| thermal death times of hafnia alvei cells in a model suspension and in artificially contaminated hot-smoked kahawai (arripis trutta). | in new zealand the product most frequently implicated in cases of scombroid poisoning is hot-smoked kahawai (arripis trutta). using a hafnia alvei strain, previously isolated from a portion of hot-smoked kahawai with a histamine level of 1,659.4 mg/kg, thermal death trials were carried out in a model suspension (0.1% peptone) at 54, 55, 56, 57, and 58 degrees c. from the linear regression line (r2 = 0.98) fitted to observed d values plotted against temperature, calculated d values for 54, 55, 56 ... | 1998 | 9713770 |
| application of the bigelow (z-value) model and histamine detection to determine the time and temperature required to eliminate morganella morganii from seafood. | in new zealand, the product most frequently implicated in cases of scombroid or histamine poisoning is the hot-smoked fish, kahawai (arripis trutta). a properly controlled heating step in the production of hot-smoked seafood could eliminate bacteria able to convert the amino acid histidine to histamine. in this study, we determined the core temperatures and times required during hot smoking of kahawai to eliminate histamine-forming bacteria and to ensure a final product that will not produce his ... | 2000 | 10678437 |
| elucidating the ecology of bucephalid parasites using a mutation scanning approach. | nucleotide variation in a portion of the mitochondrial cytochrome c oxidase subunit1 (cox1) gene from asexual stages of bucephalids of southern australian scallops (chlamys asperrima, chlamys bifrons and pecten fumatus) was investigated using a mutation scanning-sequencing approach. single-strand conformation polymorphism (sscp) analysis revealed three main profile types (a, b and c) for parasites isolated from scallops. sequence analysis revealed that samples represented by profiles b and c had ... | 2004 | 15051124 |
| method to measure the force to pull and to break pin bones of fish. | a texture measurement device was modified to measure the force required to pull pin bones from king salmon (oncorhynchus tshawytscha), snapper (pagrus auratus), and kahawai (arripis trutta). pulled bones were also subjected to tension to measure the breaking force. for all fish, the pulling force depended on the size of the fish, and on the length of the pin bone (p < 0.05). in general, larger fish required greater pulling force to remove pin bones. for example, fresh small salmon (about 1500 g ... | 2015 | 25604165 |
| schooling affects the feeding success of australian salmon (arripis trutta) when preying on mysid swarms (paramesopodopsis rufa). | when feeding on mysid swarms (paramesopodopsis rufa), juvenile australian salmon (arripis trutta) had higher rates of successful attacks when foraging in a group of six fish (55% total advances) than when foraging alone (39% total advances). six schooling fish had lower approach rates than solitary fish (25% and 37% of total advances, respectively). this result indicated that schooling fish were better at reducing the confusion effect of swarming prey, resulting in more efficient feeding. in lar ... | 2001 | 11438107 |
| evaluating the impact of predation by fish on the assemblage structure of fishes associated with seagrass (heterozostera tasmanica) (martens ex ascherson) den hartog, and unvegetated sand habitats. | the role of fish predation in structuring assemblages of fish over unvegetated sand and seagrass was examined using enclosure and exclusion cages to manipulate the abundance of predatory fish from november 1998 to january 1999. in our exclusion experiment, piscivorous fish were excluded from patches of unvegetated sand and seagrass to measure how they altered abundances of small fishes, i.e., fish <10 cm in length. habitats from which piscivorous fish were excluded contained more small fish than ... | 2000 | 11108849 |
| scombroid poisoning. a report of seven cases involving the western australian salmon, arripis truttaceus. | to present the clinical findings of scombroid poisoning due to ingestion of the western australian salmon, arripis truttaceus, occurring in two separate outbreaks involving seven patients. both outbreaks occurred in march and the fish had been caught in south australian waters. | 2013 | 1453998 |
| the influence of temperature on the fluorine and calcium composition of fish scales. | proton microprobe studies of the scales of the kahawai (arripis trutta) and the snapper (chrysophrys auratus) showed non-linear changes in the fluorine to calcium ratio that increase with increasing temperature, but both species showed a different temperature sensitivity. fluorine and calcium levels vary within years from summer to winter by up to 1000%, making fluorine and calcium levels good markers of seasonal events. | 1990 | 18620324 |
| capillary distribution and metabolic histochemistry of the lateral propulsive musculature of pelagic teleost fish. | metabolic and vascular adaptation of teleost lateral propulsive musculature to an active mode of life was investigated in four pelagic teleosts (mackerel, yellowtail scad, pilchard and australian salmon). histochemical profiles and capillarisation data of the red and white muscle were compared to those of less active demersal species. pelagic white muscle stained positively for the aerobic enzymes succinate dehydrogenase and nadh diaphorase, and had both subsarcolemmal and intermyofibrillar mito ... | 1979 | 159776 |