And watched three-spined stickleback fish hunt water fleas, to the accompaniment of either whitenoise calibrated to match the noise level of speedboats or a silent track as a control.
并控制三刺鱼在跟快艇噪音程度相当的白噪声中，或者完全安静的环境之下，观察它们捕食水蚤的情况。
2
When the environment variations are high, the whitenoiselevel (coefficient of variation) increases to 35%, the stable fish population becomes spasmodic.
在环境变化较大时，白色噪音水平(变动系数)增加至35%，稳定型种群变为不稳定型。
3
When the whitenoiselevel was 50%, surplus production was high at high biomass.