Christopher C. Parrish
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View article: Trophic ecology and nutritional status of northern shrimp in Canada’s sub-Arctic
Trophic ecology and nutritional status of northern shrimp in Canada’s sub-Arctic Open
In the Northwest Atlantic Ocean, northern shrimp ( Pandalus borealis ) play key ecological roles as mid-trophic level consumers and as prey to higher-trophic level predators, including commercial fish species. However, the effects of chang…
View article: Production, Transport, Fate and Effects of Lipids in the Marine Environment
Production, Transport, Fate and Effects of Lipids in the Marine Environment Open
Lipids form energy storage depots, cellular barriers and signaling molecules. They are generated and metabolized by enzymes under the influence of biotic and abiotic factors, and some—the long-chain polyunsaturated ω3 and ω6 fatty acids an…
View article: Thraustochytrids and Algae as Sustainable Sources of Long-Chain Omega-3 Fatty Acids for Aquafeeds
Thraustochytrids and Algae as Sustainable Sources of Long-Chain Omega-3 Fatty Acids for Aquafeeds Open
There is limited ability to biosynthesize long-chain omega-3 fatty acids such as EPA and DHA in food webs leading to humans. Seafood is the key source of ω3 LC-PUFA, with aquaculture expected to meet rising global demand; however, marine f…
View article: Multi-Biomarker Analysis Uncovers High Spatio-Temporal Stability of a Subarctic Rhodolith (Lithothamnion glaciale) Bed Food Web
Multi-Biomarker Analysis Uncovers High Spatio-Temporal Stability of a Subarctic Rhodolith (Lithothamnion glaciale) Bed Food Web Open
We used lipid, fatty acid, and stable isotope analyses to investigate variation, over nine months, in the trophodynamics of 10 dominant cryptofaunal, macroalgal/algal, and environmental components from two sites within a rhodolith (Lithoth…
View article: Prolonged Cold Exposure Negatively Impacts Atlantic Salmon (Salmo salar) Liver Metabolism and Function
Prolonged Cold Exposure Negatively Impacts Atlantic Salmon (Salmo salar) Liver Metabolism and Function Open
Large-scale mortality events have occurred during the winter in Atlantic salmon sea cages in Eastern Canada and Iceland. Thus, in salmon held at 3 °C that were apparently healthy (i.e., asymptomatic) and that had ‘early’ and ‘advanced’ sym…
View article: Vegetable omega-3 and omega-6 fatty acids differentially modulate the antiviral and antibacterial immune responses of Atlantic salmon
Vegetable omega-3 and omega-6 fatty acids differentially modulate the antiviral and antibacterial immune responses of Atlantic salmon Open
View article: An aquaculture risk model to understand the causes and consequences of Atlantic Salmon mass mortality events: A review
An aquaculture risk model to understand the causes and consequences of Atlantic Salmon mass mortality events: A review Open
Mass mortality events (MMEs) are defined as the death of large numbers of fish over a short period of time. These events can result in catastrophic losses to the Atlantic salmon aquaculture industry and the local economy. However, they are…
View article: Effect of Dietary Seaweed (<i>Gracilaria pulvinata</i> and <i>Sargassum ilicifolium</i>) on Serum and Mucosal Immunity, Some Growth and Immune‐Related Genes Expression, Antioxidant Status, and Fatty Acid Profile in Asian Seabass (<i>Lates calcarifer</i>)
Effect of Dietary Seaweed (<i>Gracilaria pulvinata</i> and <i>Sargassum ilicifolium</i>) on Serum and Mucosal Immunity, Some Growth and Immune‐Related Genes Expression, Antioxidant Status, and Fatty Acid Profile in Asian Seabass (<i>Lates calcarifer</i>) Open
This study was done to appraise the effects of the combination of dietary Gracilaria pulvinata and Sargassum ilicifolium on growth, immunity, and fatty acid profile in Asian seabass ( Lates calcarifer ). A total of 540 juveniles (36.06 ± 0…
View article: Lipid transfers within the lower food web of western Arctic seas
Lipid transfers within the lower food web of western Arctic seas Open
Polar marine ecosystems are undergoing major transformations due to climate change. Alterations of the physical and chemical growth conditions for plankton are likely to propagate through the food web, potentially having major consequences…
View article: Shotgun-Based Mass Spectrometry Analysis of Phospholipid and Triacylglycerol Molecular Species and Eicosanoids in Salmon Muscle Tissue on Feeding Microbial Oil
Shotgun-Based Mass Spectrometry Analysis of Phospholipid and Triacylglycerol Molecular Species and Eicosanoids in Salmon Muscle Tissue on Feeding Microbial Oil Open
The continuous growth of aquaculture places a growing demand on alternative sources of fish oil (FO). Certain microorganisms provide a sustainable replacement for FO due to their content of EPA and DHA, which are essential for fish health.…
View article: Essential omega‐3 fatty acids are depleted in sea ice and pelagic algae of the Central Arctic Ocean
Essential omega‐3 fatty acids are depleted in sea ice and pelagic algae of the Central Arctic Ocean Open
Microalgae are the main source of the omega‐3 fatty acids eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), essential for the healthy development of most marine and terrestrial fauna including humans. Inverse correlations of alga…
View article: Effects of Replacing Fishmeal with Algal Biomass (Pavlova sp. 459) on Membrane Lipid Composition of Atlantic Salmon (Salmo salar) Parr Muscle and Liver Tissues
Effects of Replacing Fishmeal with Algal Biomass (Pavlova sp. 459) on Membrane Lipid Composition of Atlantic Salmon (Salmo salar) Parr Muscle and Liver Tissues Open
A 12-week feeding trial examined the dietary impact of replacing fishmeal (FM) with algal biomass (AB) derived from Pavlova sp. strain CCMP459 (Pav459) in Atlantic salmon diets. Three distinct diets were formulated: a control diet featurin…
View article: Effects of dietary seaweeds (Gracilaria spp. and Sargassum spp.) on growth, feed utilization, and resistance to acute hypoxia stress in juvenile Asian seabass (Lates calcarifer)
Effects of dietary seaweeds (Gracilaria spp. and Sargassum spp.) on growth, feed utilization, and resistance to acute hypoxia stress in juvenile Asian seabass (Lates calcarifer) Open
The aim of this work was to evaluate the impact of adding Gracilaria spp. and Sargassum spp. to diets on growth performance and resistance to hypoxia stress in Asian seabass. The fish (36.06 ± 0.05 g) were stocked in 18 tanks (200 L), divi…
View article: Effects of Replacement of Fish Oil with Microbial Oil (Schizochytrium sp. T18) on Membrane Lipid Composition of Atlantic Salmon Parr Muscle and Liver Tissues
Effects of Replacement of Fish Oil with Microbial Oil (Schizochytrium sp. T18) on Membrane Lipid Composition of Atlantic Salmon Parr Muscle and Liver Tissues Open
A 16-week feeding trial was conducted to investigate effects of replacing dietary fish oil (FO) with docosahexaenoic acid (DHA)-rich microbial oil (MO) from Schizochytrium sp. (T18) on membrane lipid composition of Atlantic salmon parr liv…
View article: Differences in energy acquisition and storage of farm, wild, and hybrid Atlantic salmon competing in the wild
Differences in energy acquisition and storage of farm, wild, and hybrid Atlantic salmon competing in the wild Open
An understanding of genetic differences in fitness-related traits for farm, wild, and hybrid Atlantic salmon ( Salmo salar) is key for predicting impacts of aquaculture escapes on wild populations. Here we used lipid and fatty acid (FA) an…
View article: Influence of Supplemental Dietary Cholesterol on Growth Performance, Indices of Stress, Fillet Pigmentation, and Upper Thermal Tolerance of Female Triploid Atlantic Salmon (Salmo salar)
Influence of Supplemental Dietary Cholesterol on Growth Performance, Indices of Stress, Fillet Pigmentation, and Upper Thermal Tolerance of Female Triploid Atlantic Salmon (Salmo salar) Open
The salmon aquaculture industry must be proactive at developing mitigation tools/strategies to offset the potential negative impacts of climate change. Therefore, this study examined if additional dietary cholesterol could enhance salmon p…
View article: Fatty acid profiles of more than 470 marine species from the Southern Hemisphere
Fatty acid profiles of more than 470 marine species from the Southern Hemisphere Open
Lipid and fatty acid datasets are commonly used to assess the nutritional composition of organisms, trophic ecology, and ecosystem dynamics. Lipids and their fatty acid constituents are essential nutrients to all forms of life because they…
View article: Changes in photosynthetic parameters and lipid classes of N-limited freshwater microalga under cadmium exposure
Changes in photosynthetic parameters and lipid classes of N-limited freshwater microalga under cadmium exposure Open
In the environment, algae are exposed to non-optimal conditions and adapt their physiology to cope with adverse conditions, such as limiting nutrients or excess contaminants. The present study evaluated the changes in photosynthetic parame…
View article: Nutritional immunomodulation of Atlantic salmon response to Renibacterium salmoninarum bacterin
Nutritional immunomodulation of Atlantic salmon response to Renibacterium salmoninarum bacterin Open
We investigated the immunomodulatory effect of varying levels of dietary ω6/ω3 fatty acids (FA) on Atlantic salmon ( Salmo salar ) antibacterial response. Two groups were fed either high-18:3ω3 or high-18:2ω6 FA diets for 8 weeks, and a th…
View article: Differences in Energy Acquisition and Storage of Farm, Wild, and Hybrid Atlantic Salmon Competing in the Wild
Differences in Energy Acquisition and Storage of Farm, Wild, and Hybrid Atlantic Salmon Competing in the Wild Open
This R script is for analysis of lipid and fatty acid data (percent and concentration) for Atlantic Salmon parr from the common-garden experiment.
View article: Multiple Trophic Tracer Analyses of Subarctic Rhodolith (Lithothamnion glaciale) Bed Trophodynamics Uncover Bottom-Up Forcing and Benthic-Pelagic Coupling
Multiple Trophic Tracer Analyses of Subarctic Rhodolith (Lithothamnion glaciale) Bed Trophodynamics Uncover Bottom-Up Forcing and Benthic-Pelagic Coupling Open
We paired a survey of cryptofaunal abundance and rhodolith morphology with lipid, fatty acid, and stable isotope analyses to quantify nutritional patterns and trophic linkages of six dominant echinoderm, bivalve, gastropod, and polychaete …
View article: Solubilization of nutritional lipids from three coastal and estuarine primary producers using sodium taurocholate as a model surfactant to mimic typical consumer gut-fluids
Solubilization of nutritional lipids from three coastal and estuarine primary producers using sodium taurocholate as a model surfactant to mimic typical consumer gut-fluids Open
View article: Transcriptome Analysis of Atlantic Salmon (Salmo salar) Skin in Response to Sea Lice and Infectious Salmon Anemia Virus Co-Infection Under Different Experimental Functional Diets
Transcriptome Analysis of Atlantic Salmon (Salmo salar) Skin in Response to Sea Lice and Infectious Salmon Anemia Virus Co-Infection Under Different Experimental Functional Diets Open
Sea lice ( Lepeophtheirus salmonis ) are ectoparasitic copepods that cause significant economic loss in marine salmoniculture. In commercial salmon farms, infestation with sea lice can enhance susceptibility to other significant pathogens,…
View article: Environmental impact of bioplastic use: A review
Environmental impact of bioplastic use: A review Open
Throughout their lifecycle, petroleum-based plastics are associated with many environmental problems, including greenhouse gas emissions, persistence in marine and terrestrial environments, pollution, etc. On the other hand, bioplastics fo…
View article: Correction to: Diet-Induced Physiological Responses in the Liver of Atlantic Salmon (Salmo salar) Inferred Using Multiplex PCR Platforms
Correction to: Diet-Induced Physiological Responses in the Liver of Atlantic Salmon (Salmo salar) Inferred Using Multiplex PCR Platforms Open
View article: Influence of Varying Dietary ω6 to ω3 Fatty Acid Ratios on the Hepatic Transcriptome, and Association with Phenotypic Traits (Growth, Somatic Indices, and Tissue Lipid Composition), in Atlantic Salmon (Salmo salar)
Influence of Varying Dietary ω6 to ω3 Fatty Acid Ratios on the Hepatic Transcriptome, and Association with Phenotypic Traits (Growth, Somatic Indices, and Tissue Lipid Composition), in Atlantic Salmon (Salmo salar) Open
The importance of dietary omega-6 to omega-3 (ω6:ω3) fatty acid (FA) ratios for human health has been extensively examined. However, its impact on fish physiology, and the underlying molecular mechanisms, are less well understood. This stu…
View article: Corrigendum: Environmental and Biological Determinants of Algal Lipids in Western Arctic and Subarctic Seas
Corrigendum: Environmental and Biological Determinants of Algal Lipids in Western Arctic and Subarctic Seas Open
CORRECTION article Front. Environ. Sci., 11 March 2021Sec. Biogeochemical Dynamics https://doi.org/10.3389/fenvs.2021.655241
View article: Shotgun Lipidomics for the Determination of Phospholipid and Eicosanoid Profiles in Atlantic Salmon (Salmo salar L.) Muscle Tissue Using Electrospray Ionization (ESI)-MS/MS Spectrometric Analysis
Shotgun Lipidomics for the Determination of Phospholipid and Eicosanoid Profiles in Atlantic Salmon (Salmo salar L.) Muscle Tissue Using Electrospray Ionization (ESI)-MS/MS Spectrometric Analysis Open
Shotgun lipidomics was applied to identify and quantify phospholipids (PLs) in salmon muscle tissue by focusing on the distribution of ω-3 fatty acids (e.g., docosahexaenoic acid (DHA) and eicosapentaenoic acid (EPA)) in the form of phosph…
View article: Environmental and Biological Determinants of Algal Lipids in Western Arctic and Subarctic Seas
Environmental and Biological Determinants of Algal Lipids in Western Arctic and Subarctic Seas Open
The Arctic is undergoing numerous environmental transformations. As a result of rising temperatures and additional freshwater inputs, ice cover is changing, with profound impacts on organisms at the base of food webs and consequently on th…
View article: Influence of Dietary Long-Chain Polyunsaturated Fatty Acids and ω6 to ω3 Ratios on Head Kidney Lipid Composition and Expression of Fatty Acid and Eicosanoid Metabolism Genes in Atlantic Salmon (Salmo salar)
Influence of Dietary Long-Chain Polyunsaturated Fatty Acids and ω6 to ω3 Ratios on Head Kidney Lipid Composition and Expression of Fatty Acid and Eicosanoid Metabolism Genes in Atlantic Salmon (Salmo salar) Open
The interaction of dietary eicosapentaenoic acid and docosahexaenoic acid (EPA+DHA) levels with omega-6 to omega-3 ratios (ω6:ω3), and their impact on head kidney lipid metabolism in farmed fish, are not fully elucidated. We investigated t…