Data from: Carry-over effects of environmental stressors influence the life performance of brown trout

Here, we focused on the carry-over effects of excessive sedimentation on the early life stages of brown trout in a multiphase experiment. First, we experimentally tested the influence of fine sediments (organic matter (OM) and inorganic sand, both <2.0 mm in diameter) on the metabolic rate (MO2), size, emergence, escape responses and survival of the relevant brown trout embryonic stage (egg, alevin or fry) in indoor experimental channels. Second, we mimicked the movements of parr to a more suitable habitat if available in natural rivers and transported parr to either their original or different treatments in outdoor experimental channels and remeasured their metabolic rate and size.

本研究在一项多阶段实验中，聚焦于过度沉积对褐鳟（brown trout）早期生活史阶段的遗留效应。其一，我们于室内实验水槽中开展实验，探究直径均小于2.0毫米的细沉积物（即有机质（OM）与无机沙粒）对褐鳟相关早期生命阶段（卵、仔鱼或幼鱼）的代谢率（MO2）、体长、出苗率、逃逸反应及存活率的影响。其二，我们模拟自然河流中稚鱼向适宜栖息地迁移的行为，在室外实验水槽中将稚鱼转移至原实验处理组或其他实验处理组，并重新测定其代谢率与体长。