Morphological differences among three wild populations of Siniperca kneri sampled from Guizhou Province

Effects of water temperature on swimming performance of Siniperca knerii Garman under the Yuanshui River cascade development

“…9 Meanwhile, in terms of ecology and predation, Siniperca knerii Garman prefers a flowingwater environment of rich dissolved oxygen level and has the habit of swimming against the current, often hunting for food by raiding and seizing the best spatial position of the habitat. 12,15 The induction velocity, which is the flow velocity threshold of most rheotaxis fish, determines the minimum flow velocity of its rheotaxis and provides a basic reference for the measurement of fish U crit and U opt . 8 In this study, it was found that both absolute induction velocity and relative induction velocity of Siniperca knerii Garman decreased with increasing temperature.…”

“…9 Its biology has been extensively studied in recent years in China, mainly focusing on morphology, age, growth, physiology, resource status, phylogeny, etc. [10][11][12][13] Few studies have comprehensively evaluated the swimming ability of juvenile fish Siniperca knerii Garman, and there are few reports on the status of the effect of environmental temperature changes on the swimming ability and metabolic function of wild Siniperca knerii Garman under cascade development. To investigate the effect of water temperature changes on the swimming ability of wild Siniperca knerii Garman under cascade development, the induction velocity, preferred velocity, maximum swimming speed, and oxygen consumption rate of wild fish at different water temperatures were measured using a self-circulating fish-locomotion testing water tank.…”