Effect of stocking densities on the growth performance, cannibalism and survival of Asian seabass Lates calcarifer (Bloch, 1790) fry in different nursery rearing system

Abstract

The Asian seabass Lates calcarifer mostly familiar as barramundi or seabass is a commercially important species. Asian seabass is naturally distributed in the Indo-west Pacific region and cultured from the Persian Gulf, Arabian Gulf, south-east Asia and Australia (FAO, 2020). Asian seabass is extremely carnivorous and can tolerate high salinity variations (Rimmer and Russell, 1998). High fecundity, captive breeding and rapid growth rate make this species a suitable candidate for aquaculture (de Venkatachalam et al., 2018). The ability to tolerate crowding, high turbidity, varying salinities and temperature makes it a relatively hardy species (Boonyaratpalin, 1997;Yue

Effect of stocking density and tank colour on nursery growth performance, cannibalism and survival of the Asian seabass Lates calcarifer (Bloch, 1790) in a recirculating aquaculture system

“…Eventually, the survival of the fish in the black tanks had been lower than that of in the white tanks. Therefore, the lower FCR (higher feed efficiency) was observed in the black tanks might have resulted from the lower SR. Higher fish stocking density resulted in higher FCR in the present experiment was consistent with Khan et al (2021) for the Asian seabass juveniles reared in a RAS and Philipose et al (2010) for the Asian seabass after 45 days of nursery culture in indoor cement tanks.…”

“…sistent withKhan et al (2021) for the Asian seabass juveniles reared in a RAS andPhilipose et al (2010) for the Asian seabass after 45 days of nursery culture in indoor cement tanks.AlthoughFerosekhan et al (2020) emphasised population homogeneity in carnivorous fish, the CV of length and weight in the present study indicates that seabass juveniles exhibited heterogeneous growth after the 45-day culture period, which might be due to the fierce food competition as a predatory fish. Heterogeneous growth was also found in a recent study byKhan et al (2021) on Asian seabass juveniles reared in the RAS.…”

Growth performance and survivability of the Asian seabass Lates calcarifer (Bloch, 1790) reared under hyper-saline, hypo-saline and freshwater environments in a closed aquaculture system

“…Asian seabass Lates calcarifer (Bloch 1790) is commonly known as "Barramundi" or "giant sea perch" or "Asian seabass" throughout the world. Asian seabass is one of the most suitable aquaculture species due to its high tolerance to broad environmental conditions, delicately flavoured tasty, nutritious meat, and fast growth rate (Haque et al, 2021;Khan et al, 2021;Hassan et al, 2021a). Asian seabass can be reached to 1.5 to 3.0 kg in a year when its environmental conditions are optimum, and the maximum weight has been recorded about 60 kg .…”

Effects of stocking density and rearing factors on aggressive behaviour and cannibalism in the Pacific bluefin tuna Thunnus orientalis (Temminck & Schlegel) larvae

“…This phenomenon is accompanied by aggressive behaviour as a precursor and is affected by the rearing environment. For example: in Koi carp (Cyprinus carpio) and Asian seabass (Lates calcarifer) cannibalism is promoted by high stocking density (Damme et al 1989;Khan et al 2021) while differences in sh size promotes it in the orange-spotted grouper (Epinephelus coioides), (Hseu 2002). In yellowtails (Seriola quinquevadiata) and greater amberjack (Seriola dumerili), differences in sh size and starvation increased the frequency of aggressive behaviour, but a higher stocking density decreased it (Sakakura and Tsukamoto 1998;Miki et al 2011).…”