Both techniques are used to capture live fish for aquaria and for restaurants in Hong Kong.
The guppies were maintained under a 12 h light: 12 h dark lighting regime in mixed-sex groups (1∶5 male to female ratio) with about 30 fish per aquaria (45×45×120 cm), and fed on a diet of flakes (Aquarian®) and frozen bloodworm.
Six fish per aquaria (12/treatment) were sampled, weighed, and archived for molecular analysis on days 5, 9, and 14.
However, there was the highest (P < 0.001) mortality in experimental group M5 and amount of fish in aquaria could also affect fish growth.
After 1 and 6 weeks of Zn post-exposure, all fish from two aquaria from each group were collected, counted, and weighed.
The water was recirculated daily to avoid algal growth and accumulation of planktons that might interfere with the nutritional status of the fish in all aquaria during the period of experimentation.
They are also a popular fish for public aquaria, and zoos.
First, following introduction of the fish in the aquaria, the status of dominance (i.e., subordinate or dominant) of individuals within each salmon pair was evaluated.
In this experiment, the authors observed wild-caught fish in 16 aquaria during three subsequent days.
The larger trial consisted of fish in two aquaria each of control, 0.5 ppm nC60, and 100 μM hydrogen peroxide (positive control for oxidative damage) and fish in one aquarium of 1 ppm nC60.
For aquaria with three fish, the fish were physically separated from one another with glass dividers.
