Patrick Gagnon
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View article: Immunometabolic state modulation of sequential decision making in patch-foraging mice
Immunometabolic state modulation of sequential decision making in patch-foraging mice Open
Summary Animals have evolved sophisticated behavioural and metabolic adaptations to respond to threats to homeostasis, including resource scarcity and infectious pathogens. Energy deficits associated with lack of food availability and sick…
View article: Unravelling Hydrogen Isotope Fractionation in Marine Macroalgae: Insights from Macrocystis pyrifera
Unravelling Hydrogen Isotope Fractionation in Marine Macroalgae: Insights from Macrocystis pyrifera Open
Marine ecosystems play a critical role in global photosynthetic carbon fixation, with approximately 5.36 Pg C exported annually via the biological pump. Macroalgae alone sequester around 200 million tons of CO₂ annually, though these…
View article: A Common Terminology to Unify Research and Conservation of Coralline Algae and the Habitats They Create
A Common Terminology to Unify Research and Conservation of Coralline Algae and the Habitats They Create Open
Linguistic uncertainty is a prime source of uncertainty pervading ecology and conservation. Coralline algae are a widespread and diverse group of calcifying red macroalgae that underpin coastal ecosystem function and service provision. Rec…
View article: Ocean weather, biological rates, and unexplained global ecological patterns
Ocean weather, biological rates, and unexplained global ecological patterns Open
As on land, oceans exhibit high temporal and spatial temperature variation. This "ocean weather" contributes to the physiological and ecological processes that ultimately determine the patterns of species distribution and abundance, yet is…
View article: Impact of Precision Feeding During Gestation on the Performance of Sows over Three Cycles
Impact of Precision Feeding During Gestation on the Performance of Sows over Three Cycles Open
This study evaluated the impact of precision feeding and bump feeding strategies during gestation on the reproductive performance of sows monitored over three cycles. Four treatments were compared: two constant-concentration feeding strate…
View article: High Vulnerability of Rhodolith Bed Frameworks and Underlying Sediment to Ongoing Ocean Climate Change
High Vulnerability of Rhodolith Bed Frameworks and Underlying Sediment to Ongoing Ocean Climate Change Open
Rhodoliths are non‐geniculate, free‐living coralline red algae that can accumulate on the seafloor and form structurally complex habitats supporting highly biodiverse communities termed rhodolith beds. Limited understanding of key rhodolit…
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: Ocean weather, biological rates, and unexplained global ecological patterns
Ocean weather, biological rates, and unexplained global ecological patterns Open
As on land, oceans exhibit high temporal and spatial temperature variation. This “ocean weather” contributes to the physiological and ecological processes that ultimately determine the patterns of species distribution and abundance, yet is…
View article: 32. Impact of precision feeding during gestation on the productive career of nulliparous sows over three reproductive parities
32. Impact of precision feeding during gestation on the productive career of nulliparous sows over three reproductive parities Open
International audience
View article: 13 Impact of precision feeding during gestation on the productive career of sows over three reproductive parities
13 Impact of precision feeding during gestation on the productive career of sows over three reproductive parities Open
The aim of this study was to evaluate the impact of precision feeding during gestation on the career performances and longevity of sows, initially gilts, monitored over three successive reproductive cycles. Four isoenergetic treatments wer…
View article: PSV-2 Impact of Diseases in Pig Production on Carcass and Meat Quality
PSV-2 Impact of Diseases in Pig Production on Carcass and Meat Quality Open
Several diseases, including Porcine Respiratory and Reproductive Syndrome (PRRS), are present in pig herds. The effects of diseases on growth performance are generally well known, but there is a lack of information on the consequences on c…
View article: 219 Effects of Precision Feeding and the “Bump Feeding” Strategy in Gestating Sows on Performances and Body Condition in Sows Monitored for the First Two Gestation-Lactation Cycles
219 Effects of Precision Feeding and the “Bump Feeding” Strategy in Gestating Sows on Performances and Body Condition in Sows Monitored for the First Two Gestation-Lactation Cycles Open
The introduction of precision feeding in sows depends on a precise estimation of its potential benefits. The goal of this study was to evaluate the effects of precision feeding and feed intake during gestation on gilt performances during t…
View article: Spatiotemporal Variability in Subarctic Lithothamnion glaciale Rhodolith Bed Structural Complexity and Macrofaunal Diversity
Spatiotemporal Variability in Subarctic Lithothamnion glaciale Rhodolith Bed Structural Complexity and Macrofaunal Diversity Open
Rhodoliths are non-geniculate, free-living coralline red algae that can accumulate on the seafloor and form structurally complex benthic habitats supporting diverse communities known as rhodolith beds. We combined in situ rhodolith collect…
View article: Spatial distribution of benthic flora and fauna of coastal placentia bay, an ecologically and biologically significant area of the island of newfoundland, atlantic Canada
Spatial distribution of benthic flora and fauna of coastal placentia bay, an ecologically and biologically significant area of the island of newfoundland, atlantic Canada Open
Coastal habitats have the potential to be biodiversity hotspots that provide important ecosystem services, but also hotspots for human development and exploitation. Continued use of coastal ecosystem services requires establishing baseline…
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: Distinct realized physiologies in green sea urchin (<i>Strongylocentrotus droebachiensis</i>) populations from barren and kelp habitats
Distinct realized physiologies in green sea urchin (<i>Strongylocentrotus droebachiensis</i>) populations from barren and kelp habitats Open
Overgrazing of habitat-forming kelps by sea urchins is reshaping reef seascapes in many temperate regions. Loss of kelp, in particular as a food source, may alter individual consumer physiology, which in turn may impair their ability to re…
View article: <i>Lithothamnion</i> (Hapalidiales, Rhodophyta) in the changing Arctic and Subarctic: DNA sequencing of type and recent specimens provides a systematics foundation*
<i>Lithothamnion</i> (Hapalidiales, Rhodophyta) in the changing Arctic and Subarctic: DNA sequencing of type and recent specimens provides a systematics foundation* Open
Coralline red algae in the non-geniculate genera Clathromorphum, Phymatolithon and Lithothamnion are important benthic ecosystem engineers in the photic zone of the Arctic and Subarctic. In these regions, the systematics and biogeography o…
View article: <i>Lithothamnion</i> (Hapalidiales, Rhodophyta) in the changing Arctic and Subarctic: DNA sequencing of type and recent specimens provides a systematics foundation*
<i>Lithothamnion</i> (Hapalidiales, Rhodophyta) in the changing Arctic and Subarctic: DNA sequencing of type and recent specimens provides a systematics foundation* Open
Coralline red algae in the non-geniculate genera Clathromorphum, Phymatolithon and Lithothamnion are important benthic ecosystem engineers in the photic zone of the Arctic and Subarctic. In these regions, the systematics and biogeography o…
View article: Plasticity in the antipredator behavior of the orange-footed sea cucumber under shifting hydrodynamic forces
Plasticity in the antipredator behavior of the orange-footed sea cucumber under shifting hydrodynamic forces Open
Marine invertebrates that move too slowly to evade unfavorable environmental change may instead exhibit phenotypic plasticity, allowing them to adjust to varying conditions. The orange-footed sea cucumber Cucumaria frondosa is a slow-movin…
View article: Effects of light and temperature on Mg uptake, growth, and calcification in the proxy climate archive <i>Clathromorphum</i> <i>compactum</i>
Effects of light and temperature on Mg uptake, growth, and calcification in the proxy climate archive <i>Clathromorphum</i> <i>compactum</i> Open
The shallow-marine benthic coralline alga Clathromorphum compactum is an important annual- to sub-annual-resolution archive of Arctic and subarctic environmental conditions, allowing reconstructions going back > 600 years. Both Mg content,…
View article: Clathromorphum Light/Temperature Experiment Data
Clathromorphum Light/Temperature Experiment Data Open
MgCO3 data from Clathromorphum compactum samples grown under various light/temperature conditions. Data from article published in Biogeosciences: Effects of light and temperature on Mg uptake, growth, and calcification in the proxy climate…
View article: Clathromorphum Light/Temperature Experiment Data
Clathromorphum Light/Temperature Experiment Data Open
MgCO3 data from Clathromorphum compactum samples grown under various light/temperature conditions. Data from article published in Biogeosciences: Effects of light and temperature on Mg uptake, growth, and calcification in the proxy climate…
View article: Effects of light and temperature on Mg uptake, growth, and calcification in the proxy climate archive <i>Clathromorphum compactum</i>
Effects of light and temperature on Mg uptake, growth, and calcification in the proxy climate archive <i>Clathromorphum compactum</i> Open
The shallow–marine benthic coralline alga Clathromorphum compactum is an important annual to sub-annual resolution archive of Arctic and Subarctic environmental conditions, allowing reconstructions going back > 600 years. Both Mg content, …
View article: Mechanisms of stability of rhodolith beds: sedimentological aspects
Mechanisms of stability of rhodolith beds: sedimentological aspects Open
MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout the JournalEditorsTheme Sections MEPS 594:65-83 (2018) - DOI: https://doi.org/10.3…
View article: Development of a decision support tool for precision feeding of pregnant sows
Development of a decision support tool for precision feeding of pregnant sows Open
Nutritional studies indicate that nutrient requirements for pregnancy largely differ among sows and according to the stage of pregnancy, whereas in practice the same diet is generally fed to all sows from a given herd. In this context, the…
View article: Forecasting the magnitude and composition of phytoplankton blooms in a eutrophic lowland river (Rivière Yamaska, Que., Canada)
Forecasting the magnitude and composition of phytoplankton blooms in a eutrophic lowland river (Rivière Yamaska, Que., Canada) Open
The mechanisms controlling phytoplankton biomass and composition in the lower reach of the eutrophic (total phosphorus > 100 μg P·L −1 ) Rivière Yamaska were studied over six consecutive summers characterized by high (2008–2009) and low (2…
View article: Integrated assessment of climate change impact on surface runoff contamination by pesticides
Integrated assessment of climate change impact on surface runoff contamination by pesticides Open
Pesticide transport by surface runoff depends on climate, agricultural practices, topography, soil characteristics, crop type, and pest phenology. To accurately assess the impact of climate change, these factors must be accounted for in a …
View article: Thermal and Hydrodynamic Environments Mediate Individual and Aggregative Feeding of a Functionally Important Omnivore in Reef Communities
Thermal and Hydrodynamic Environments Mediate Individual and Aggregative Feeding of a Functionally Important Omnivore in Reef Communities Open
In eastern Canada, the destruction of kelp beds by dense aggregations (fronts) of the omnivorous green sea urchin, Strongylocentrotus droebachiensis, is a key determinant of the structure and dynamics of shallow reef communities. Recent st…