Potent Phototoxicity of Marine Bunker Oil to Translucent Herring Embryos after Prolonged ...

Potent Phototoxicity of Marine Bunker Oil to Translucent Herring Embryos after Prolonged ...

14 Pages · 2012 · 4.94 MB · English

Pacific herring embryos (Clupea pallasi) spawned three months following the Cosco Busan bunker oil spill in San Francisco. Bay showed this hypothesis by exposing herring embryos to both trace levels of weathered Cosco Busan bunker oil and sunlight, with deactivation with sodium thiosulfate.

Potent Phototoxicity of Marine Bunker Oil to Translucent Herring Embryos after Prolonged ... free download

UC Davis UC Davis Previously Published Works Title Potent phototoxicity of marine bunker oil to translucent herring embryos after prolonged weathering Permalink https://escholarshiporg/uc/item/9xm1g2tw Journal PLoS ONE, 7(2) Authors Incardona, JP Vines, CA Linbo, TL et al Publication Date 20120201 DOI 101371/journalpone0030116 Peer reviewed eScholarshiporg Powered by the California Digital Library University of California Potent Phototoxicity of Marine Bunker Oil to Translucent Herring Embryos after Prolonged Weathering John P Incardona 1* , Carol A Vines 2, Tiffany L Linbo 1, Mark S Myers 1, Catherine A Sloan 1, Bernadita F Anulacion 1, Daryle Boyd 1, Tracy K Collier 1¤, Steven Morgan 2, Gary N Cherr 2,3 , Nathaniel L Scholz 1 1 Environmental Conservation Division, National Oceanic and Atmospheric Administration, Northwest Fisheries Science Center, Seattle, Washingto n, United States of America, 2University of CaliforniaDavis Bodega Marine Laboratory, Bodega Bay, California, United States of America, 3Departments of Environmental Toxicology and Nutrition, University of California Davis, Davis, California, United States of America Abstract Pacific herring embryos ( Clupea pallasi ) spawned three months following the Cosco Busan bunker oil spill in San Francisco Bay showed high rates of late embryonic mortality in the intertidal zone at oiled sites Dead embryos developed to thehatching stage (eg fully pigmented eyes) before suffering extensive tissue deterioration In contrast, embryos incubated subtidally at oiled sites showed evidence of sublethal oil exposure (petroleuminduced cardiac toxicity) with very low rates of mortality These field findings suggested an enhancement of oil toxicity through an interaction between oil and anotherenvironmental stressor in the intertidal zone, such as higher levels of sunlightderived ultraviolet (UV) radiation We testedthis hypothesis by exposing herring embryos to both trace levels of weathered Cosco Busan bunker oil and sunlight, with and without protection from UV radiation Cosco Busan oil and UV coexposure were both necessary and sufficient to induce an acutely lethal necrotic syndrome in hatching stage embryos that closely mimicked the condition of dead embryossampled from oiled sites Tissue levels of known phototoxic polycyclic aromatic compounds were too low to explain the observed degree

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