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Shelter colour preference of the postlarvae of the giant freshwater prawn Macrobrachium rosenbergii
(Springer Verlag, 2017)
The addition of artificial shelters of various materials has been used in Macrobrachium rosenbergii tanks and ponds as a means of increasing productivity. The present study investigated the shelter colour preference of M. ...
Optimum low salinity to reduce cannibalism and improve survival of the larvae of freshwater African catfish Clarias gariepinus
(Springer Verlag, 2017)
The freshwater African catfish Clarias gariepinus is carnivorous and cannibalistic even during the larval and juvenile stages and this behavior causes economic losses in aquaculture. This study examined for the first time ...
Effect of colored light regimes on the stress response and RNA/DNA ratio of juvenile red sea bream, Pagrus major
(Borneo Marine Research Institute, Universiti Malaysia Sabah, 2017)
We hypothesized that fish with red-sensitive retina would be stressed by red light and thus inhibited in somatic growth. Red sea bream (Pagrus major) juveniles (total length =3 cm) with red-sensitive retina were chosen to ...
Colour discrimination in dim light by the larvae of the African catfish Clarias gariepinus
(Springer, 2017)
Many demersal fish species undergo vertical shifts in habitats during ontogeny especially after larval metamorphosis. The visual spectral sensitivity shifts with the habitat, indicating a change in colour vision. Colour ...
Colour preference and colour vision of the larvae of the giant freshwater prawn Macrobrachium rosenbergii
(Elsevier, 2016)
This paper reports on the innate colour preference and colour vision in the hatchery-reared larvae (10–16 days old, stages IV–VIII) of the giant freshwater prawn Macrobrachium rosenbergii (De Man) based on their response ...
Sensory systems and feeding behaviour of the giant freshwater prawn, Macrobrachium rosenbergii, and the marine whiteleg shrimp, Litopenaeus vannamei
(Borneo Marine Research Institute, Universiti Malaysia Sabah, 2017)
Information on the sensory basis of shrimp feeding provides the means for assessment of the effectiveness of food items in terms of smell, taste, size, and colour. This chapter summarizes information about the sensory basis ...
Limit of colour vision in dim light in larvae of the giant freshwater prawn Macrobrachium rosenbergii
(Springer Verlag, 2018)
Colour vision depends on sufficient ambient light and becomes ineffective at a particular low light intensity. It is not known how decapod crustaceans see colour in dim light. In the present study we investigated the colour ...
Early appearance of the retinal tapetum, cones, and rods in the larvae of the African catfish Clarias gariepinus
(Springer Verlag, 2016)
In the retina of the African catfish Clarias gariepinus, the pigment epithelium and the tapetum were formed in newly hatched larvae, the cones developed within 2 days, and the rods within 3 days after hatching. The retinal ...
Low ph water impairs the tactile sense of the postlarvae of the giant freshwater prawn Macrobrachium rosenbergii
(Penerbit Universiti Sains Malaysia, 2018)
The effect of low pH on the tactile sense of Macrobrachium rosenbergii postlarvae was determined in the laboratory by means of two behavioural assays: shelter (netting) occupancy and jumping response to touch stimuli (taps) ...
Low pH affects survival, growth, size distribution, and carapace quality of the postlarvae and early juveniles of the freshwater prawn Macrobrachium rosenbergii de Man
(Springer Verlag, 2015)
Acidification of rain water caused by air pollutants is now recognized as a serious threat to aquatic ecosystems. We examined the effects of low pH (control pH 7.5, pH 6, pH 5, pH 4) on the survival, growth, and shell ...