当前位置: X-MOL 学术Aquat. Toxicol. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Developmental and reproductive effects in grass shrimp (Palaemon pugio) following acute larval exposure to a thin oil sheen and ultraviolet light
Aquatic Toxicology ( IF 4.5 ) Pub Date : 2020-10-06 , DOI: 10.1016/j.aquatox.2020.105651
Peter B. Key , Katy W. Chung , J. Blaine West , Paul L. Pennington , Marie E. DeLorenzo

Many early stages of estuarine species congregate at the surface or in the upper mixing layer making them prone to UV light exposure and oil sheens. Laboratory testing was used to assess UV-oil sheen interactions with grass shrimp (Palaemon pugio). Newly hatched grass shrimp larvae were exposed to a 1-μm thick oil sheen for 24 h with or without an 8-h pulse of UV light. Grass shrimp were then transferred to clean seawater and non-UV conditions to measure development, growth, and reproductive fitness. Minimal toxicity was observed after the initial exposure but larval development was significantly delayed in shrimp exposed to the UV enhanced sheen. After reaching sexual maturity, shrimp were paired to evaluate effects on reproduction. Shrimp initially exposed to the UV enhanced sheen as larvae had a significant reduction in fecundity compared to controls. This demonstrates the importance of examining interactions between UV light and oil since negative effects to aquatic organisms may be underestimated if based on standard laboratory fluorescent lighting. Acute exposures of early life stages to thin oil sheens and UV light may lead to long-term impacts to individuals and ultimately to grass shrimp populations.



中文翻译:

急性幼虫暴露在稀油光泽和紫外线下对草虾(Palaemon pugio)的发育和生殖作用。

河口物种的许多早期阶段聚集在表面或上层混合层中,使它们易于受到紫外线照射和油污。实验室测试用于评估与草虾的紫外线-油光相互作用(Palaemon pugio)。将刚孵化的草虾幼虫暴露于1-μm厚的油光泽中,持续24小时,无论是否照射8小时的紫外线。然后将草虾转移到干净的海水和非紫外线条件下,以测量发育,生长和生殖健康。初次暴露后观察到的毒性极小,但暴露于紫外线增强光泽的虾的幼体发育明显延迟。达到性成熟后,将虾配对以评估对繁殖的影响。虾最初暴露于紫外线增强的光泽中,因为与对照相比,幼虫的繁殖力显着降低。这证明了检查紫外线与油之间的相互作用的重要性,因为如果基于标准的实验室荧光灯照明,可能会低估对水生生物的负面影响。

更新日期:2020-10-11
down
wechat
bug