The influence of temperature in sea urchin embryo toxicity of crude and bunker oils alone and mixed with dispersant

Laura DeMiguel-Jiménez; Dennis Bilbao; Ailette Prieto; Helena C Reinardy; Xabier Lekube; Urtzi Izagirre; Ionan Marigómez

doi:10.1016/j.marpolbul.2023.114786

The influence of temperature in sea urchin embryo toxicity of crude and bunker oils alone and mixed with dispersant

Mar Pollut Bull. 2023 Apr:189:114786. doi: 10.1016/j.marpolbul.2023.114786. Epub 2023 Mar 8.

Authors

Laura DeMiguel-Jiménez¹, Dennis Bilbao², Ailette Prieto², Helena C Reinardy³, Xabier Lekube¹, Urtzi Izagirre¹, Ionan Marigómez⁴

Affiliations

¹ BCTA Research Group, Department of Zoology and Animal Cell Biology, Faculty of Science and Technology, University of the Basque Country (UPV-EHU), Sarriena z/g, E-48940 Leioa, Bizkaia (Basque Country), Spain; BCTA Research Group, Research Centre for Experimental Marine Biology and Biotechnology (PiE-UPV/EHU), University of the Basque Country (UPV/EHU), Areatza z/g, 48620 Plentzia, Bizkaia (Basque Country), Spain.
² IBeA Research Group, Department of Analytical Chemistry, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Sarriena z/g, E-48940 Leioa, Bizkaia (Basque Country), Spain; BCTA Research Group, Research Centre for Experimental Marine Biology and Biotechnology (PiE-UPV/EHU), University of the Basque Country (UPV/EHU), Areatza z/g, 48620 Plentzia, Bizkaia (Basque Country), Spain.
³ Scottish Association for Marine Science (SAMS), Scottish Marine Institute, Dunbeg, Oban, Argyll, PA37 1QA Scotland, United Kingdom; Department of Arctic Technology, The University Centre in Svalbard (UNIS), PO Box 156, N-9171 Longyearbyen, Svalbard, Norway.
⁴ BCTA Research Group, Department of Zoology and Animal Cell Biology, Faculty of Science and Technology, University of the Basque Country (UPV-EHU), Sarriena z/g, E-48940 Leioa, Bizkaia (Basque Country), Spain; BCTA Research Group, Research Centre for Experimental Marine Biology and Biotechnology (PiE-UPV/EHU), University of the Basque Country (UPV/EHU), Areatza z/g, 48620 Plentzia, Bizkaia (Basque Country), Spain. Electronic address: ionan.marigomez@ehu.eus.

PMID: 36893648
DOI: 10.1016/j.marpolbul.2023.114786

Abstract

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.

Keywords: Dispersant; Oil; PAH mixtures; Sea urchin embryo; Temperature; Toxicity.

MeSH terms

Animals
Magnesium Oxide
Oils
Petroleum Pollution*
Petroleum* / toxicity
Polycyclic Aromatic Hydrocarbons* / toxicity
Sea Urchins
Seafood
Temperature
Water
Water Pollutants, Chemical* / analysis
Water Pollutants, Chemical* / toxicity

Substances

Magnesium Oxide
Water Pollutants, Chemical
Oils
Petroleum
Polycyclic Aromatic Hydrocarbons
Water