2008
DOI: 10.1002/rra.1144
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Influence of hydrological regimes on the pre‐spawning entry of Atlantic salmon (Salmo salar L.) into an upland river

Abstract: The Girnock Burn is an Atlantic salmon (Salmo salar) spawning tributary of the river Dee, Aberdeenshire, Scotland. The dates, sexes and numbers of adult salmon entering the stream in the three months prior to spawning were determined between 1969 and 2005 using a permanent fish-trap. During this time, the number of fish returning to spawn varied markedly. Here we analyze the whole of this unique long term data set in order to characterize and classify the hydrologic regimes of the pre-spawning migration period… Show more

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Cited by 35 publications
(46 citation statements)
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“…The size of the adults influences their tendency to stray, as large salmon tend to stray more than smaller ones from the same population (Jonsson et al 2003), and large salmon also avoid entering rivers when the water level is low (N. , B. Jonsson et al 2007, Tetzlaff et al 2008. The latter may explain why Atlantic salmon size increases in rivers with a mean water flow of ≤30 m 3 s −1 (Schaffer & Elson 1975, Jonsson et al 1991.…”
Section: Discussionmentioning
confidence: 99%
“…The size of the adults influences their tendency to stray, as large salmon tend to stray more than smaller ones from the same population (Jonsson et al 2003), and large salmon also avoid entering rivers when the water level is low (N. , B. Jonsson et al 2007, Tetzlaff et al 2008. The latter may explain why Atlantic salmon size increases in rivers with a mean water flow of ≤30 m 3 s −1 (Schaffer & Elson 1975, Jonsson et al 1991.…”
Section: Discussionmentioning
confidence: 99%
“…Considering the ecological importance of high‐flow events for in‐stream ecology (e.g. Tetzlaff et al , 2008), possible land‐use changes affecting runoff generation, or climate changes affecting catchment storage in upland headwaters are critical for the river system as a whole. Equally, it is clear that lowland areas act as key storage zone for sustaining the lowest baseflows.…”
Section: Discussionmentioning
confidence: 99%
“…Detailed characteristics about the catchment are given elsewhere: Tetzlaff et al (2007Tetzlaff et al ( , 2008 describe the general hydrology; Moir et al (2002Moir et al ( , 2004 describe the distribution of salmon spawning sites and their hydraulic and sedimentary characteristics; Soulsby et al (2007) outline the catchment scale groundwater-surface water interactions, whilst Malcolm et al (2005) consider their implications for salmon spawning and Youngson et al (2004) assess the resulting effects on embryo development and survival.…”
Section: Study Area and Methodsmentioning
confidence: 99%