Diel movement of brown trout, Salmo trutta , is reduced in dense populations with high site fidelity

Ecology and Evolution
Ondřej SlavíkIva Langrová

Abstract

The movement of individuals within preferred areas is reduced by a high availability of food and information about its distribution, while high number of competitors promotes increased movement. Experienced animals use information about social and physical environment to improve resources exploitation, tended to maintain positions within the preferred areas and reuse the environment that is often referred to as site fidelity. In this study, radio-telemetry was used to observe the movements of 98 adult brown trout, Salmo trutta, in oligotrophic streams with different population densities; to determine subpopulation site fidelity, 5,195 conspecifics from 14 subpopulations were individually tagged during spring and autumn. During a 7-year-long field study, we tested the hypothesis that brown trout individuals from subpopulations with high site fidelity would display lower movement. The hypothesis was supported, and reduced movement was further related to high subpopulation density in association with high slope indicating the physical environment-influenced movement. The probability of contact between individuals increased with subpopulation site fidelity and subpopulation density. No influence of food abundance on brown trout mov...Continue Reading

References

Jun 24, 2004·Proceedings. Biological Sciences·S W GriffithsJ I Johnsson
May 17, 2006·Trends in Ecology & Evolution·Sasha R X DallDavid W Stephens
May 30, 2006·Theoretical Population Biology·Raymond H G KlaassenSilke Bauer
Jul 4, 2006·Behavioural Processes·Marco Aurélio Lima SábatoCarlyle Mendes Coelho
Sep 26, 2006·Ecology·Raymond H G KlaassenDaniëlle Bankert
Dec 23, 2006·The Journal of Animal Ecology·Raymond H G KlaassenCasper H A VAN Leeuwen
Sep 11, 2007·Ecology·Simon Benhamou
Feb 6, 2008·The Journal of Animal Ecology·Stefán O Steingrímsson, James W A Grant
Mar 14, 2009·Hormones and Behavior·Rebecca M Calisi, George E Bentley
Jun 23, 2010·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·Juan M MoralesDaniel T Haydon
Aug 24, 2010·The Journal of Animal Ecology·Xavier A HarrisonStuart Bearhop
Aug 11, 2012·Progress in Brain Research·Roelof A HutHoracio De la Iglesia
May 20, 2016·Proceedings. Biological Sciences·Gary M BucciarelliLee B Kats
Jun 2, 2016·Ecology and Evolution·Amy FingerleStefán Óli Steingrímsson
Oct 25, 2016·Journal of Fish Biology·M L KnopeD C Rypkema

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Citations

Oct 27, 2020·Frontiers in Psychiatry·Veronika LangovaJiri Horacek

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