattening present in other countries, takes place enabling us to explore bluefin health status over longer rearing periods. Very large number of potential pathogens and fascinating mechanisms of adult bluefin immunity offer an immense field for modelling of host-pathogen interactions.

Izvorni jezik
Engleski

Znanstvena područja
Veterinarska medicina

POVEZANOST RADA