All Outputs (68)

Larval and juvenile fish abundance, habitat, water quality, flow and climate data from English rivers, 1984-2017 (2025)
Data
(2025). Larval and juvenile fish abundance, habitat, water quality, flow and climate data from English rivers, 1984-2017. [Data]. https://doi.org/10.5285/c904c5f0-7f21-4759-a7d4-c262da230b53

This dataset contains monthly/annual time series of species-specific abundances and covariates for 137 targeted larval/juvenile fish surveys at sites in a range of English lowland rivers. Larval/juvenile fish data come from two different sources: The... Read More about Larval and juvenile fish abundance, habitat, water quality, flow and climate data from English rivers, 1984-2017.

Spatial ecology and population dynamics of brown trout Salmo trutta L. in reservoirs and headwater tributaries (2024)
Journal Article
Dodd, J. R., Noble, R. A., Nunn, A. D., Owen, H. M., Moccetti, P., Harvey, J. P., Wallace, L., Gillespie, B., Joyce, D. A., & Bolland, J. D. (online). Spatial ecology and population dynamics of brown trout Salmo trutta L. in reservoirs and headwater tributaries. Journal of fish biology, https://doi.org/10.1111/jfb.15814

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 tributarie... Read More about Spatial ecology and population dynamics of brown trout Salmo trutta L. in reservoirs and headwater tributaries.

Fish abundance, habitat, water quality, flow and climate data from English rivers,1975-2017 (2024)
Data
Ainsworth, R., Keller, V., Bachiller- Jareno, N., Jürgens, M., Eastman, M., Sadykova, D., Rizzo, C., Scarlett, P., Peirson, G., Eley, F., Antoniou, V., Cowx, I., Johnson, A., & Nunn, A. (2024). Fish abundance, habitat, water quality, flow and climate data from English rivers,1975-2017. [Data]. https://doi.org/10.5285/b0afb78e-a0cb-4762-9220-659211ae3a5e

This dataset contains a time series of species-specific fish abundances and covariates for 1180 fish sites in English rivers. Sites with at least ten annual fish surveys in the Environment Agency’s (EA) National Fish Population Database (NFPD) betwee... Read More about Fish abundance, habitat, water quality, flow and climate data from English rivers,1975-2017.

Genetic consequences of improved river connectivity in brown trout (Salmo trutta L.) (2024)
Journal Article
Moccetti, P., Dodd, J. R., Joyce, D. A., Nunn, A. D., Gillespie, B., & Bolland, J. D. (2024). Genetic consequences of improved river connectivity in brown trout (Salmo trutta L.). Evolutionary Applications, 17(4), Article e13660. https://doi.org/10.1111/eva.13660

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 migration. The... Read More about Genetic consequences of improved river connectivity in brown trout (Salmo trutta L.).

Tracking repeat spawning anadromous fish migrations over multiple years in a fragmented river suggests philopatry and sex-linked variation in space use (2024)
Journal Article
Davies, P., Britton, J. R., Andreou, D., Crundwell, C., Dodd, J. R., Lepais, O., Nunn, A. D., Sabatino, S., Velterop, R., & Bolland, J. D. (2024). Tracking repeat spawning anadromous fish migrations over multiple years in a fragmented river suggests philopatry and sex-linked variation in space use. Aquatic sciences, 86(2), https://doi.org/10.1007/s00027-024-01048-z

There is limited knowledge of how philopatry influences the spatial ecology of iteroparous anadromous species during their spawning migrations, but this knowledge is important in understanding population responses to interventions such as river recon... Read More about Tracking repeat spawning anadromous fish migrations over multiple years in a fragmented river suggests philopatry and sex-linked variation in space use.

Emigration of post-spawned twaite shad Alosa fallax, an anadromous and iteroparous fish, in a highly fragmented river (2024)
Journal Article
Yeldham, M. I., Britton, J. R., Crundwell, C., Davies, P., Dodd, J. R., Nunn, A. D., …Bolland, J. D. (2024). Emigration of post-spawned twaite shad Alosa fallax, an anadromous and iteroparous fish, in a highly fragmented river. Journal of fish biology, https://doi.org/10.1111/jfb.15713

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, they coul... Read More about Emigration of post-spawned twaite shad Alosa fallax, an anadromous and iteroparous fish, in a highly fragmented river.

Factors influencing European river lamprey passage at a tidal river barrier (2024)
Journal Article
Lothian, A. J., Bolland, J. D., Albright, A. J., Jubb, W. M., Bubb, D. H., Noble, R. A., Nunn, A. D., Dodd, J. R., Tummers, J. S., & Lucas, M. C. (2024). Factors influencing European river lamprey passage at a tidal river barrier. Hydrobiologia, https://doi.org/10.1007/s10750-024-05633-z

Understanding and improving passage by diadromous species at tidal barriers is less well advanced than that for non-tidal anthropogenic river barriers. This study assessed factors affecting upstream passage of anadromous river lamprey (Lampetra fluvi... Read More about Factors influencing European river lamprey passage at a tidal river barrier.

The genome sequence of the stone loach, Barbatula barbatula (Linnaeus, 1758) (2023)
Journal Article
Hänfling, B., Nunn, A. D., Moccetti, P., & Darwin Tree of Life Consortium. (2023). The genome sequence of the stone loach, Barbatula barbatula (Linnaeus, 1758). Wellcome Open Research, 8, Article 518. https://doi.org/10.12688/wellcomeopenres.20293.1

We present a genome assembly from an individual female Barbatula barbatula (the stone loach; Chordata; Actinopteri; Cypriniformes; Nemacheilidae). The genome sequence is 617.6 megabases in span. Most of the assembly is scaffolded into 25 chromosomal... Read More about The genome sequence of the stone loach, Barbatula barbatula (Linnaeus, 1758).

Extinction risks and threats facing the freshwater fishes of Britain (2023)
Journal Article
Nunn, A. D., Ainsworth, R. F., Walton, S., Bean, C. W., Hatton-Ellis, T. W., Brown, A., Evans, R., Atterborne, A., Ottewell, D., & Noble, R. A. (in press). Extinction risks and threats facing the freshwater fishes of Britain. Aquatic conservation : marine and freshwater ecosystems, https://doi.org/10.1002/aqc.4014

Extinctions occur naturally in all environments, but rates have accelerated rapidly during the Anthropocene, especially in fresh water. Despite supporting many fish species of conservation importance, there has never been a formal assessment of their... Read More about Extinction risks and threats facing the freshwater fishes of Britain.

Regional IUCN Redlist for Freshwater and Diadromous Fishes of Great Britain (England, Scotland and Wales) (2023)
Data
Nunn, A., Ainsworth, R., & Noble, R. (2023). Regional IUCN Redlist for Freshwater and Diadromous Fishes of Great Britain (England, Scotland and Wales). [Data]. https://doi.org/10.5281/zenodo.7940246

A regional IUCN redlist assessment of extinction risk for freshwater and diadromous fishes in Great Britain, including assessments for Engand, Scotland and Wales. The dataset comprises summary data for assessments under Criteria A-E and narratives to... Read More about Regional IUCN Redlist for Freshwater and Diadromous Fishes of Great Britain (England, Scotland and Wales).

Upstream spawning migration of river lamprey (Lampetra fluviatilis) in the River Yorkshire Ouse, 2018-2020 (2023)
Data
Bolland, J. D., Jubb, W. M., Noble, R. A. A., Nunn, A. D., Dodd, J. R., Lucas, M. C., Lothian, A. J., Bubb, D. H., & Albright, A. J. (2023). Upstream spawning migration of river lamprey (Lampetra fluviatilis) in the River Yorkshire Ouse, 2018-2020. [Data]. https://doi.org/10.14284/623

This study investigated the upstream spawning migration of anadromous river lamprey in the Yorkshire Ouse, a highly dendritic and heavily fragmented tributary of the Humber Estuary (home to one of the largest UK river lamprey populations). The main E... Read More about Upstream spawning migration of river lamprey (Lampetra fluviatilis) in the River Yorkshire Ouse, 2018-2020.

Catchment-wide interactive effects of anthropogenic structures and river levels on fish spawning migrations (2023)
Journal Article
Jubb, W. M., Noble, R. A., Dodd, J. R., Nunn, A. D., Schirrmacher, P., Lothian, A. J., …Bolland, J. D. (2023). Catchment-wide interactive effects of anthropogenic structures and river levels on fish spawning migrations. Anthropocene, 43, Article 100400. https://doi.org/10.1016/j.ancene.2023.100400

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 studies have d... Read More about Catchment-wide interactive effects of anthropogenic structures and river levels on fish spawning migrations.

Seascape genomics reveals limited dispersal and suggests spatially varying selection among European populations of sea lamprey (Petromyzon marinus) (2023)
Journal Article
Baltazar-Soares, M., Britton, J. R., Pinder, A., Harrison, A. J., Nunn, A. D., Quintella, B. R., …Andreou, D. (2023). Seascape genomics reveals limited dispersal and suggests spatially varying selection among European populations of sea lamprey (Petromyzon marinus). Evolutionary Applications, 16(6), 1169-1183. https://doi.org/10.1111/eva.13561

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 vertebrates. In their... Read More about Seascape genomics reveals limited dispersal and suggests spatially varying selection among European populations of sea lamprey (Petromyzon marinus).

Acoustic telemetry informs conditional capture probability of an anadromous fish (2023)
Journal Article
Jubb, W. M., Noble, R. A., Dodd, J. R., Nunn, A. D., Lothian, A. J., Albright, A. J., …Bolland, J. D. (2023). Acoustic telemetry informs conditional capture probability of an anadromous fish. Fisheries research, 264, Article 106737. https://doi.org/10.1016/j.fishres.2023.106737

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 transponder (PIT)... Read More about Acoustic telemetry informs conditional capture probability of an anadromous fish.

Using acoustic tracking of an anadromous lamprey in a heavily fragmented river to assess current and historic passage opportunities and prioritise remediation (2023)
Journal Article
Jubb, W. M., Noble, R. A., Dodd, J. R., Nunn, A. D., & Bolland, J. D. (in press). Using acoustic tracking of an anadromous lamprey in a heavily fragmented river to assess current and historic passage opportunities and prioritise remediation. River Research and Applications, https://doi.org/10.1002/rra.4140

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 the upstream... Read More about Using acoustic tracking of an anadromous lamprey in a heavily fragmented river to assess current and historic passage opportunities and prioritise remediation.

Upstream spawning migration of river lamprey (Lampetra fluviatilis) in the River Trent, 2020-2021 (2023)
Data
Noble, R. A. A., Bolland, J. D., Jubb, W. M., Nunn, A. D., & Dodd, J. R. (2023). Upstream spawning migration of river lamprey (Lampetra fluviatilis) in the River Trent, 2020-2021. [Data]. https://doi.org/10.14284/598

This study investigated the upstream spawning migration of anadromous river lamprey (Lampetra fluviatilis) in the River Trent, a heavily fragmented tributary of the Humber Estuary- the location of one of the largest river lamprey populations in the U... Read More about Upstream spawning migration of river lamprey (Lampetra fluviatilis) in the River Trent, 2020-2021.

Tracking anadromous fish over successive freshwater migrations reveals the influence of tagging effect, previous success, and abiotic factors on upstream passage over barriers (2023)
Journal Article
Davies, P., Robert Britton, J., Castro-Santos, T., Crundwell, C., Dodd, J. R., Nunn, A. D., …Bolland, J. D. (2023). Tracking anadromous fish over successive freshwater migrations reveals the influence of tagging effect, previous success, and abiotic factors on upstream passage over barriers. Canadian journal of fisheries and aquatic sciences, 80(7), 1110-1125. https://doi.org/10.1139/cjfas-2022-0196

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 twaite shad A... Read More about Tracking anadromous fish over successive freshwater migrations reveals the influence of tagging effect, previous success, and abiotic factors on upstream passage over barriers.

Understanding the impact of barriers to onward migration; a novel approach using translocated fish (2023)
Journal Article
Jubb, W. M., Noble, R. A., Dodd, J. R., Nunn, A. D., Lothian, A. J., Albright, A. J., …Bolland, J. D. (2023). Understanding the impact of barriers to onward migration; a novel approach using translocated fish. Journal of environmental management, 335, Article 117488. https://doi.org/10.1016/j.jenvman.2023.117488

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 are well-esta... Read More about Understanding the impact of barriers to onward migration; a novel approach using translocated fish.

Individual repeatability in the timing of river entry indicates the strong influence of photoperiod in the spawning migrations of iteroparous twaite shad Alosa fallax (2023)
Journal Article
Yeldham, M. I., Britton, J. R., Crundwell, C., Davies, P., Dodd, J. R., Nunn, A. D., …Bolland, J. D. (2023). Individual repeatability in the timing of river entry indicates the strong influence of photoperiod in the spawning migrations of iteroparous twaite shad Alosa fallax. Hydrobiologia, https://doi.org/10.1007/s10750-023-05168-9

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, and annual v... Read More about Individual repeatability in the timing of river entry indicates the strong influence of photoperiod in the spawning migrations of iteroparous twaite shad Alosa fallax.

Is shape in the eye of the beholder? Assessing landmarking error in geometric morphometric analyses on live fish (2023)
Journal Article
Moccetti, P., Rodger, J. R., Bolland, J. D., Kaiser-Wilks, P., Smith, R., Nunn, A. D., …Joyce, D. A. (2023). Is shape in the eye of the beholder? Assessing landmarking error in geometric morphometric analyses on live fish. PeerJ, 11, Article e15545. https://doi.org/10.7717/peerj.15545

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 of live an... Read More about Is shape in the eye of the beholder? Assessing landmarking error in geometric morphometric analyses on live fish.