Upstream spawning migration of river lamprey (Lampetra fluviatilis) in the River Trent, 2020-2021

Noble, Richard A. A.; Bolland, Jonathan D.; Jubb, William M.; Nunn, Andy D.; Dodd, Jamie R.

Abstract

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 UK. River lamprey released upstream (n = 16) and downstream (n = 15) of Cromwell Weir were tracked from the upper estuary (Keadby) to upstream of the fourth weir encountered (Gunthorpe Weir). Receivers were also located in the Yorkshire Ouse catchment, which joins with the Trent at Trent Falls (to create the Humber Estuary). Overall, this study quantified river lamprey migration, spawning habitat distribution and historic river levels to develop a novel empirical index to understand the impact of man-made barriers and prioritise their remediation.

The geographical coverage for this project covered the river Trent, from Keadby to upstream of the fourth weir encountered (Gunthorpe Weir). Also included receivers in the River Yorkshire Ouse up to the first weir encountered in the main river (Naburn Weir) and the River Wharfe up to the fourth weir encountered (Wetherby Weir).

Citation

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

• Online Publication Date: Mar 30, 2023
• Publication Date: Mar 30, 2023
• Deposit Date: Aug 17, 2024
• DOI: https://doi.org/10.14284/598
• Public URL: https://hull-repository.worktribe.com/output/4789099
• Publisher URL: https://www.vliz.be/en/imis?dasid=8139&doiid=811
• Collection Date: May 19, 2021
• Additional Information: This work is licensed under http://vocab.nerc.ac.uk/collection/L08/current/MO meaning it is under moratorium until 2024-11-05