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Lethal and sublethal effects of the anti-sea lice formulation Salmosan® on the Pacific spot prawn (Pandalus platyceros)
Journal of the World Aquaculture Society ( IF 2.8 ) Pub Date : 2021-07-18 , DOI: 10.1111/jwas.12834
Kate Mill 1 , Christopher J. Kennedy 1
Affiliation  

The effects of the aquaculture chemotherapeutant Salmosan® (active ingredient [a.i.]: azamethiphos) were examined in Pacific spot prawns (Pandalus platyceros) at three temperatures (5, 11, and 17°C). Post-molt prawns were more sensitive to Salmosan® than intermolt prawns; repeated (3x) 1-hr LC50 values for post-molt prawns ranged from 17 (9.3–31 95% confident intervals) to 40 (25–63) μg/L a.i. while intermolt prawns survived 3 × 1-hr exposures up to 100 μg/L a.i. Using LC50 values, Salmosan® was approximately 2.4 times more toxic at 17 versus 5°C. Temperature significantly altered chemosensory and locomotory behaviors in intermolt prawns with the highest activity at the intermediate temperature. Significant decreases in antennule flicking (84 and 104% over controls) were seen at 17°C after 3 × 1-hr pulse exposures to 50 and 100 μg/L a.i., respectively. Temperature, but not Salmosan®, affected molting success: at 17°C significantly lower survival was seen during ecdysis (60% of those at 5°C) and at 5°C, molt time was longer (41 ± 3 days) compared to 11°C (34 ± 4 days) or 17°C (21 ± 4 days). Life stage (molt status) and environmental parameters (temperature) alter the effects of Salmosan® to non-target spot prawns.

中文翻译:

抗海虱制剂 Salmosan® 对太平洋斑虾 (Pandalus platyceros) 的致死和亚致死作用

研究了水产养殖化学治疗剂 Salmosan®(活性成分 [ai]:氮杂甲硫磷)对太平洋斑虾(Pandalus platyceros)的影响) 在三个温度(5、11 和 17°C)下。蜕皮后的对虾对 Salmosan® 的敏感性高于蜕皮对虾;蜕皮后虾的重复 (3x) 1 小时 LC50 值范围从 17(9.3–31 95% 置信区间)到 40 (25–63) μg/L ai,而蜕皮对虾在 3 × 1 小时暴露于 100 μg/L ai 使用 LC50 值,Salmosan® 在 17 与 5°C 下的毒性大约是 5°C 的 2.4 倍。温度显着改变了在中间温度下具有最高活性的互皮虾的化学感应和运动行为。分别在 50 和 100 μg/L ai 下 3 × 1 小时脉冲暴露后,在 17°C 下观察到触角轻弹的显着减少(比对照高 84% 和 104%)。温度,但不是 Salmosan®,影响蜕皮成功:在 17°C 时,蜕皮期间的存活率显着降低(5°C 时的 60%)和 5°C,与 11°C(34 ± 4 天)或 17°C(21 ± 4 天)相比,蜕皮时间更长(41 ± 3 天)。生命阶段(蜕皮状态)和环境参数(温度)会改变 Salmosan® 对非目标斑虾的影响。
更新日期:2021-07-18
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