A Review of the Literature on the Upstream Migration of Adult Salmonids

Banks, J. W.

doi:10.1111/j.1095-8649.1969.tb03847.x

Cited by 196 publications

(217 citation statements)

References 47 publications

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“…The timing of passage (in either day or night) may be an early indicator of passage difficulty for salmon, with daytime passage potentially indicating higher levels of passage difficulty. Indeed there is likely to be an interaction between the light required to successfully ascend obstacles and the preference of turbid water or darkness as an anti-predator mechanism (Banks, 1969;Thorstad et al, 2008). Surprisingly, fish in 2012 which were sampled from within the fish pass and subsequently released downstream did not attempt to re-ascend through the pass a second time, instead ascending across the weir face.…”

Section: Discussionmentioning

confidence: 99%

“…At large complex obstacles, where fish are delayed and their migration thwarted, passage occurs primarily during daylight Gowans et al, 1999Gowans et al, , 2003Null & Niemela, 2011), whilst at less complex structures and natural by-pass channels passage generally occurs at night (Dunkley & Shearer, 1989;. Light intensity preference for passage requirements appears to be site specific and related to the visual orientation needs at each given obstacle (Banks, 1969;Thorstad et al, 2008). The timing of passage (in either day or night) may be an early indicator of passage difficulty for salmon, with daytime passage potentially indicating higher levels of passage difficulty.…”

Section: Discussionmentioning

confidence: 99%

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The impact of a small-scale riverine obstacle on the upstream migration of Atlantic Salmon

et al. 2017

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The behaviour of returning Salmo salar (Linnaeus, 1758) approaching, and attempting to pass low-head weirs remains relatively unknown. A radio telemetry array was created at a low-head weir to enable the behaviour of S. salar (n = 120) to be observed as they approached and attempted to pass the barrier. The majority of fish successfully passed the barrier on their first or second attempt, some individuals required 11 attempts prior to successful passage occurring. Mean delay at the barrier per fish was 47.8 h (±SD 132.0 h), range 15 min to 31 days. Passage success on a fish's initial attempt was significantly predicted by the amount of searching a fish undertook, fork length, and fat content. Fish were more likely to have a successful first passage attempt if it was smaller with a low fat content and exerted a greater effort in searching for a passage channel. Small-scale barriers cause delays and increased energy expenditure in migrating fish. Barriers may be creating an anthropogenic selection pressure for traits which enable passage success. The impact of a delay at a barrier and increased energy expenditure on reproduction and gonad development remains unknown but is likely to be negatively impacted by instream anthropogenic structures.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

The impact of a small-scale riverine obstacle on the upstream migration of Atlantic Salmon

et al. 2017

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“…Le choix des périodes d'observation a été guidé par l'abondance présumée des remontées de poissons au moment des fortes marées (HAYES, 1953et BANKS. 1969 STUART (1962) n'a jamais observé d'activité nocturne en rapport avec le franchissement d'obstacle.…”

Section: -Protocole D'étudeunclassified

“…1969 STUART (1962) n'a jamais observé d'activité nocturne en rapport avec le franchissement d'obstacle. SHAPOVALOV (1954in BANKS. 1969) et ELLIS (1962 font état de sauts pendant la nuit sur des obstacles de faible importance.…”

Section: -Protocole D'étudeunclassified

Le franchissement d'obstacles par les salmonidés migrateurs adultes. Analyse du comportement de saut pour un meilleur aménagement

Ombredane

Fontenelle

Ohresser

et al. 1987

Bull. Fr. Pêche Piscic.

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RÉSUMÉLe comportement de saut de salmonidés migrateurs a été étudié simultanément sur deux barrages de faible hauteur ( < 2m) sur le Blavet canalisé. Une très faible proportion ( < 9 %) de l'activité totale conduit au franchissement des barrages. Au niveau d'un pertuis, la réussite d'un saut ne peut s'observer que s'il y a coïncidence entre un fort courant d'attraction, une fosse d'appel suffisante et l'ouverture de ce pertuis. Les fuites d'eau sur les pertuis fermés entraînent jusqu'à 50 % de tentatives vouées à l'échec. Le colmatage de ces fuites a permis de réduire cette proportion à 25 %. La discussion de ces résultats montre qu'une gestion simple des barrages de ce type peut faciliter leur franchissement par les salmonidés migrateurs adultes. DAM OVERPASSING BY MIGRATORY ADULT SALMONIDS. AN ANALYSIS OF THE LEAPING BEHAVIOUR WITH THE VIEW OF A BETTER MANAGEMENT SUMMARYThe leaping behaviour of migratory salmonids has been studied at two small dams( < 2 m) on the River Blavet. A very small proportion ( < 9%) of the total activity leads the fish to pass over the dams. For each gâte, a successf ul jump can be only observed when a strong attractive current, a deep pool and an open gâte are combined. Even when the gâtes are closed, the water leaks lead up to 50 % of unsuccessfui attempts. A réduction to 25 % was obtained by plugging the leaks. The discussion of the results shows that a simple management of thèse kinds of dams can improve their clearing by adult migratory salmonids.

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“…Pacifi c salmon behavior during their spawning migration includes periods of osmoregulation and thermoregula- tion prior to river entry, which might involve milling behavior for extended periods of time (Banks, 1969). River entry is also affected by fl ow characteristics, and salmon might start their upriver migration only at specifi c fl ow rates (Jonsson, 1991).…”

Section: Esker Creekmentioning

confidence: 99%

Acoustic monitoring and prey association for beluga whale, Delphinapterus leucas, and harbor porpoise, Phocoena phocoena, off two river mouths in Yakutat Bay, Alaska

Castellote¹,

Stafford²,

Neff³

et al. 2015

MFR

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A Review of the Literature on the Upstream Migration of Adult Salmonids

Cited by 196 publications

References 47 publications

The impact of a small-scale riverine obstacle on the upstream migration of Atlantic Salmon

The impact of a small-scale riverine obstacle on the upstream migration of Atlantic Salmon

Le franchissement d'obstacles par les salmonidés migrateurs adultes. Analyse du comportement de saut pour un meilleur aménagement

Acoustic monitoring and prey association for beluga whale, Delphinapterus leucas, and harbor porpoise, Phocoena phocoena, off two river mouths in Yakutat Bay, Alaska

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