Sharks are generally taken in multispecies fisheries worldwide so in many cases it is logistically infeasible and cost prohibitive to assess the impact on all species caught. Risks of fishing impacts to the sustainability of shark species were assessed using a weight of evidence risk-based framework. Whiskery (Furgaleus macki), gummy (Mustelus antarcticus), dusky (Carcharhinus obscurus), and sandbar (C. plumbeus) sharks provide a good case study as they are the main (~80% of the catch) shark species taken in Western Australia (WA) and represent the range of life history strategies of other shark species typically caught. Based on the available lines of evidence for stock status (spatial and temporal time series of catch, effort, catch rates, size composition and population modelling), the 2015–16 risk level for the four species was scored as medium―i.e. it is unlikely (5–20% chance) that there is a high level of stock depletion. The status of each of the four species was scored as ‘acceptable’ with risk control measures in place, indicating that no additional restrictions are required.

鲨鱼通常在世界范围内的多物种渔业中捕捞，因此在许多情况下，评估对所有捕捞物种的影响在后勤上是不可行的，而且成本高昂。捕捞对鲨鱼物种可持续性产生影响的风险是使用基于证据风险权重的框架进行评估的。晶须（Furgaleus macki），软糖（Mustelus antarcticus），暗淡的（Carcharhinus obscurus）和沙洲（C. plumbeus）鲨鱼是一个很好的案例研究，因为它们是西澳大利亚州（WA）捕捞的主要鲨鱼种类（约占捕捞量的80％），并代表了通常捕捞的其他鲨鱼种类的生活史策略。根据可用的种群状况证据（渔获量，工作量，渔获量，种群组成和种群建模的时空时序），将这四种物种的2015-16年风险等级评定为中等，即不太可能（5-20​​％的机会）库存水平很高。采取适当的风险控制措施后，四个物种中每个物种的状态都被评为“可接受”，这表明不需要其他限制。