Molecular responses of sponge larvae exposed to partially weathered condensate oil

Luter, Heidi M., Laffy, Patrick, Flores, Florita, Brinkman, Diane L., Fisher, Rebecca, and Negri, Andrew P. (2024) Molecular responses of sponge larvae exposed to partially weathered condensate oil. Marine Pollution Bulletin, 199. 115928.

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DOI: 10.1016/j.marpolbul.2023.115928

View at Publisher Website: https://doi.org/10.1016/j.marpolbul.2023...

Abstract

Anthropogenic inputs of petroleum hydrocarbons into the marine environment can have long lasting impacts on benthic communities. Sponges form an abundant and diverse component of benthic habitats, contributing a variety of important functional roles; however, their responses to petroleum hydrocarbons are largely unknown. This study combined a traditional ecotoxicological experimental design and endpoint with global gene expression profiling and microbial indicator species analysis to examine the effects of a water accommodated fraction (WAF) of condensate oil on a common Indo-Pacific sponge, Phyllospongia foliascens. A no significant effect concentration (N(S)EC) of 2.1 % WAF was obtained for larval settlement, while gene-specific (N(S)EC) thresholds ranged from 3.4 % to 8.8 % WAF. Significant shifts in global gene expression were identified at WAF treatments ≥20 %, with larvae exposed to 100 % WAF most responsive. Results from this study provide an example on the incorporation of non-conventional molecular and microbiological responses into ecotoxicological studies on petroleum hydrocarbons.


Item ID:	82022
Item Type:	Article (Research - C1)
ISSN:	1879-3363
Keywords:	Gene expression, Hydrocarbon toxicity, Microbial indicators, Phyllospongia foliascens, Sponge larvae
Copyright Information:	© 2023 Australian Institute of Marine Science. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/0
Date Deposited:	01 Apr 2025 22:55
FoR Codes:	41 ENVIRONMENTAL SCIENCES > 4105 Pollution and contamination > 410599 Pollution and contamination not elsewhere classified @ 25% 31 BIOLOGICAL SCIENCES > 3103 Ecology > 310305 Marine and estuarine ecology (incl. marine ichthyology) @ 50% 31 BIOLOGICAL SCIENCES > 3105 Genetics > 310505 Gene expression (incl. microarray and other genome-wide approaches) @ 25%
SEO Codes:	18 ENVIRONMENTAL MANAGEMENT > 1802 Coastal and estuarine systems and management > 180201 Assessment and management of coastal and estuarine ecosystems @ 100%
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