Movements of Atlantic salmon migrating upstream through a fish-pass complex in Scotland

A R D Gowans, J D Armstrong, I G Priede, S Mckelvey

Research output: Contribution to journalArticle

65 Citations (Scopus)

Abstract

Movements of adult Atlantic salmon were tracked through a series of four fish passes and an impoundment on the River Conon system, Northern Scotland. Proportions of fish passing individual obstructions ranged from 63 to 100%. The cumulative effect was that only 4 of the 54 tagged fish reached the spawning areas. The fish were delayed for 1-41 days at a pool-and-overfall ladder and 1-52 days at a Borland fish lift. The fish swam through a 10 km long reservoir at 0.21-1.16 km.h(-1) . A total of 13 fish negotiated a 2.5 km long, 3 m diameter diversion tunnel through a mountain to their home river. High levels of electromyogram (EMG) activity were recorded during ascent of a pool-and-overfall fish ladder, indicating that high energy demanding burst swimming was required.

Original languageEnglish
Pages (from-to)177-189
Number of pages13
JournalEcology of Freshwater Fish
Volume12
Publication statusPublished - 2003

Keywords

  • salmon migration
  • fish-pass complex
  • radio telemetry
  • electromyogram telemetry
  • TRANSMITTED ELECTROMYOGRAM SIGNALS
  • HYDROELECTRIC DAM
  • TELEMETRY
  • SALAR
  • SYSTEM
  • TROUT

Cite this

Gowans, A. R. D., Armstrong, J. D., Priede, I. G., & Mckelvey, S. (2003). Movements of Atlantic salmon migrating upstream through a fish-pass complex in Scotland. Ecology of Freshwater Fish, 12, 177-189.

Movements of Atlantic salmon migrating upstream through a fish-pass complex in Scotland. / Gowans, A R D ; Armstrong, J D ; Priede, I G ; Mckelvey, S .

In: Ecology of Freshwater Fish, Vol. 12, 2003, p. 177-189.

Research output: Contribution to journalArticle

Gowans, ARD, Armstrong, JD, Priede, IG & Mckelvey, S 2003, 'Movements of Atlantic salmon migrating upstream through a fish-pass complex in Scotland', Ecology of Freshwater Fish, vol. 12, pp. 177-189.
Gowans, A R D ; Armstrong, J D ; Priede, I G ; Mckelvey, S . / Movements of Atlantic salmon migrating upstream through a fish-pass complex in Scotland. In: Ecology of Freshwater Fish. 2003 ; Vol. 12. pp. 177-189.
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AB - Movements of adult Atlantic salmon were tracked through a series of four fish passes and an impoundment on the River Conon system, Northern Scotland. Proportions of fish passing individual obstructions ranged from 63 to 100%. The cumulative effect was that only 4 of the 54 tagged fish reached the spawning areas. The fish were delayed for 1-41 days at a pool-and-overfall ladder and 1-52 days at a Borland fish lift. The fish swam through a 10 km long reservoir at 0.21-1.16 km.h(-1) . A total of 13 fish negotiated a 2.5 km long, 3 m diameter diversion tunnel through a mountain to their home river. High levels of electromyogram (EMG) activity were recorded during ascent of a pool-and-overfall fish ladder, indicating that high energy demanding burst swimming was required.

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