Stakėnas, S., Gregory, S. D., Britton, J. R., Marsh, J. E., Tarkan, A. S., Zięba, G., Wesley, K. J. and Copp, G. H., 2024. Tracking the invasive and euryhaline pikeperch Sander lucioperca in the lower River Thames using acoustic telemetry indicates no movements into areas of relatively high salinity. Journal of Fish Biology. (In Press)
Full text available as:
|
PDF (OPEN ACCESS ARTICLE)
Journal of fish biology.pdf - Published Version Available under License Creative Commons Attribution. 1MB | |
Copyright to original material in this document is with the original owner(s). Access to this content through BURO is granted on condition that you use it only for research, scholarly or other non-commercial purposes. If you wish to use it for any other purposes, you must contact BU via BURO@bournemouth.ac.uk. Any third party copyright material in this document remains the property of its respective owner(s). BU grants no licence for further use of that third party material. |
DOI: 10.1111/jfb.15882
Abstract
Native to Central and Eastern Europe, the euryhaline pikeperch Sander lucioperca can acclimatize to elevated salinity levels (e.g., up to 30‰), but it remains unknown whether their invasive populations use this ability to inhabit and/or disperse through brackish waters, such as estuaries and inshore areas. To test whether invasive pikeperch show a propensity to move into areas of relatively high salinity, their spatial use and movement patterns (e.g., home range, distances moved, and movement rates) were assessed using acoustic telemetry in the upper River Thames estuary, southeast England. Analyses revealed that individual pikeperch were capable of moving relatively long distances in a short time (e.g., speeds up to 70 m min-1), with movement patterns associated more with tidal state and elevation at the water surface (both assumed to relate to changes in salinity) than diurnal changes. There were no recorded movements of any pikeperch into the more saline, downstream waters of the estuary where salinity levels were recorded to over 40‰, with the mean salinity in the most downstream area where pikeperch were detected being 1.39‰ (range of logger: 1.22-1.71). The results suggest that these pikeperch did not use high salinity waters when less saline waters were available, and thus the risk that they will use to move through high salinity areas to expand their invasive range appears low. Accordingly, efforts to minimize risks of the further dispersal of invasive pikeperch populations can focus on control and containment programmes within fresh waters.
Item Type: | Article |
---|---|
ISSN: | 0022-1112 |
Uncontrolled Keywords: | acoustic telemetry; direction traveled; distance traveled; tidal state; zander |
Group: | Faculty of Science & Technology |
ID Code: | 40205 |
Deposited By: | Symplectic RT2 |
Deposited On: | 29 Jul 2024 15:32 |
Last Modified: | 29 Jul 2024 15:32 |
Downloads
Downloads per month over past year
Repository Staff Only - |