Linking behaviour and performance: intermittent locomotion in a climbing fish
Linking behaviour and performance: intermittent locomotion in a climbing fish
How locomotory performance is influenced by prior experience and behaviour is of adaptive significance. The relationship between kinematics, behaviour and performance was investigated by assessing a previously undescribed mode of climbing locomotion performed by adult Pacific lamprey. The lampreys were challenged with a 1.4?m vertical weir under an experimental setting. The majority of ascents used intermittent bouts of climbing (on an average approximately one-fifth of total ascent time) via powerful cycles of axial undulation at 0.35-1.25?Hz, interspersed with periods of stationary attachment with the oral disk. However, two of the most rapid ascents (57 and 85?s) occurred during one continuous bout at a low cycle frequency (c. 0.38 and 0.50?Hz). Probability of success and ascent time was positively related to experience climbing the weir. The ratio of time spent actively climbing to time spent resting decreased with distance travelled, indicating fatigue. Ascents with long periods of activity had correspondingly high durations of recovery. Moreover, time to ascend was positively related to the proportion of time spent stationary in ascents that took <300?s. The findings suggest that modification of intermittent locomotion allows Pacific lamprey to compensate for variation in climbing performance and can extend distance travelled before exhaustion
lamprey, intermittent locomotion, migration, climbing, performance
171-178
Kemp, P.S.
9e33fba6-cccf-4eb5-965b-b70e72b11cd7
Tsuzaki, T.
5ef31ce1-fe2b-4631-840e-b3577f6eb2a3
Moser, M.L.
07047df0-7be9-460a-b427-ad9b037437c1
February 2009
Kemp, P.S.
9e33fba6-cccf-4eb5-965b-b70e72b11cd7
Tsuzaki, T.
5ef31ce1-fe2b-4631-840e-b3577f6eb2a3
Moser, M.L.
07047df0-7be9-460a-b427-ad9b037437c1
Kemp, P.S., Tsuzaki, T. and Moser, M.L.
(2009)
Linking behaviour and performance: intermittent locomotion in a climbing fish.
Journal of Zoology, 277 (2), .
(doi:10.1111/j.1469-7998.2008.00525.x).
Abstract
How locomotory performance is influenced by prior experience and behaviour is of adaptive significance. The relationship between kinematics, behaviour and performance was investigated by assessing a previously undescribed mode of climbing locomotion performed by adult Pacific lamprey. The lampreys were challenged with a 1.4?m vertical weir under an experimental setting. The majority of ascents used intermittent bouts of climbing (on an average approximately one-fifth of total ascent time) via powerful cycles of axial undulation at 0.35-1.25?Hz, interspersed with periods of stationary attachment with the oral disk. However, two of the most rapid ascents (57 and 85?s) occurred during one continuous bout at a low cycle frequency (c. 0.38 and 0.50?Hz). Probability of success and ascent time was positively related to experience climbing the weir. The ratio of time spent actively climbing to time spent resting decreased with distance travelled, indicating fatigue. Ascents with long periods of activity had correspondingly high durations of recovery. Moreover, time to ascend was positively related to the proportion of time spent stationary in ascents that took <300?s. The findings suggest that modification of intermittent locomotion allows Pacific lamprey to compensate for variation in climbing performance and can extend distance travelled before exhaustion
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Published date: February 2009
Keywords:
lamprey, intermittent locomotion, migration, climbing, performance
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Local EPrints ID: 74105
URI: http://eprints.soton.ac.uk/id/eprint/74105
ISSN: 0952-8369
PURE UUID: 03d3e6b0-565a-4128-a902-f5e9aec7a710
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Date deposited: 11 Mar 2010
Last modified: 14 Mar 2024 02:49
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Author:
T. Tsuzaki
Author:
M.L. Moser
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