Summary details of the experiments, planned comparisons and results to test the effect of interspecific competition and translocation procedures on the urchins, and the effect of intra- and interspecific competition and the tagging procedure on abalone behaviour, movement and percentage resighted t

0U, 18U: 0× ambient density of urchins and 1× ambient density of urchins and 0A, 25A, 50A: 0× ambient density of abalone, 1× ambient density of abalone and 2× ambient density of abalone. Treatment codes are: T1 = 1U untagged, unmanipulated in plots at the Lanterns, T2 = 1U tagged, placed back into the same positions and plots at the Lanterns, T3 = 1U tagged, random positions, same plots at the Lanterns, T4 = 1U tagged, placed randomly into new plots at the Lanterns, T5 = 1U tagged, placed randomly into new plots at Magistrates Point. 1Ano tag  = A untagged in plots at Magistrates Point.

0U、18U组分别对应0倍环境海胆密度、1倍环境海胆密度；0A、25A、50A组分别对应0倍环境鲍鱼密度、1倍环境鲍鱼密度、2倍环境鲍鱼密度。实验处理代码定义如下：T1=1U：未标记、未施加人工干预的海胆个体，安置于Lanterns样地内；T2=1U：标记后的海胆个体，放回Lanterns样地内的原捕获位置；T3=1U：标记后的海胆个体，随机放置于Lanterns样地内的非原位置；T4=1U：标记后的海胆个体，随机安置于Lanterns样地内的新样地中；T5=1U：标记后的海胆个体，随机安置于Magistrates Point的新样地中；1A（无标记组）：未标记的鲍鱼个体，安置于Magistrates Point样地内。