... of environmental factors. However, experimental data on how otoliths could adapt are scarce. This study explores the relationship between environmental structural complexity and otolith morphology, and its effects on auditory and vestibular functions in Nile tilapia (Oreochromis niloticus). Using a controlled...

... of equilibrium (LOE) during a critical thermal maximum (CT max) protocol. Two species were studied, Nile tilapia (Oreochromis niloticus) and pacu (Piaractus mesopotamicus). Each fish underwent an incremental swim test to determine gait transition speed (U GT), where it first engaged the unsteady anaerobic...

... such as fishes. To test this linear threshold shift hypothesis(LINTS) in fishes, we examined the effects of increased ambient sound on hearing of two species differing in hearing capabilities: goldfish(Carassius auratus ; a hearing specialist) and tilapia(Oreochromis niloticus ; a hearing generalist). Fish were...

... in Oreochromis niloticus while feeding on whole and finely crushed Tetramin flakes The time a mucus strand or aggregate stayed in the field of view was 1.0±1.0 s (mean ± S.D., range 0.2–4.9 s, N =60). The mucus often remained in view during one or more pumps or reversals, before exiting from view towards...

... fibres from O. andersonii which were homozygous for either LC1 f2 * or LC1 f1 * were 5.3 and 3.3, respectively, compared with 3.8 when both alleles were present. Crosses between Oreochromis niloticus and O. andersonii produced F1 hybrids which were heterozygous for either LC1 n /LC1 f1 * or LC1 n /LC1 f2...