TY - JOUR
T1 - The influence of temperature in sea urchin embryo toxicity of crude and bunker oils alone and mixed with dispersant
AU - Demiguel-Jiménez, Laura
AU - Bilbao, Dennis
AU - Prieto, Ailette
AU - Reinardy, Helena C.
AU - Lekube, Xabier
AU - Izagirre, Urtzi
AU - Marigómez, Ionan
N1 - © 2023 The Author(s). Published by Elsevier Ltd.
Funding Information:
The authors would like to gratefully acknowledge financial support from the European Union's Horizon 2020 research and innovation program EU H2020-BG-2005-2 under grant agreement No 679266 (project GRACE), from the Spanish Ministry of Education, Culture and Sport through pre-doctoral fellowship FPU15/05517, and from the Basque Government through Consolidated Research Group GIC IT1302-19 & IT1743-22. The authors acknowledge Total Spain for kindly providing the dispersant.
PY - 2023/4/1
Y1 - 2023/4/1
N2 - This investigation deals with how temperature influences oil toxicity, alone or combined with dispersant (D). Larval lengthening, abnormalities, developmental disruption, and genotoxicity were determined in sea urchin embryos for assessing toxicity of low-energy water accommodated fractions (LEWAF) of three oils (NNA crude oil, marine gas oil –MGO-, and IFO 180 fuel oil) produced at 5–25 °C. PAH levels were similar amongst LEWAFs but PAH profiles varied with oil and production temperature. The sum of PAHs was higher in oil-dispersant LEWAFs than in oil LEWAFs, most remarkably at low production temperatures in the cases of NNA and MGO. Genotoxicity, enhanced after dispersant application, varied depending on the LEWAF production temperature in a different way for each oil. Impaired lengthening, abnormalities and developmental disruption were recorded, the severity of the effects varying with oil, dispersant application and LEWAF production temperature. Toxicity, only partially attributed to individual PAHs, was higher at lower LEWAF production temperatures
AB - This investigation deals with how temperature influences oil toxicity, alone or combined with dispersant (D). Larval lengthening, abnormalities, developmental disruption, and genotoxicity were determined in sea urchin embryos for assessing toxicity of low-energy water accommodated fractions (LEWAF) of three oils (NNA crude oil, marine gas oil –MGO-, and IFO 180 fuel oil) produced at 5–25 °C. PAH levels were similar amongst LEWAFs but PAH profiles varied with oil and production temperature. The sum of PAHs was higher in oil-dispersant LEWAFs than in oil LEWAFs, most remarkably at low production temperatures in the cases of NNA and MGO. Genotoxicity, enhanced after dispersant application, varied depending on the LEWAF production temperature in a different way for each oil. Impaired lengthening, abnormalities and developmental disruption were recorded, the severity of the effects varying with oil, dispersant application and LEWAF production temperature. Toxicity, only partially attributed to individual PAHs, was higher at lower LEWAF production temperatures
KW - Dispersant
KW - Oil
KW - PAH mixtures
KW - Sea urchin embryo
KW - Temperature
KW - Toxicity
UR - https://www.mendeley.com/catalogue/d6b10560-1c28-3d6e-bb61-e378d20e90e6/
U2 - 10.1016/j.marpolbul.2023.114786
DO - 10.1016/j.marpolbul.2023.114786
M3 - Article
C2 - 36893648
SN - 0025-326X
VL - 189
SP - 114786
JO - Marine Pollution Bulletin
JF - Marine Pollution Bulletin
M1 - 114786
ER -