Relationship between European eel Anguilla anguilla infection with non-native parasites and swimming behaviour on encountering accelerating flow
Relationship between European eel Anguilla anguilla infection with non-native parasites and swimming behaviour on encountering accelerating flow
The effect of Anguillicola crassus, Pseudodactylogyrus bini and Pseudodactylogyrus anguillae infection on the behaviour of downstream migrating adult European eels Anguilla anguilla as they encountered accelerating water velocity, common at engineered structures where flow is constricted (e.g. weirs and bypass systems), was evaluated in an experimental flume. The probability of reacting to, and rejecting, the velocity gradient was positively related to A. crassus larval, adult and total abundance. High abundance of Pseudodactylogyrus spp. reduced this effect, but A. crassus was the strongest parasitic factor associated with fish behaviour, and abundance was positively related to delay in downstream passage. Delayed downstream migration at hydraulic gradients associated with riverine anthropogenic structures could result in additional energetic expenditure for migrating A. anguilla already challenged by A. crassus infection.
anguillicola crassus, anguilliformes, barriers, migration, seudodactylogyrus anguillae, pseudodactylogyrus bini
1519-1533
Newbold, L.R.
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Hockley, F.A.
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Williams, C.F.
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Cable, J.
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Reading, A.J.
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Auchterlonie, N.
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Kemp, P.S.
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May 2015
Newbold, L.R.
aa48f87e-fcf0-4a7e-a9c9-98437c2a4585
Hockley, F.A.
72f9f312-38d0-465a-8089-727d8577d2ac
Williams, C.F.
e26b8ae9-0ce3-4506-a711-1423e993e061
Cable, J.
184005ac-62c5-4c86-ade5-c0f5fb192308
Reading, A.J.
a70a3fce-bad0-4a1c-8852-d1746fb85d07
Auchterlonie, N.
43872082-1a04-4a1d-8d22-7ecff83b7f62
Kemp, P.S.
9e33fba6-cccf-4eb5-965b-b70e72b11cd7
Newbold, L.R., Hockley, F.A., Williams, C.F., Cable, J., Reading, A.J., Auchterlonie, N. and Kemp, P.S.
(2015)
Relationship between European eel Anguilla anguilla infection with non-native parasites and swimming behaviour on encountering accelerating flow.
Journal of Fish Biology, 86 (5), .
(doi:10.1111/jfb.12659).
(PMID:25801939)
Abstract
The effect of Anguillicola crassus, Pseudodactylogyrus bini and Pseudodactylogyrus anguillae infection on the behaviour of downstream migrating adult European eels Anguilla anguilla as they encountered accelerating water velocity, common at engineered structures where flow is constricted (e.g. weirs and bypass systems), was evaluated in an experimental flume. The probability of reacting to, and rejecting, the velocity gradient was positively related to A. crassus larval, adult and total abundance. High abundance of Pseudodactylogyrus spp. reduced this effect, but A. crassus was the strongest parasitic factor associated with fish behaviour, and abundance was positively related to delay in downstream passage. Delayed downstream migration at hydraulic gradients associated with riverine anthropogenic structures could result in additional energetic expenditure for migrating A. anguilla already challenged by A. crassus infection.
Text
Newbold_et_al-2015-Journal_of_Fish_Biology.pdf
- Accepted Manuscript
More information
Accepted/In Press date: 5 February 2015
e-pub ahead of print date: 20 March 2015
Published date: May 2015
Keywords:
anguillicola crassus, anguilliformes, barriers, migration, seudodactylogyrus anguillae, pseudodactylogyrus bini
Organisations:
Water & Environmental Engineering Group
Identifiers
Local EPrints ID: 376981
URI: http://eprints.soton.ac.uk/id/eprint/376981
ISSN: 0022-1112
PURE UUID: e2eb2e77-59f3-48fa-9314-afb9a87f5b90
Catalogue record
Date deposited: 12 May 2015 09:18
Last modified: 15 Mar 2024 03:21
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Contributors
Author:
L.R. Newbold
Author:
F.A. Hockley
Author:
C.F. Williams
Author:
J. Cable
Author:
A.J. Reading
Author:
N. Auchterlonie
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