Dispersant application increases adverse long-term effects of oil on shrimp larvae (Pandalus borealis) after a six hour exposure.
Mar Pollut Bull
; 151: 110892, 2020 Feb.
Article
in En
| MEDLINE
| ID: mdl-32056658
ABSTRACT
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 (6â¯h and 1â¯h) to a realistic concentration of chemically dispersed oil (CDO) (~10â¯mgâ¯L-1 THC), mechanically dispersed oil (MDO) (~7â¯mgâ¯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 30â¯days of recovery. Both exposure durations provoked long lasting effects on larval fitness, with 1â¯h exposure leading to minor effects on most of the selected endpoints. The 6â¯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).
Key words
Full text:
1
Database:
MEDLINE
Main subject:
Water Pollutants, Chemical
/
Petroleum
/
Petroleum Pollution
/
Pandalidae
Language:
En
Journal:
Mar Pollut Bull
Year:
2020
Type:
Article