Jessica R. Rodger
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View article: Inshore marine coastal zone migration patterns in Atlantic salmon post‐smolts emigrating from eight rivers in north‐east Scotland
Inshore marine coastal zone migration patterns in Atlantic salmon post‐smolts emigrating from eight rivers in north‐east Scotland Open
Atlantic salmon, Salmo salar , migrate through multiple habitat types, each having the potential to impact differently upon migration success. The inshore marine coastal zone is arguably disproportionately impacted by potential stressors o…
View article: Genotype But Not Body Shape Predicts River Migration Success in Atlantic Salmon
Genotype But Not Body Shape Predicts River Migration Success in Atlantic Salmon Open
Migratory species typically undertake demanding long‐distance journeys, across different habitat types during which they are exposed to multiple natural and anthropogenic stressors. Mortality during migration is typically high and may be h…
View article: Complex landscape, instream and anthropogenic environmental features drive genetic and morphological structuring amongst brown trout (Salmo trutta) populations in a dendritic river system
Complex landscape, instream and anthropogenic environmental features drive genetic and morphological structuring amongst brown trout (Salmo trutta) populations in a dendritic river system Open
Untangling the patterns and proximate drivers of intraspecific genetic and phenotypic structuring informs our understanding of the evolutionary processes shaping diversity. This study investigated morphological and genetic structuring of b…
View article: Lake shape and the characteristics of migration behavior modify Atlantic salmon smolt migration success through lakes
Lake shape and the characteristics of migration behavior modify Atlantic salmon smolt migration success through lakes Open
Migration is a high‐risk behavior. For the Atlantic salmon, Salmo salar , migrating from its river nursery area to marine feeding grounds, the magnitude of risk varies with habitat type. Passage through lakes, in particular, is associated …
View article: Downstream Migration Success of Atlantic Salmon Smolts in a River Catchment Highly Fragmented by Hydroelectric Impoundments
Downstream Migration Success of Atlantic Salmon Smolts in a River Catchment Highly Fragmented by Hydroelectric Impoundments Open
Riverine habitat fragmentation by barriers, including impoundments, is common and their effects on obligate aquatic organisms are manifold. Organisms, such as Atlantic salmon ( Salmo salar ), that make extensive river migrations are partic…
View article: The effect of downstream translocation on <scp>Atlantic</scp> salmon <i>Salmo salar</i> smolt outmigration success
The effect of downstream translocation on <span>Atlantic</span> salmon <i>Salmo salar</i> smolt outmigration success Open
Trap and transport, the capture and subsequent translocation of fish during the freshwater phase of their migration, is becoming more common as a management intervention. Although the technique can be successful, it is costly and can have …
View article: Determinants of riverine migration success by Atlantic salmon (<i>Salmo salar</i>) smolts from rivers across the <scp>UK</scp> and Ireland
Determinants of riverine migration success by Atlantic salmon (<i>Salmo salar</i>) smolts from rivers across the <span>UK</span> and Ireland Open
There is some evidence that the river migration success of Atlantic salmon smolts, on their first migration to sea, varies both spatially and temporally. However, we have only a poor understanding of what may be driving this variation. In …
View article: Assessing the potential of acoustic telemetry to underpin the regional management of basking sharks (Cetorhinus maximus)
Assessing the potential of acoustic telemetry to underpin the regional management of basking sharks (Cetorhinus maximus) Open
Acoustic telemetry can provide valuable space-use data for a range of marine species. Yet the deployment of species-specific arrays over vast areas to gather data on highly migratory vertebrates poses formidable challenges, often rendering…
View article: Inshore and offshore marine migration pathways of Atlantic salmon post‐smolts from multiple rivers in Scotland, England, Northern Ireland, and Ireland
Inshore and offshore marine migration pathways of Atlantic salmon post‐smolts from multiple rivers in Scotland, England, Northern Ireland, and Ireland Open
The migratory behavior of Atlantic salmon ( Salmo salar ) post‐smolts in coastal waters is poorly understood. In this collaborative study, 1914 smolts, from 25 rivers, in four countries were tagged with acoustic transmitters during a singl…
View article: Migration patterns and navigation cues of <scp>Atlantic</scp> salmon post‐smolts migrating from 12 rivers through the coastal zones around the <scp>Irish Sea</scp>
Migration patterns and navigation cues of <span>Atlantic</span> salmon post‐smolts migrating from 12 rivers through the coastal zones around the <span>Irish Sea</span> Open
The freshwater phase of the first seaward migration of juvenile Atlantic salmon ( Salmo salar ) is relatively well understood when compared with our understanding of the marine phase of their migration. In 2021, 1008 wild and 60 ranched At…
View article: Smolting in post‐sexually mature male Atlantic salmon (<i>Salmo salar</i> L.) parr in the wild
Smolting in post‐sexually mature male Atlantic salmon (<i>Salmo salar</i> L.) parr in the wild Open
Conflicts can arise in developmental pathways that prevent an individual entering different developmental life stages that result in the expression of different phenotypes within a specific time period. In salmonids, theory suggests that s…
View article: Is shape in the eye of the beholder? Assessing landmarking error in geometric morphometric analyses on live fish
Is shape in the eye of the beholder? Assessing landmarking error in geometric morphometric analyses on live fish Open
Geometric morphometrics is widely used to quantify morphological variation between biological specimens, but the fundamental influence of operator bias on data reproducibility is rarely considered, particularly in studies using photographs…
View article: Individual genotype but not phenotype predicts river migration success in Atlantic salmon
Individual genotype but not phenotype predicts river migration success in Atlantic salmon Open
Migratory species typically undertake demanding long-distance journeys, across different habitat types during which they are exposed to multiple natural and anthropogenic stressors. Mortality during migration is typically high, and may be …
View article: Is shape in the eye of the beholder? Assessing landmarking error in geometric morphometric analyses on live fish
Is shape in the eye of the beholder? Assessing landmarking error in geometric morphometric analyses on live fish Open
Geometric morphometrics is widely used to quantify morphological variation between biological specimens, but the fundamental influence of operator bias on data reproducibility is rarely considered, particularly in studies using photographs…
View article: Investigating the behaviour of <scp>Atlantic</scp> salmon (<i>Salmo salar</i> L.) post‐smolts during their early marine migration through the Clyde Marine Region
Investigating the behaviour of <span>Atlantic</span> salmon (<i>Salmo salar</i> L.) post‐smolts during their early marine migration through the Clyde Marine Region Open
It is thought that survival during migration is particularly poor for Atlantic salmon post‐smolts immediately after entry into sea and particularly in the estuarine environment. Nonetheless, there is currently a lack of information on Atla…
View article: An opinion piece: the evolutionary and ecological consequences of changing selection pressures on marine migration in Atlantic salmon
An opinion piece: the evolutionary and ecological consequences of changing selection pressures on marine migration in Atlantic salmon Open
There are strong signals that the selection forces favouring the expression of long‐distance sea migration by Atlantic salmon ( Salmo salar ) are changing. Unlike many other behavioural traits, the costs of migration are incurred before an…
View article: Genetic structuring across alternative life‐history tactics and small spatial scales in brown trout (<i>Salmo trutta</i>)
Genetic structuring across alternative life‐history tactics and small spatial scales in brown trout (<i>Salmo trutta</i>) Open
Facultative migration occurs when, in response to prevailing conditions, individuals in a population may (or may not) undertake a migration. The brown trout ( Salmo trutta ) is a species that exhibits facultative migration, where some indi…