Carey E. Donald

Arsenosugar phosphate extracted from seaweed: Isolation, quantification, characterization, and in vitro toxicological studies

Mohammad Ghazali, Veronika Sele, Angeles Sahuquillo, Alba Morales Rodríguez et autres

The increasing interest in seaweed as a potential feed and food source has prompted concerns regarding the presence of potentially toxic arsenic (As) species. Seaweed is known to contain the organic As species arsenosugars, but the toxicity of these compounds is not …

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Minimal oil exposure causes sublethal damage in early larval stages of a key prey species, lesser sandeel (Ammodytes marinus)

Elin Sørhus, Reidun Marie Bjelland, Caroline M. F. Durif, Sonnich Meier et autres

The lesser sandeel (Ammodytes marinus) is a vital forage species in the North Sea, supporting numerous seabird, fish, and marine mammal populations. Its life cycle is characterized by benthic dwelling during juvenile and adult stages and a pelagic larval stage, which makes …

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Pesticide residues in aquaculture salmon filet and feed: Quantitative and qualitative screening profiles of legacy and current-use pesticides using GC-EI-MS/MS and LC-ESI-IMS-QToF

Carey E. Donald, Annette Bernhard, Marianne Hauglid, Annie Fürstenberg et autres

In recent decades, the ingredients used in aquaculture feeds have changed from marine-based to more plant-based. As a result, the content of legacy, organochlorine pesticides has decreased, but the potential increase of current use, land-based pesticides has not been documented. In this …

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Oil droplets are severely overlooked in risk assessments

Håvard Guldbrandsen Frøysa, Raymond Nepstad, Elin Sørhus, Carey E. Donald et autres

Abstract Risk assessments of oil spills in the marine environment typically only address dissolved oil. However, oil droplets may adhere to some organisms and result in prolonged exposure not disrupted by diverging dispersal trajectories. Here, we present a framework for quantifying exposure …

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Tolerance and degradation of the insecticide pirimiphos-methyl and its metabolites by black soldier fly and yellow mealworm larvae

Carey E. Donald, Gunnhild Jaastad, M.H. Flågeng, Sylvain Merel et autres

Abstract Insect farming is gaining increasing attention because of the ability of insects to upscale a variety of waste and by-product biomass efficiently into proteins and lipids. In the European Union and in Norway, the use of insects is permitted in formulated …

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Transformative knowledge of polar polycyclic aromatic hydrocarbons via high-resolution mass spectrometry

Charlotte L. Nakken, Elin Sørhus, Bjarte Holmelid, Sonnich Meier et autres

Polycyclic aromatic hydrocarbons (PAHs) are toxic contaminants with a widespread presence in diverse environmental contexts. Transformation processes of PAHs via degradation and biotransformation have parallels in humans, animals, plants, fungi, and bacteria. Mapping the transformation products of PAHs is therefore crucial for …

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Arsenosugar phosphate extracted from seaweed: Isolation, Quantification, Characterization and in vitro Toxicological Studies

Mohammad Ghazali, Veronika Sele, Angeles Sahuquillo Estrugo, A. Rodrı́guez et autres

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Exposure of Polycyclic Aromatic Hydrocarbons (PAHs) and Crude Oil to Atlantic Haddock (Melanogrammus aeglefinus): A Unique Snapshot of the Mercapturic Acid Pathway

Charlotte L. Nakken, Marc H.G. Berntssen, Sonnich Meier, Lubertus Bijlsma et autres

High Resolution Image Download MS PowerPoint Slide Fish exposed to xenobiotics like petroleum-derived polycyclic aromatic hydrocarbons (PAHs) will immediately initiate detoxification systems through effective biotransformation reactions. Yet, there is a discrepancy between recognized metabolic pathways and the actual metabolites detected in fish …

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Oil droplet fouling on lesser sandeel (Ammodytes marinus) eggshells does not enhance the crude oil induced developmental toxicity

Elin Sørhus, Reidun Marie Bjelland, Caroline M. F. Durif, Espen Skjelnes Johnsen et autres

The oil industry's expansion and increased operational activity at older installations, along with their demolition, contribute to rising cumulative pollution and a heightened risk of accidental oil spills. The lesser sandeel (Ammodytes marinus) is a keystone prey species in the North Sea …

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Discovery of polycyclic aromatic acid metabolites in fish exposed to the petroleum compounds 1-methylphenanthrene and 1,4-dimethylphenanthrene

Charlotte L. Nakken, Sonnich Meier, Svein Are Mjøs, Lubertus Bijlsma et autres

Most of the polycyclic aromatic hydrocarbons (PAHs) in petroleum are alkylated (alkyl PAHs), still the metabolism of these alkyl PAHs to the expected acid products (polycyclic aromatic acids; PAAs) has yet to be demonstrated in oil-exposed fish. Should these compounds be discovered …

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Biological Responses of Pacific Herring Embryos to Crude Oil Are Quantifiable at Exposure Levels Below Conventional Limits of Quantitation for PAHs in Water and Tissues

John P. Incardona, Tiffany L. Linbo, James R. Cameron, Barbara L. French et autres

High Resolution Image Download MS PowerPoint Slide Pacific herring ( Clupea pallasii ), a cornerstone of marine food webs, generally spawn on marine macroalgae in shallow nearshore areas that are disproportionately at risk from oil spills. Herring embryos are also highly susceptible …

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Mind the gap – Relevant design for laboratory oil exposure of fish as informed by a numerical impact assessment model

Håvard Guldbrandsen Frøysa, Raymond Nepstad, Sonnich Meier, Carey E. Donald et autres

Laboratory experiments provide knowledge of species-specific effects thresholds that are used to parameterize impact assessment models of oil contamination on marine ecosystems. Such experiments typically place individuals of species and life stages in tanks with different contaminant concentrations. Exposure concentrations are usually …

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