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View article: Oil droplets are severely overlooked in risk assessments
Oil droplets are severely overlooked in risk assessments Open
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 …
View article: No one acts alone–unravelling the compositional influences of organic compounds in offshore produced water on zebrafish embryotoxicity
No one acts alone–unravelling the compositional influences of organic compounds in offshore produced water on zebrafish embryotoxicity Open
Offshore produced water (PW) is one of the largest and most chemically complex effluents of waste directly and intentionally discharged into the marine environment. Although it is well known that PW can be severely toxic to marine organism…
View article: Connecting the dots: evidence of interactions between wild Atlantic cod Gadus morhua, the benthic environment and salmon farm discharges
Connecting the dots: evidence of interactions between wild Atlantic cod Gadus morhua, the benthic environment and salmon farm discharges Open
Rapid expansion in coastal salmon farming has coincided with declines in coastal Atlantic cod Gadus morhua populations in Norway, raising suspicions over a causal relationship. One established effects pathway concerns the discharge of exog…
View article: Polar cod early life stage exposure to potential oil spills in the Arctic
Polar cod early life stage exposure to potential oil spills in the Arctic Open
Arctic amplification of climate change is causing sea ice to retreat at unprecedented rates, potentially opening up large vulnerable Arctic areas for oil and gas exploration and new shipping routes. This rapid warming marginalizes sympagic…
View article: Transformative knowledge of polar polycyclic aromatic hydrocarbons via high-resolution mass spectrometry
Transformative knowledge of polar polycyclic aromatic hydrocarbons via high-resolution mass spectrometry Open
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, …
View article: Exposure of Polycyclic Aromatic Hydrocarbons (PAHs) and Crude Oil to Atlantic Haddock (<i>Melanogrammus aeglefinus</i>): A Unique Snapshot of the Mercapturic Acid Pathway
Exposure of Polycyclic Aromatic Hydrocarbons (PAHs) and Crude Oil to Atlantic Haddock (<i>Melanogrammus aeglefinus</i>): A Unique Snapshot of the Mercapturic Acid Pathway Open
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 metab…
View article: Fish species authentication in commercial fish products using mass spectrometry and spectral library matching approach
Fish species authentication in commercial fish products using mass spectrometry and spectral library matching approach Open
Seafood fraud has become a global issue, threatening food security and safety. Adulteration, substitution, dilution, and incorrect labeling of seafood products are fraudulent practices that violate consumer safety. In this context, develop…
View article: Trophic interactions between common minke whales (Balaenoptera acutorostrata) and their prey during summer in the northern Barents Sea
Trophic interactions between common minke whales (Balaenoptera acutorostrata) and their prey during summer in the northern Barents Sea Open
Global warming is causing rapid change in marine food webs, particularly at northern latitudes where temperatures are increasing most rapidly. In this study, the diet of common minke whales Balaenoptera acutorostrata was assessed both in t…
View article: Most of the escaped farmed salmon entering a river during a 5‐year period were infected with one or more viruses
Most of the escaped farmed salmon entering a river during a 5‐year period were infected with one or more viruses Open
Disease interactions between farmed and wild populations have been poorly documented for most aquaculture species, in part due to the complexities to study this. Here, we tested 567 farmed Atlantic salmon escapees, captured in a Norwegian …
View article: Ecological interactions between farmed Atlantic salmon and wild Atlantic cod populations in Norway: A review of risk sources and knowledge gaps
Ecological interactions between farmed Atlantic salmon and wild Atlantic cod populations in Norway: A review of risk sources and knowledge gaps Open
Aquaculture provides an important and expanding source of protein rich and healthy food to the world. However, to minimize environmental harm from aquaculture, interactions with wild fish communities need to be thoroughly assessed. Here, w…
View article: Oil droplet fouling on lesser sandeel (Ammodytes marinus) eggshells does not enhance the crude oil induced developmental toxicity
Oil droplet fouling on lesser sandeel (Ammodytes marinus) eggshells does not enhance the crude oil induced developmental toxicity Open
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 ma…
View article: Discovery of polycyclic aromatic acid metabolites in fish exposed to the petroleum compounds 1-methylphenanthrene and 1,4-dimethylphenanthrene
Discovery of polycyclic aromatic acid metabolites in fish exposed to the petroleum compounds 1-methylphenanthrene and 1,4-dimethylphenanthrene Open
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…
View article: In Vitro Ecotoxicological Assessment Of Pelagic Ecosystems
In Vitro Ecotoxicological Assessment Of Pelagic Ecosystems Open
No abstracts are to be cited without prior reference to the author.The ICES biological effects monitoring in pelagic ecosystems (BECPELAG) workshop is a multi-national, multi-disciplinary workshop aimed at establishing suitable techniques …
View article: Regional and temporal variation in escape history of Norwegian farmed Atlantic salmon
Regional and temporal variation in escape history of Norwegian farmed Atlantic salmon Open
Each year thousands of farmed Atlantic salmon escape from seawater net pens, and introgression has been documented in a range of wild populations. Due to greater experience in the wild, escapees that have been on the run for a longer perio…
View article: Environmentally realistic concentrations of chlorinated, brominated, and fluorinated persistent organic pollutants induce the unfolded protein response as a shared stress pathway in the liver of Atlantic cod (<scp><i>Gadus morhua</i></scp>)
Environmentally realistic concentrations of chlorinated, brominated, and fluorinated persistent organic pollutants induce the unfolded protein response as a shared stress pathway in the liver of Atlantic cod (<span><i>Gadus morhua</i></span>) Open
In the North Sea and North Atlantic coastal areas, fish experience relatively high background levels of persistent organic pollutants. This study aimed to compare the mode of action of environmentally relevant concentrations of mixtures of…
View article: Caught in the trap: over half of the farmed Atlantic salmon removed from a wild spawning population in the period 2014-2018 were mature
Caught in the trap: over half of the farmed Atlantic salmon removed from a wild spawning population in the period 2014-2018 were mature Open
Whilst aquaculture continues its global expansion, containment of fish in sea cages remains a persistent environmental challenge. Within Atlantic salmon Salmo salar farming, widespread escapes over several decades have left a legacy of eco…
View article: Terrestrial fatty acids from feed oil in feed for farmed salmonids are transferred to the liver, gonads, and muscle of wild Atlantic cod (<i>Gadus morhua</i>)
Terrestrial fatty acids from feed oil in feed for farmed salmonids are transferred to the liver, gonads, and muscle of wild Atlantic cod (<i>Gadus morhua</i>) Open
Wild fish attracted to salmon farms feed on waste feed that presently contain high levels of fatty acids of terrestrial origin. This study examines whether mature Atlantic cod (Gadus morhua) caught at spawning grounds has eaten salmon wast…
View article: Crude oil exposure of early life stages of Atlantic haddock suggests threshold levels for developmental toxicity as low as 0.1 μg total polyaromatic hydrocarbon (TPAH)/L
Crude oil exposure of early life stages of Atlantic haddock suggests threshold levels for developmental toxicity as low as 0.1 μg total polyaromatic hydrocarbon (TPAH)/L Open
Atlantic haddock (Melanogrammus aeglefinus) embryos bind dispersed crude oil droplets to the eggshell and are consequently highly susceptible to toxicity from spilled oil. We established thresholds for developmental toxicity and identified…
View article: Alkyl-phenanthrenes in early life stage fish: differential toxicity in Atlantic haddock (<i>Melanogrammus aeglefinus</i>) embryos
Alkyl-phenanthrenes in early life stage fish: differential toxicity in Atlantic haddock (<i>Melanogrammus aeglefinus</i>) embryos Open
Comparative developmental toxicity at the limit of solubility appears unrelated to the position of alkyl substitution. Toxic effects are like crude oil exposures, however much higher doses of the individual compounds are needed.
View article: Co-exposure to UV radiation and crude oil increases acute embryotoxicity and sublethal malformations in the early life stages of Atlantic haddock (Melanogrammus aeglefinus)
Co-exposure to UV radiation and crude oil increases acute embryotoxicity and sublethal malformations in the early life stages of Atlantic haddock (Melanogrammus aeglefinus) Open
Crude oil causes severe abnormalities in developing fish. Photomodification of constituents in crude oil increases its toxicity several fold. We report on the effect of crude oil, in combination with ultraviolet (UV) radiation, on Atlantic…
View article: Attraction of cod Gadus morhua from coastal spawning grounds to salmon farms
Attraction of cod Gadus morhua from coastal spawning grounds to salmon farms Open
Wild fish aggregate at aquaculture net-pens, but the underlying mechanisms are not fully understood. This study examined how salmon farms attract coastal Atlantic cod Gadus morhua from their inshore spawning grounds. Acoustic receivers wer…
View article: Suspension-Feeding Benthic Species’ Physiological and Microbiome Response to Salmon Farming and Associated Environmental Changes
Suspension-Feeding Benthic Species’ Physiological and Microbiome Response to Salmon Farming and Associated Environmental Changes Open
Caged salmon farming is increasingly undertaken in water bodies with strong hydrodynamics where hard and mixed substrate habitats are more prevalent. Yet, these structurally complex and heterogeneous habitats support diverse benthic commun…
View article: Niches of marine mammals in the European Arctic
Niches of marine mammals in the European Arctic Open
The Arctic is warming rapidly, with concomitant sea ice losses and ecosystem changes. The animals most vulnerable to Arctic food web changes are long-lived and slow-growing such as marine mammals, which may not be able to adapt rapidly eno…