The feeding behaviour and growth rates of Asian seabass (Lates calcarifer Bloch, 1790) fry were studied using a new type demand (NTD) feeder. This system was equipped with programme to detect hunger in fish automatically dispense pellets. system could overcome hierarchy during feeding. Fish rearing experiments conducted compare the NTD feeder infrared light (ILD) automatic timer (AT) feede...

Epitheliocystis in leafy seadragon (Phycodurus eques), silver perch (Bidyanus bidyanus), and barramundi (Lates calcarifer), previously associated with chlamydial bacterial infection using ultrastructural analysis, was further investigated by using molecular and immunocytochemical methods. Morphologically, all three species showed epitheliocystis cysts in the gills, and barramundi also showed ly...

In Streptococcus iniae, lactate metabolism is dependent upon two proteins, lactate permease that mediates uptake and lactate oxidase, a flavin mononucleotide-dependent enzyme that catalyzes oxidation of alpha-hydroxyacids. A novel variant of the lactate oxidase gene, lctO, in Australian isolates of S. iniae from diseased barramundi was found during a diagnostic screen using LOX-1 and LOX-2 prim...

Identification of differentially expressed genes (DEGs) and regulated pathways in response to stressors using a whole-genome approach is critical to understanding the mechanisms underlying stress responses. We challenged Asian seabass with lipopolysaccharide (LPS), Vibrio harveyi, high salinity and fasting, and sequenced six cDNA libraries of intestine samples using Roche 454 RNA-seq. Over 1 mi...

BACKGROUND The Asian seabass (Lates calcarifer) is a protandrous hermaphrodite that typically matures as a male at approximately 2-4 years of age and then changes sex in subsequent years. Although several sexual maturation stages have been described histologically for both testis and ovary, the underlying gene expression profiles remain lacking. The development of a gene expression platform is ...

The age of whole otoliths from barramundi (Lates calcarifer) obtained the southern Gulf Carpentaria were estimated using Fourier transform near-infrared (FT-NIR) spectroscopy. Otoliths 1716 collected in 2006, 2009 and 2012–2015 used this study. Partial least-squares regression models (PLS-R) multiple linear (MLR) developed diffuse reflectance spectra was traditional sectioned otoliths. Calibrat...