Gérald Chaput
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View article: Genomic Basis and Climate Change Vulnerability of Migration Timing in Atlantic Salmon ( <i>Salmo salar</i> )
Genomic Basis and Climate Change Vulnerability of Migration Timing in Atlantic Salmon ( <i>Salmo salar</i> ) Open
With global environmental change, mismatches between seasonal movements of species and environmental conditions are increasingly impacting survival and persistence. Atlantic salmon ( Salmo salar ) perform long‐distance marine migrations cu…
View article: Body length changes for Atlantic salmon (<i>Salmo salar</i>) over five decades exhibit weak spatial synchrony over a broad latitudinal gradient
Body length changes for Atlantic salmon (<i>Salmo salar</i>) over five decades exhibit weak spatial synchrony over a broad latitudinal gradient Open
Understanding the factors that drive spatial synchrony among populations or species is important for management and recovery of populations. The range‐wide declines in Atlantic salmon ( Salmo salar ) populations may be the result of broad‐…
View article: Variable parallelism in the genomic basis of age at maturity across spatial scales in Atlantic Salmon
Variable parallelism in the genomic basis of age at maturity across spatial scales in Atlantic Salmon Open
Complex traits often exhibit complex underlying genetic architectures resulting from a combination of evolution from standing variation, hard and soft sweeps, and alleles of varying effect size. Increasingly, studies implicate both large‐e…
View article: A semi-automated spectral approach to analyzing cyclical growth patterns using fish scales
A semi-automated spectral approach to analyzing cyclical growth patterns using fish scales Open
We introduce a new semi-automated approach to analyzing growth patterns recorded on fish scales. After manually specifying the center of the scale, the algorithm radially unwraps the scale patterns along a series of transects from the cent…
View article: Benchmark Workshop on Atlantic Salmon (<i>Salmo salar</i>) in the North Atlantic (WKBSALMON)
Benchmark Workshop on Atlantic Salmon (<i>Salmo salar</i>) in the North Atlantic (WKBSALMON) Open
Update:March 2024: Report updated with additional working document (WD10-Retrospective-patterns-LCM-2024) and explanatory paragraph in Executive SummaryWKBSalmon reviewed the implementation of a Life Cycle Model (LCM) for wild anadr…
View article: The Second ICES/NASCO Workshop on Salmon Mortality at Sea (WKSalmon2; outputs from 2022 meeting)
The Second ICES/NASCO Workshop on Salmon Mortality at Sea (WKSalmon2; outputs from 2022 meeting) Open
ICES, in consultation with the North Atlantic Salmon Conservation Organisation (NASCO), convened a series of workshops to explore how to use biological and environmental data in models to advance the conservation of wild Atlantic salmon (<…
View article: Estimating multiple years, tributary‐specific, and overall Atlantic salmon smolt abundance in a large Canadian catchment using capture–mark–recapture experiments
Estimating multiple years, tributary‐specific, and overall Atlantic salmon smolt abundance in a large Canadian catchment using capture–mark–recapture experiments Open
Population monitoring of Atlantic salmon ( Salmo salar L.) abundance is an essential element to understand annual stock variability and inform fisheries management processes. Smolts are the life stage marking the transition from the freshw…
View article: Incorporating conservation limit variability and stock risk assessment in precautionary salmon catch advice at the river scale
Incorporating conservation limit variability and stock risk assessment in precautionary salmon catch advice at the river scale Open
International wild Atlantic salmon management priorities have moved from exploitation to conservation since the 1990s, recognizing the need to protect diversity and abundance at individual river levels amid widespread declines. Here we rev…
View article: Parallel genomic basis of age at maturity across spatial scales in Atlantic Salmon
Parallel genomic basis of age at maturity across spatial scales in Atlantic Salmon Open
Complex traits often exhibit complex underlying genetic architectures resulting from a combination of evolution from standing variation, hard and soft sweeps, and alleles of varying effect size. Increasingly, studies implicate both large-e…
View article: Quantifying the effects of post-surgery recovery time on the migration dynamics and survival rates in the wild of acoustically tagged Atlantic Salmon Salmo salar smolts
Quantifying the effects of post-surgery recovery time on the migration dynamics and survival rates in the wild of acoustically tagged Atlantic Salmon Salmo salar smolts Open
Background The experimental effects of surgically implanting fish with acoustic transmitters are likely to have negative effects on survival and behaviour. Measuring the extent of these negative effects is important if we wish to extrapola…
View article: Working Group on North Atlantic Salmon
Working Group on North Atlantic Salmon Open
WGNAS met to consider questions posed to ICES by the North Atlantic Salmon Conservation Organisation (NASCO).The terms of reference were addressed by reviewing working documents prepared prior to the meeting as well as development of analy…
View article: Workshop for Salmon Life Cycle Modelling
Workshop for Salmon Life Cycle Modelling Open
A workshop of jurisdictional experts and modellers working on Atlantic salmon in the North Atlantic was held to develop competencies in using a newly developed Life Cycle Model (LCM) and to formalize the workflow of the new modelling frame…
View article: Quantifying the Effects of Post-surgery Recovery Time on the Migration Dynamics and Survival Rates in the Wild of Acoustically Tagged Atlantic Salmon Salmo Salar Smolts
Quantifying the Effects of Post-surgery Recovery Time on the Migration Dynamics and Survival Rates in the Wild of Acoustically Tagged Atlantic Salmon Salmo Salar Smolts Open
Background: The experimental effects of surgically implanting fish with acoustic transmitters is likely to have negative effects on survival and behavior. Measuring the extent of these negative effects is important if we wish to extrapolat…
View article: Range-wide genetic assignment confirms long-distance oceanic migration in Atlantic salmon over half a century
Range-wide genetic assignment confirms long-distance oceanic migration in Atlantic salmon over half a century Open
Atlantic salmon (Salmo salar) populations throughout the North Atlantic have declined in recent decades largely due to reduced marine survival, yet our understanding of marine distribution patterns and migratory routes remains limited. Her…
View article: Spatial synchrony in the response of a long range migratory species (<i>Salmo salar</i>) to climate change in the North Atlantic Ocean
Spatial synchrony in the response of a long range migratory species (<i>Salmo salar</i>) to climate change in the North Atlantic Ocean Open
A major challenge in understanding the response of populations to climate change is to separate the effects of local drivers acting independently on specific populations, from the effects of global drivers that impact multiple populations …
View article: Spatio-temporal trends in the importance of iteroparity across Atlantic salmon populations of the northwest Atlantic
Spatio-temporal trends in the importance of iteroparity across Atlantic salmon populations of the northwest Atlantic Open
Iteroparity is a bet-hedging strategy where individuals spread the risk of reproductive failure over time. The occurrence of iteroparity (i.e. proportion of repeat spawners in annual returns) varies among Atlantic salmon (Salmo salar) popu…
View article: Investigating the drivers of Atlantic salmon populations decline at the North Atlantic basin scale through a Bayesian life cycle modelling approach
Investigating the drivers of Atlantic salmon populations decline at the North Atlantic basin scale through a Bayesian life cycle modelling approach Open
View article: A hierarchical life cycle model for Atlantic salmon stock assessment at the North Atlantic basin scale
A hierarchical life cycle model for Atlantic salmon stock assessment at the North Atlantic basin scale Open
We developed an integrated hierarchical Bayesian life cycle model that simultaneously estimates the abundance of post-smolts at sea, post-smolt survival rates, and proportions maturing as 1SW, for all SU in Northern Europe, Southern Europe…
View article: A hierarchical life cycle model for Atlantic salmon stock assessment at\n the North Atlantic basin scale
A hierarchical life cycle model for Atlantic salmon stock assessment at\n the North Atlantic basin scale Open
We developed an integrated hierarchical Bayesian life cycle model that\nsimultaneously estimates the abundance of post-smolts at sea, post-smolt\nsurvival rates, and proportions maturing as 1SW, for all SU in Northern Europe,\nSouthern Eur…
View article: Working Group on North Atlantic Salmon
Working Group on North Atlantic Salmon Open
WGNAS met to consider questions posed to ICES by the North Atlantic Salmon Conservation Organisation (NASCO) and also generic questions for regional and species Working Groups posed by ICES.The terms of reference were addressed by reviewin…
View article: Spatial synchrony in the response of a long distant migratory specie (Salmo salar) to climate change in the North Atlantic ocean
Spatial synchrony in the response of a long distant migratory specie (Salmo salar) to climate change in the North Atlantic ocean Open
International audience
View article: Atlantic salmon (Salmo salar) smolt and early post-smolt migration and survival inferred from multi-year and multi-stock acoustic telemetry studies in the Gulf of St. Lawrence, northwest Atlantic
Atlantic salmon (Salmo salar) smolt and early post-smolt migration and survival inferred from multi-year and multi-stock acoustic telemetry studies in the Gulf of St. Lawrence, northwest Atlantic Open
The migration dynamics and inter-annual variation in early at-sea survival of Atlantic salmon (Salmo salar) smolts over 14 years of study are reported for four river populations located in the Gulf of St. Lawrence (Canada). Acoustically ta…
View article: Atlantic salmon mortality at sea: Developing an evidence-based "Likely Suspects" Framework
Atlantic salmon mortality at sea: Developing an evidence-based "Likely Suspects" Framework Open
Based on a workshop organised by the Atlantic Salmon Trust, held in Edinburgh Tuesday, 6th November – Thursday, 8th November 2017.
View article: A Bayesian hierarchical model to unravel the spatial covariations in the response of Atlantic salmon populations to climate change in the North Atlantic Ocean
A Bayesian hierarchical model to unravel the spatial covariations in the response of Atlantic salmon populations to climate change in the North Atlantic Ocean Open
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View article: Incorporating natural variability in biological reference points and population dynamics into management of Atlantic salmon (Salmo salar L.) stocks returning to home waters
Incorporating natural variability in biological reference points and population dynamics into management of Atlantic salmon (Salmo salar L.) stocks returning to home waters Open
View article: A bayesian hierarchical modelling approach to unravel large scale patterns of decline in the marine productivity of A. salmon in the North Atlantic Ocean
A bayesian hierarchical modelling approach to unravel large scale patterns of decline in the marine productivity of A. salmon in the North Atlantic Ocean Open
View article: Genetic mixed-stock analysis disentangles spatial and temporal variation in composition of the West Greenland Atlantic Salmon fishery
Genetic mixed-stock analysis disentangles spatial and temporal variation in composition of the West Greenland Atlantic Salmon fishery Open
The West Greenland Atlantic Salmon (Salmo salar) fishery represents the largest remaining mixed-stock fishery for Atlantic Salmon in the Northwest Atlantic and targets multi-sea-winter (MSW) salmon from throughout North America and Europe.…
View article: Incorporating natural variability in biological reference points and population dynamics into management of Atlantic salmon (Salmo salar L.) stocks returning to home waters
Incorporating natural variability in biological reference points and population dynamics into management of Atlantic salmon (Salmo salar L.) stocks returning to home waters Open
Following advice from the International Council for the Exploration of the Seas and North Atlantic Salmon Conservation Organization, Irish salmon stocks have been managed on a river-by-river basis since 2007 with biological reference point…
View article: A Bayesian life cycle model to unravel changes in the marine productivity of Atlantic salmon population in the North Atlantic Ocean
A Bayesian life cycle model to unravel changes in the marine productivity of Atlantic salmon population in the North Atlantic Ocean Open
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View article: Meta-analysis of freshwater productivity: a contribution to the modeling of Atlantic salmon (Salmo salar) population dynamics at the scale of stock complexes
Meta-analysis of freshwater productivity: a contribution to the modeling of Atlantic salmon (Salmo salar) population dynamics at the scale of stock complexes Open
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