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Peer-Reviewed Publication
Mar Pollut Bull2026;233(Pt 2):120328.September 3, 2026Journal Article

Community-level impacts of low-level diesel exposure on a natural cold-temperate/subarctic phytoplankton assemblage.

Andreana M Cadaillon1, Irene R Schloss2, O Magalí Olmedo-Masat3, Michel Starr4, Francesca Vidussi5, Behzad Mostajir5, Daniel Pech6, Gustavo Ferreyra7
1Centro Austral de Investigaciones Científicas (CONICET-CADIC), Bernardo Houssay 200, 9410, Ushuaia, Argentina; Universidad Nacional de Tierra del Fuego, Antártida e Islas del Atlántico Sur, Fuegia Basket 251, 9410, Ushuaia, Argentina. Electronic address: a.cadaillon@conicet.gov.ar.
2Centro Austral de Investigaciones Científicas (CONICET-CADIC), Bernardo Houssay 200, 9410, Ushuaia, Argentina; Universidad Nacional de Tierra del Fuego, Antártida e Islas del Atlántico Sur, Fuegia Basket 251, 9410, Ushuaia, Argentina.
3Centro Nacional Patagónico (CONICET-CENPAT), Bv. Almirante Brown 2915, Puerto Madryn, Argentina.
4Fisheries and Oceans Canada, DSPE, Maurice Lamontagne Institute (MLI), 850 Route de la Mer, Sainte-Flavie, G0J 2L0, QC, Canada.
5MARBEC (Marine Biodiversity Exploitation, Conservation) French National Centre for Scientific Research, CNRS, Univ Montpellier, IFREMER, IRD, Place E. Bataillon, 34095, Montpellier, France.
6Laboratorio de Biodiversidad Marina y Cambio Climático, El Colegio de la Frontera Sur, Campeche, Mexico.
7Centro Austral de Investigaciones Científicas (CONICET-CADIC), Bernardo Houssay 200, 9410, Ushuaia, Argentina; Institut des sciences de la mer de Rimouski, Université du Québec à Rimouski (UQAR-ISMER), 310 allée des Ursulines, G5L 3A1, QC, Canada.
PubMed DOI

Abstract

Phytoplankton play central roles in marine food webs and carbon cycling, yet their responses to recurrent low-level inputs of refined oils remain poorly understood. We used a 16-day mesocosm experiment to assess the response of a natural cold-temperate/subarctic phytoplankton assemblage from the Lower St. Lawrence Estuary to repeated maritime diesel exposure. Triplicate control mesocosms were comp…

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