Lehrstuhl für Tierphysiologie , University of Bayreuth , 95440, Bayreuth, Germany.
J Comp Physiol A Neuroethol Sens Neural Behav Physiol. 2023 Sep;209(5):827-837. doi: 10.1007/s00359-023-01658-2. Epub 2023 Jul 23.
A very quick decision enables hunting archerfish to secure downed prey even when they are heavily outnumbered by competing other surface-feeding fish. Based exclusively on information that is taken briefly after the onset of prey motion, the fish select a rapid C-start that turns them right towards the later point of catch. Moreover, the C-start, and not later fin strokes, already lends the fish the speed needed to arrive at just the right time. The archerfish predictive C-starts are kinematically not distinguishable from escape C-starts made by the same individual and are among the fastest C-starts known in teleost fish. The start decisions allow the fish-for ballistically falling prey-to respond accurately to any combination of the initial variables of prey movement and for any position and orientation of the responding fish. The start decisions do not show a speed-accuracy tradeoff and their accuracy is buffered against substantial changes of environmental parameters. Here, I introduce key aspects of this high-speed decision that combines speed, complexity, and precision in an unusual way.
快速决策使射水鱼即使在面对大量竞争的其他水面觅食鱼类时，也能确保捕获到落下的猎物。鱼类仅根据猎物运动开始后短暂获取的信息，选择快速的 C 型启动，使它们向稍后的捕获点右转。此外，C 型启动而不是稍后的鳍划动，已经赋予了鱼类到达正确时间所需的速度。射水鱼的预测 C 型启动在运动学上与个体做出的逃避 C 型启动无法区分，并且是硬骨鱼类中最快的 C 型启动之一。启动决策使鱼类能够对猎物运动的初始变量的任何组合以及对反应鱼的任何位置和方向做出准确的反应。启动决策并没有表现出速度-准确性的权衡，而且它们的准确性对环境参数的大量变化具有缓冲作用。在这里，我将介绍这种高速决策的关键方面，它以一种不寻常的方式将速度、复杂性和精度结合在一起。
