| gross and histopathological characteristics of two lipomas and a neurofibrosarcoma detected in aquacultured southern bluefin tuna, thunnus maccoyii (castelnau), in south australia. | three visible lesions were examined from two specimens of southern bluefin tuna. the lesions were examined grossly and two were identified as lipomas, the third bore similarities to a schwannoma. histopathology confirmed that two consisted of mature adipocytes consistent with a diagnosis of lipoma. the third lesion consisted of spindle cells in antoni a and b patterns and was tentatively diagnosed as a malignant schwannoma. immunohistochemistry identified both s100 and glial fibrillary acid prot ... | 2008 | 18353015 |
| case-control study of epidemic mortality and cardicola forsteri-associated disease in farmed southern bluefin tuna (thunnus maccoyii) of south australia. | cardicola forsteri is a blood fluke that is highly prevalent among cultured southern bluefin tuna (sbt), thunnus maccoyii, in south australia. the role of c forsteri in annual sbt mortality outbreaks, which peak 6 to 12 weeks poststocking, is unknown. the objective of this study was to identify lesions unique to cultured sbt that died during a mortality event in 2009 and to determine the significance of c forsteri-associated lesions. cultured sbt were sampled from 4 pontoons of a single site in ... | 2010 | 21084722 |
| the life cycle of cardicola forsteri (trematoda: aporocotylidae), a pathogen of ranched southern bluefin tuna, thunnus maccoyi. | aporocotylids (fish blood flukes) are emerging as pathogens of fishes in both marine and freshwater aquaculture. efforts to control these parasites are hampered by a lack of life cycle information. here we report on the life cycle of cardicola forsteri, which is considered a significant pathogen in southern bluefin tuna, thunnus maccoyi, ranched in south australia. we surveyed polychaetes, bivalves and gastropods from sites close to tuna pontoons. infections consistent with the aporocotylidae we ... | 2011 | 21569775 |
| an epizootic of caligus chiastos on farmed southern bluefin tuna thunnus maccoyii off south australia. | in some years, large numbers of caligus chiastos have been observed on the external surfaces of southern bluefin tuna, particularly on the head and eyes, in some sea cages in spencer gulf, australia. as no epidemiological data were available, we monitored sea lice on tuna (n = 130) in 4 research cages sampled at 6 wk intervals during the 2005 farming season. no lice were observed on a sample of 10 wild-caught tuna when the cohort was transferred to cages in early april. by late may more than hal ... | 2008 | 18429442 |
| test of an antifouling treatment on tuna fish-cages in boston bay, port lincoln, south australia. | a test of the antifouling properties of wattyl netclear was conducted on fish farms containing southern bluefin tuna (thunnus maccoyii) during a 6-month period (february-july 2002). wattyl netclear is a water-based synthetic latex-based coating where the active antifouling agent is a mixture of two isothiazolinones likely to affect both biochemical conditioning and bacterial colonisation. the development of fouling was monitored using underwater stereo-photogrammetry on 3 treated and 3 untreated ... | 2006 | 17290865 |