Modelling the trajectories of migrating Atlantic salmon (Salmo salar)

Douglas J. Booker, Neil C. Wells, I. Philip Smith

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

This paper describes a model for simulating the trajectories of migrating Atlantic salmon (Salmo salar) in the ocean. Surface current and temperature representations were used as boundary conditions for simulation of migration trajectories. Representations of surface currents were derived from a general circulation model forced by realistic winds and then tested through comparisons with observed trajectories of drifting buoys. Observed climatology data were used to represent sea surface temperature patterns. The model was used to simulate the trajectories of 15 individual salmon that were tagged in their home rivers and subsequently recaptured at sea. In contrast to a random swimming direction model, trajectories simulated using both rheotaxis and thermotaxis as direction-finding mechanisms passed close to the recapture locations of the salmon. The timings and positions of the trajectories simulated using rheotaxis corresponded more closely with the observed data than those simulated using thermotaxis. This work indicates that either rheotaxis or thermotaxis, or a combination of the two, are possible direction-finding mechanisms for migrating Atlantic salmon.
Original languageEnglish
Pages (from-to)352-361
Number of pages10
JournalCanadian Journal of Fisheries and Aquatic Sciences
Volume65
Issue number3
DOIs
Publication statusPublished - Mar 2008

Fingerprint

Salmo salar
trajectories
rheotaxis
trajectory
modeling
salmon
General Circulation Models
climatology
surface temperature
general circulation model
boundary condition
sea surface temperature
oceans
rivers
ocean
river
simulation
temperature

Cite this

Modelling the trajectories of migrating Atlantic salmon (Salmo salar). / Booker, Douglas J.; Wells, Neil C.; Smith, I. Philip.

In: Canadian Journal of Fisheries and Aquatic Sciences, Vol. 65, No. 3, 03.2008, p. 352-361.

Research output: Contribution to journalArticle

Booker, Douglas J. ; Wells, Neil C. ; Smith, I. Philip. / Modelling the trajectories of migrating Atlantic salmon (Salmo salar). In: Canadian Journal of Fisheries and Aquatic Sciences. 2008 ; Vol. 65, No. 3. pp. 352-361.
@article{aee8fd04f9ea435c84536690a5647799,
title = "Modelling the trajectories of migrating Atlantic salmon (Salmo salar)",
abstract = "This paper describes a model for simulating the trajectories of migrating Atlantic salmon (Salmo salar) in the ocean. Surface current and temperature representations were used as boundary conditions for simulation of migration trajectories. Representations of surface currents were derived from a general circulation model forced by realistic winds and then tested through comparisons with observed trajectories of drifting buoys. Observed climatology data were used to represent sea surface temperature patterns. The model was used to simulate the trajectories of 15 individual salmon that were tagged in their home rivers and subsequently recaptured at sea. In contrast to a random swimming direction model, trajectories simulated using both rheotaxis and thermotaxis as direction-finding mechanisms passed close to the recapture locations of the salmon. The timings and positions of the trajectories simulated using rheotaxis corresponded more closely with the observed data than those simulated using thermotaxis. This work indicates that either rheotaxis or thermotaxis, or a combination of the two, are possible direction-finding mechanisms for migrating Atlantic salmon.",
author = "Booker, {Douglas J.} and Wells, {Neil C.} and Smith, {I. Philip}",
year = "2008",
month = "3",
doi = "10.1139/f07-173",
language = "English",
volume = "65",
pages = "352--361",
journal = "Canadian Journal of Fisheries and Aquatic Sciences",
issn = "0706-652X",
publisher = "CANADIAN SCIENCE PUBLISHING, NRC RESEARCH PRESS",
number = "3",

}

TY - JOUR

T1 - Modelling the trajectories of migrating Atlantic salmon (Salmo salar)

AU - Booker, Douglas J.

AU - Wells, Neil C.

AU - Smith, I. Philip

PY - 2008/3

Y1 - 2008/3

N2 - This paper describes a model for simulating the trajectories of migrating Atlantic salmon (Salmo salar) in the ocean. Surface current and temperature representations were used as boundary conditions for simulation of migration trajectories. Representations of surface currents were derived from a general circulation model forced by realistic winds and then tested through comparisons with observed trajectories of drifting buoys. Observed climatology data were used to represent sea surface temperature patterns. The model was used to simulate the trajectories of 15 individual salmon that were tagged in their home rivers and subsequently recaptured at sea. In contrast to a random swimming direction model, trajectories simulated using both rheotaxis and thermotaxis as direction-finding mechanisms passed close to the recapture locations of the salmon. The timings and positions of the trajectories simulated using rheotaxis corresponded more closely with the observed data than those simulated using thermotaxis. This work indicates that either rheotaxis or thermotaxis, or a combination of the two, are possible direction-finding mechanisms for migrating Atlantic salmon.

AB - This paper describes a model for simulating the trajectories of migrating Atlantic salmon (Salmo salar) in the ocean. Surface current and temperature representations were used as boundary conditions for simulation of migration trajectories. Representations of surface currents were derived from a general circulation model forced by realistic winds and then tested through comparisons with observed trajectories of drifting buoys. Observed climatology data were used to represent sea surface temperature patterns. The model was used to simulate the trajectories of 15 individual salmon that were tagged in their home rivers and subsequently recaptured at sea. In contrast to a random swimming direction model, trajectories simulated using both rheotaxis and thermotaxis as direction-finding mechanisms passed close to the recapture locations of the salmon. The timings and positions of the trajectories simulated using rheotaxis corresponded more closely with the observed data than those simulated using thermotaxis. This work indicates that either rheotaxis or thermotaxis, or a combination of the two, are possible direction-finding mechanisms for migrating Atlantic salmon.

U2 - 10.1139/f07-173

DO - 10.1139/f07-173

M3 - Article

VL - 65

SP - 352

EP - 361

JO - Canadian Journal of Fisheries and Aquatic Sciences

JF - Canadian Journal of Fisheries and Aquatic Sciences

SN - 0706-652X

IS - 3

ER -