Courtship and spawning behaviour of NT Mesocosm and NT Culture fish in a Full Competition Spawning experiment.

NT = wild-type coho salmon, Mesocosm = fish were raised from smolt in a mesocosm, Culture = fish were raised from smolt in standard culture conditions. Four fish of each sex and fish group were represented in one arena. Behaviour is averaged over four 5 min daily intervals starting at 9 am, 11 am, 1 pm, and 3 pm during the spawning trial.a,bindicates significant differences between fish groups, p

NT组为野生型银大马哈鱼（wild-type coho salmon）；Mesocosm组指将幼鲑（smolt）置于中型实验生态系统（mesocosm）中养殖的组别；Culture组指将幼鲑置于标准养殖条件下养殖的组别。每个试验池（arena）内包含各鱼组、各性别的4尾试验鱼。行为数据取产卵试验期间每日4个5分钟观测时段的平均值，各时段分别始于上午9时、11时、下午1时与3时。a、b表示不同鱼组间存在显著差异，p