Outbreak of mortality among cage-reared cobia (Rachycentron canadum) associated with parasitism.

A Case Study on the Mortality of Cobia (Rachycentron canadum) Cultured in Traditional Cages.

The mass mortality of cobia (Rachycentron canadum) within 2-3 days was reported by 3 private farms in Bukit Tambun, Pulau Pinang, in February and March 2007. Only cobia with body weights of 3-4 kg were affected. Most diseased cobia swam on the surface and displayed flashing behaviour. All samples were positive for viral nervous necrosis (VNN) with low to medium levels of infection. Infestations...

First record of Neobenedenia melleni (Monogenea: Capsalidae) in sea-farmed cobia (Rachycentron canadum) in Brazil Primeiro registro de Neobenedenia melleni (Monogenea: Capsalidae) em cultivo de bijupirás (Rachycentron canadum) no Brasil

Neobenedenia melleni (MacCallum, 1927) (Monogenea) is a widespread pathogen in marine teleost cultures all over the world. The present paper reports this parasite species in farmed cobia (Rachycentron canadum) in Brazil, for the first time. Some comments on preventive actions for avoiding the disease are made.

Elevated oxygen uptake and high rates of nitrogen excretion in early life stages of the cobia Rachycentron canadum (L.), a fast-growing subtropical fish

Physiological energetics of cobia Rachycentron canadum were quantified for 18 to 82 days posthatch (dph) hatchery-reared juveniles to better understand energy transformation and its implications in growth and survival. Mean oxygen consumption rates (MO2 ; mg O2 h ) of fish fed ad libitum and fish that were starved significantly increased with increasing wet mass (M; g), MO2 1⁄4 1 4291M 8119 and...

Physiological roles of fatty acyl desaturases and elongases in 1 marine fish : Characterisation of cDNAs of fatty acyl Δ 6 2 desaturase and elovl 5 elongase of cobia ( Rachycentron canadum ) 3 4

Cardio-respiratory function during exercise in the cobia, Rachycentron canadum: The impact of crude oil exposure.

Aerobic exercise capacity is dependent on the cardiorespiratory system's ability to supply oxygen at a rate that meets energetic demands. In teleost fish crude oil exposure, with the associated polycyclic aromatic hydrocarbons (PAH's), reduces exercise performance and this has been hypothesized to be due to compromised cardiovascular function. In this study, we test this hypothesis by simultane...