This study investigated effects of sea lice pharmaceuticals on egg-bearing deep-water shrimp (Pandalus borealis). Both mortality and sub-lethal effects (behavior, embryo development, and reproductive output) were studied for each of three pharmaceuticals alone and in different sequential combinations. The most severe effect was observed for deltamethrin where 2 h exposure to 330 times diluted treatment dose (alone and in sequential application with hydrogen peroxide and azamethiphos) induced almost 100% mortality within a few days after exposure. Similar effects were not observed for hydrogen peroxide or azamethiphos. However, sequential treatment of hydrogen peroxide and azamethiphos (2 h exposure to each pharmaceutical; 500 times dilution) resulted in >40% mortality during the first week following treatment. No sub-lethal effects or loss of eggs in female shrimp could be related to exposure to the bath treatments. Future studies should investigate potential sub-lethal effects at exposure concentrations close to the no-effect concentration.

这项研究调查了海虱药物对产卵深水虾（Pandalus borealis）的影响。分别对三种药物分别以不同的顺序组合研究了死亡率和亚致死作用（行为，胚胎发育和生殖输出）。对于溴氰菊酯，观察到最严重的影响，其中暴露于330倍稀释剂量（单独使用以及与过氧化氢和氮杂甲磷依次应用）中暴露2 h，在暴露后几天内几乎导致100％的死亡率。对于过氧化氢或氮杂甲磷没有观察到类似的效果。但是，过氧化氢和氮杂甲磷的顺序处理（每种药物暴露2小时；稀释500倍）导致在治疗后的第一周内死亡率> 40％。母虾对虾没有亚致死作用或卵损失与暴露于沐浴处理无关。