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A Foraging Cost of Migration for a Partially Migratory Cyprinid Fish

Chapman, Ben LU ; Eriksen, Anders; Baktoft, Henrik; Brodersen, Jakob; Nilsson, Anders LU ; Hulthén, Kaj LU ; Brönmark, Christer LU ; Hansson, Lars-Anders LU ; Gronkjaer, Peter and Skov, Christian (2013) In PLoS ONE 8(5).
Abstract
Migration has evolved as a strategy to maximise individual fitness in response to seasonally changing ecological and environmental conditions. However, migration can also incur costs, and quantifying these costs can provide important clues to the ultimate ecological forces that underpin migratory behaviour. A key emerging model to explain migration in many systems posits that migration is driven by seasonal changes to a predation/growth potential (p/g) trade-off that a wide range of animals face. In this study we assess a key assumption of this model for a common cyprinid partial migrant, the roach Rutilus rutilus, which migrates from shallow lakes to streams during winter. By sampling fish from stream and lake habitats in the autumn and... (More)
Migration has evolved as a strategy to maximise individual fitness in response to seasonally changing ecological and environmental conditions. However, migration can also incur costs, and quantifying these costs can provide important clues to the ultimate ecological forces that underpin migratory behaviour. A key emerging model to explain migration in many systems posits that migration is driven by seasonal changes to a predation/growth potential (p/g) trade-off that a wide range of animals face. In this study we assess a key assumption of this model for a common cyprinid partial migrant, the roach Rutilus rutilus, which migrates from shallow lakes to streams during winter. By sampling fish from stream and lake habitats in the autumn and spring and measuring their stomach fullness and diet composition, we tested if migrating roach pay a cost of reduced foraging when migrating. Resident fish had fuller stomachs containing more high quality prey items than migrant fish. Hence, we document a feeding cost to migration in roach, which adds additional support for the validity of the p/g model of migration in freshwater systems. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
PLoS ONE
volume
8
issue
5
publisher
Public Library of Science
external identifiers
  • wos:000319733000003
  • scopus:84878378707
ISSN
1932-6203
DOI
10.1371/journal.pone.0061223
project
CAnMove
BECC
language
English
LU publication?
yes
id
710b4f2c-b638-44c1-8ef9-f649efaa7170 (old id 3927331)
date added to LUP
2013-07-16 15:06:17
date last changed
2019-08-07 02:01:20
@article{710b4f2c-b638-44c1-8ef9-f649efaa7170,
  abstract     = {Migration has evolved as a strategy to maximise individual fitness in response to seasonally changing ecological and environmental conditions. However, migration can also incur costs, and quantifying these costs can provide important clues to the ultimate ecological forces that underpin migratory behaviour. A key emerging model to explain migration in many systems posits that migration is driven by seasonal changes to a predation/growth potential (p/g) trade-off that a wide range of animals face. In this study we assess a key assumption of this model for a common cyprinid partial migrant, the roach Rutilus rutilus, which migrates from shallow lakes to streams during winter. By sampling fish from stream and lake habitats in the autumn and spring and measuring their stomach fullness and diet composition, we tested if migrating roach pay a cost of reduced foraging when migrating. Resident fish had fuller stomachs containing more high quality prey items than migrant fish. Hence, we document a feeding cost to migration in roach, which adds additional support for the validity of the p/g model of migration in freshwater systems.},
  articleno    = {e61223},
  author       = {Chapman, Ben and Eriksen, Anders and Baktoft, Henrik and Brodersen, Jakob and Nilsson, Anders and Hulthén, Kaj and Brönmark, Christer and Hansson, Lars-Anders and Gronkjaer, Peter and Skov, Christian},
  issn         = {1932-6203},
  language     = {eng},
  number       = {5},
  publisher    = {Public Library of Science},
  series       = {PLoS ONE},
  title        = {A Foraging Cost of Migration for a Partially Migratory Cyprinid Fish},
  url          = {http://dx.doi.org/10.1371/journal.pone.0061223},
  volume       = {8},
  year         = {2013},
}