Jamie R. Dodd
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View article: Migration Delays at Head-of-Tide Weirs are a Function of Tidal Cycles and River Flows in Anadromous Twaite Shad Alosa fallax
Migration Delays at Head-of-Tide Weirs are a Function of Tidal Cycles and River Flows in Anadromous Twaite Shad Alosa fallax Open
Riverine barriers can have significant negative impacts on the spawning migrations of anadromous fishes, with barriers of low passage efficiency limiting access to upstream spawning areas. Even fish that pass a barrier can be negatively af…
View article: Contrasting responses to riverine barrier modification and fish pass provision in two anadromous non‐salmonid species during their spawning migrations
Contrasting responses to riverine barrier modification and fish pass provision in two anadromous non‐salmonid species during their spawning migrations Open
Anthropogenic in‐river structures represent barriers to migrating fishes. Fish pass designs usually focus on passing anadromous salmonids, and fish pass studies usually focus on site‐scale metrics, failing to consider the wider effects. We…
View article: Correction: Tracking repeat spawning anadromous fish migrations over multiple years in a fragmented river suggests philopatry and sex‑linked variation in space use
Correction: Tracking repeat spawning anadromous fish migrations over multiple years in a fragmented river suggests philopatry and sex‑linked variation in space use Open
View article: Restoration of river connectivity enables long-distance spawning migrations in a potamodromous fish
Restoration of river connectivity enables long-distance spawning migrations in a potamodromous fish Open
Rivers across the world are increasingly fragmented due to anthropogenic barriers, with the restoration of connectivity often using fish passes. Fish passes are, however, usually designed for anadromous species, despite ecologically import…
View article: Spatial ecology and population dynamics of brown trout <i>Salmo trutta</i> L. in reservoirs and headwater tributaries
Spatial ecology and population dynamics of brown trout <i>Salmo trutta</i> L. in reservoirs and headwater tributaries Open
This investigation compared the spatial ecology and population dynamics of brown trout Salmo trutta L. between reservoirs with (impact; Langsett Reservoir) and without (control; Grimwith Reservoir) barriers to fish movements into headwater…
View article: Factors influencing European river lamprey passage at a tidal river barrier
Factors influencing European river lamprey passage at a tidal river barrier Open
View article: Genetic consequences of improved river connectivity in brown trout ( <i>Salmo trutta</i> L.)
Genetic consequences of improved river connectivity in brown trout ( <i>Salmo trutta</i> L.) Open
Fragmentation of watercourses poses a significant threat to biodiversity, particularly for migratory fish species. Mitigation measures such as fishways, have been increasingly implemented to restore river connectivity and support fish migr…
View article: Emigration of post‐spawned twaite shad <i>Alosa fallax</i>, an anadromous and iteroparous fish, in a highly fragmented river
Emigration of post‐spawned twaite shad <i>Alosa fallax</i>, an anadromous and iteroparous fish, in a highly fragmented river Open
Anthropogenic barriers are widely known to negatively impact the spawning migrations of anadromous fishes, by delaying or preventing passage upstream. Although the impacts of barriers on emigrating post‐spawned adults are less well studied…
View article: Tracking repeat spawning anadromous fish migrations over multiple years in a fragmented river suggests philopatry and sex-linked variation in space use
Tracking repeat spawning anadromous fish migrations over multiple years in a fragmented river suggests philopatry and sex-linked variation in space use Open
View article: Spatial ecology and population dynamics of brown trout<i>Salmo trutta</i>L. in reservoirs and headwater tributaries
Spatial ecology and population dynamics of brown trout<i>Salmo trutta</i>L. in reservoirs and headwater tributaries Open
This investigation compared the spatial ecology and population dynamics of brown trout Salmo trutta L . between reservoirs with (impact; Langsett Reservoir) and without (control; Grimwith Reservoir) barriers to fish movements into afferent…
View article: Can't pass or won't pass: the importance of motivation when quantifying improved connectivity for riverine brown trout <scp><i>Salmo trutta</i></scp>
Can't pass or won't pass: the importance of motivation when quantifying improved connectivity for riverine brown trout <span><i>Salmo trutta</i></span> Open
Reversing the negative impacts that anthropogenic habitat fragmentation has on animal movement is a key goal in the management of landscapes and conservation of species globally. Accurate assessment of measures to remediate habitat fragmen…
View article: Genetic consequences of improved river connectivity in brown trout (<i>Salmo trutta</i>, L.)
Genetic consequences of improved river connectivity in brown trout (<i>Salmo trutta</i>, L.) Open
Fragmentation of watercourses poses a significant threat to biodiversity, particularly for migratory fish species. Mitigation measures such as fishways, have been increasingly implemented to restore river connectivity and support fish migr…
View article: Catchment-wide interactive effects of anthropogenic structures and river levels on fish spawning migrations
Catchment-wide interactive effects of anthropogenic structures and river levels on fish spawning migrations Open
Worldwide, rivers are extensively fragmented by anthropogenic structures, reducing longitudinal connectivity, inhibiting migration and leading to severe declines in many fish populations, especially for diadromous species. However, few stu…
View article: Seascape genomics reveals limited dispersal and suggests spatially varying selection among European populations of sea lamprey ( <i>Petromyzon marinus</i> )
Seascape genomics reveals limited dispersal and suggests spatially varying selection among European populations of sea lamprey ( <i>Petromyzon marinus</i> ) Open
Sea lamprey Petromyzon marinus is an anadromous and semelparous fish without homing behaviors. Despite being a freshwater, free‐living organism for a large part of their life cycle, its adulthood is spent as a parasite of marine vertebrate…
View article: Acoustic telemetry informs conditional capture probability of an anadromous fish
Acoustic telemetry informs conditional capture probability of an anadromous fish Open
Information on movement ecology and susceptibility to fishing gears is becoming increasingly employed in the management of commercial fisheries. This study combined acoustic telemetry (n = 51 and 52) and a simple passive integrated transpo…
View article: Using acoustic tracking of an anadromous lamprey in a heavily fragmented river to assess current and historic passage opportunities and prioritise remediation
Using acoustic tracking of an anadromous lamprey in a heavily fragmented river to assess current and historic passage opportunities and prioritise remediation Open
Anthropogenic structures extensively fragment riverine systems, reducing longitudinal connectivity, inhibiting migration and leading to severe declines in many fish populations, especially for diadromous species. This study investigated th…
View article: Tracking anadromous fish over successive freshwater migrations reveals the influence of tagging effect, previous success, and abiotic factors on upstream passage over barriers
Tracking anadromous fish over successive freshwater migrations reveals the influence of tagging effect, previous success, and abiotic factors on upstream passage over barriers Open
Predicting and mitigating the impact of anthropogenic barriers on migratory fish requires an understanding of the individual and environmental factors that influence barrier passage. Here, the upstream spawning migrations of iteroparous tw…
View article: Understanding the impact of barriers to onward migration; a novel approach using translocated fish
Understanding the impact of barriers to onward migration; a novel approach using translocated fish Open
River catchments worldwide are heavily fragmented by anthropogenic barriers, reducing their longitudinal connectivity and contributing to the decline of migratory fish populations. Direct impacts of individual barriers on migratory fish ar…
View article: Individual repeatability in the timing of river entry indicates the strong influence of photoperiod in the spawning migrations of iteroparous twaite shad Alosa fallax
Individual repeatability in the timing of river entry indicates the strong influence of photoperiod in the spawning migrations of iteroparous twaite shad Alosa fallax Open
The timing of entry into freshwater by mature anadromous fishes is an important component of their migration phenology. In iteroparous anadromous species, identifying the migration cues that influence the timing of entry into freshwater, a…
View article: Seascape genomics reveals limited dispersal and suggest spatially varying selection among European populations of sea lamprey (<i>Petromyzon marinus</i>)
Seascape genomics reveals limited dispersal and suggest spatially varying selection among European populations of sea lamprey (<i>Petromyzon marinus</i>) Open
Sea lamprey Petromyzon marinus is an anadromous and semelparous fish without homing behaviours. Despite being a freshwater, free-living organism for large part of their life cycle, its adulthood is spent as a parasite of marine vertebrates…
View article: Individual movement variation in upstream‐migrating sea lamprey <i>Petromyzon marinus</i> in a highly fragmented river
Individual movement variation in upstream‐migrating sea lamprey <i>Petromyzon marinus</i> in a highly fragmented river Open
Anthropogenic reductions in riverine connectivity can severely impede the migrations of anadromous species. In fragmented rivers, successful migrations depend on the ability of migrants to negotiate barriers or locate alternative passage r…
View article: Cumulative impacts of habitat fragmentation and the environmental factors affecting upstream migration in the threatened sea lamprey, <scp><i>Petromyzon marinus</i></scp>
Cumulative impacts of habitat fragmentation and the environmental factors affecting upstream migration in the threatened sea lamprey, <span><i>Petromyzon marinus</i></span> Open
River ecosystems are often fragmented by artificial structures, such as weirs. For anadromous species, these structures can impede access to upstream spawning sites and ultimately lead to severe population declines. This study focused on t…
View article: Novel insights into the marine phase and river fidelity of anadromous twaite shad <scp><i>Alosa fallax</i></scp> in the UK and Ireland
Novel insights into the marine phase and river fidelity of anadromous twaite shad <span><i>Alosa fallax</i></span> in the UK and Ireland Open
Most research on anadromous fishes has been invested in their freshwater life‐phases, resulting in a relatively sparse understanding of their spatial ecology during marine life‐phases. However, understanding the marine dispersal of anadrom…
View article: Refinement of acoustic-tagging protocol for twaite shad Alosa fallax (Lacépède), a species sensitive to handling and sedation
Refinement of acoustic-tagging protocol for twaite shad Alosa fallax (Lacépède), a species sensitive to handling and sedation Open
© 2018 Elsevier B.V. Telemetry investigations to gather essential information about fish migrations are reliant on the behaviour, condition and survival of the animals being unaltered by the tagging procedure. Twaite shad (Alosa fallax Lac…
View article: Upstream passage of adult sea trout (Salmo trutta) at a low-head weir with an Archimedean screw hydropower turbine and co-located fish pass
Upstream passage of adult sea trout (Salmo trutta) at a low-head weir with an Archimedean screw hydropower turbine and co-located fish pass Open
The exploitation of riverine systems for renewable energy has resulted in large numbers of small-scale hydropower schemes on low-head weirs. Although considered a clean and ‘green’ energy source in terms of emissions, hydropower can affect…
View article: Win, win, win: Low cost baffle fish pass provides improved passage efficiency, reduced passage time and broadened passage flows over a low-head weir
Win, win, win: Low cost baffle fish pass provides improved passage efficiency, reduced passage time and broadened passage flows over a low-head weir Open
The number of low-head barriers to fish migration far outweighs the number of large magnitude barriers and thus the cumulative negative impact on fish communities could also be far greater. Removal of man-made obstructions to fish migratio…
View article: Efficiency of a nature-like bypass channel for restoring longitudinal connectivity for a river-resident population of brown trout
Efficiency of a nature-like bypass channel for restoring longitudinal connectivity for a river-resident population of brown trout Open
Man-made, physical barriers have disrupted longitudinal connectivity for migratory fish in many river systems throughout the world for centuries. These barriers are considered to be a key reason for the decline of many fish species in rive…
View article: Session B8: Changes in Fish Passage Metrics Following the Co-Location of a Low-Head Hydropower Turbine with an Existing Fish Pass; Revealed by an Acoustic Tracking Study of Migratory Salmonids
Session B8: Changes in Fish Passage Metrics Following the Co-Location of a Low-Head Hydropower Turbine with an Existing Fish Pass; Revealed by an Acoustic Tracking Study of Migratory Salmonids Open
\nCo-location of hydropower turbine outfalls with fish pass entrances has been suggested as current best practice to optimise the attraction flows for the fish pass and to mitigate the perceived negative impacts of small run-of-river hydro…
View article: Session B4: Fine-Scale 2D Acoustic Tracking of the Behaviour of Salmonids to Investigate Delays and Failures in Fish Passage; Implications for Assessing the Efficiency of Fish Passes
Session B4: Fine-Scale 2D Acoustic Tracking of the Behaviour of Salmonids to Investigate Delays and Failures in Fish Passage; Implications for Assessing the Efficiency of Fish Passes Open
\nMany studies of fish passage are limited to consideration of coarse scale efficiency metrics; however the level of resolution they have for explaining changes in these metrics is often limited. In many cases assessments of fish pass perf…
View article: Session B5: Efficiency of a Nature-Like Bypass Channel at Rodley Weir, River Aire
Session B5: Efficiency of a Nature-Like Bypass Channel at Rodley Weir, River Aire Open
\nMan-made physical barriers (weirs) have disrupted longitudinal connectivity in many river systems around the world for centuries. Impacts of weirs on fish communities centers on the reduced ability of fish to perform upstream migrations.…