Dispersant application increases adverse long-term effects of oil on shrimp larvae (Pandalus borealis) after a six hour exposure

MARINE POLLUTION BULLETIN

卷:151

Article

Keitel-Groner, Frederike¹  Arnberg, Maj^1,2  Bechmann, Renee K.¹  Lyng, Emily¹  Baussant, Thierry¹ 

[1] NORCE Norwegian Res Ctr, Mekjarvik 12, N-4072 Randaberg, Norway

[2] Akvaplan Niva, Havnegata 9, N-7010 Trondheim, Norway

关键词: Oil spill;    Zooplankton;    Survival;    Feeding;    Growth;    Development;   

DOI  :  10.1016/j.marpolbul.2020.110892

来源: Elsevier

【 摘 要 】

The application of chemical dispersants is one option of oil spill response (OSR). Here, Northern shrimp (Pandalus borealis) larvae were experimentally exposed for short periods (6 h and 1 h) to a realistic concentration of chemically dispersed oil (CDO) (similar to 10 mg L-1 THC), mechanically dispersed oil (MDO) (similar to 7 mg L-1 THC), and dispersant only (D). A control (C) with seawater served as reference. Short-term effects on survival and feeding were examined right after exposure and longer-term consequences on survival, feeding, growth and development following 30 days of recovery. Both exposure durations provoked long lasting effects on larval fitness, with 1 h exposure leading to minor effects on most of the selected endpoints. The 6 h exposure affected all endpoints with more adverse impacts after exposure to CDO. This study provides important data for assessing the best OSR option relevant to NEBA (Net Environmental Benefit Analysis).

【 授权许可】

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