Sensory Mechanism and Selective Advantage for Diel Vertical Migration in Juvenile Sockeye Salmon, <i>Oncorhynchus nerka</i>

Levy, David A.

doi:10.1139/f90-204

Cited by 105 publications

(107 citation statements)

References 7 publications

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“…Eklöv & Persson (1995) have experimentally shown that, in the absence of reasonable refuges, juvenile perch have a low capacity to avoid predation, being quickly eliminated from the pelagic zone. Consequently, the dwelling of BPF in a cold hypolimnion could be an important mechanism of predator avoidance (Levy, 1990). Moreover, their shoaling behaviour could also serve to reduce predation (for review see e.g., Moyle & Cech, 2003).…”

Section: Discussionmentioning

confidence: 99%

Ontogenetic changes in the bathypelagic distribution of European perch fry Perca fluviatilis monitored by hydroacoustic methods

Čech

Kubečka

2006

Biologia

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Section: Discussionmentioning

confidence: 99%

Ontogenetic changes in the bathypelagic distribution of European perch fry Perca fluviatilis monitored by hydroacoustic methods

Čech

Kubečka

2006

Biologia

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“…La stratification du milieu, avec la présence d'une halocline / thermocline, influence les déplacements verticaux des poissons dans la colonne d'eau (LEVY, 1990 ;APPENZELLER et LEGGETT, 1995). Ces travaux portent sur des espèces marines et montrent que les mouvements verticaux peuvent être bloqués dans une couche d'eau.…”

Section: Relations Densités Et Turbidité-phase Lunaireunclassified

Influence de la luminosité nocturne et de la turbidité sur le comportement vertical de migration de la civelle d'anguille (Anguilla anguilla L.) dans l'estuaire de l'Adour

Casamajor

Bru

Prouzet

1999

Bull. Fr. Pêche Piscic.

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Les mouvements migratoires des civelles en fonction des conditions environnementales sont étudiés à partir d'une campagne d'échantillonnage dans l'estuaire de l'Adour au cours de la saison 1997/1998. Cette campagne se déroule la nuit, pendant le flot, à 10 km en amont de la limite transversale de la mer, sur un secteur de 12 km, situé dans la zone de propagation de la marée.Les densités de civelles sont estimées à partir du poids capturé dans des filets à mailles fines par unité de volume d'eau filtré dans différents secteurs (5 stations, 3 traits de tamis par station et 2 prélèvements par trait de tamis en surface et en profondeur). Entre novembre et mars, les arrivées de civelles forment une courbe en cloche avec un pic de migration en janvier. Le flux de civelles transite dans cette zone, en surface et en profondeur, mais préférentiellement en profondeur si l'intensité de la lumière nocturne (phase lunaire) est forte et la turbidité de l'eau faible. La situation lunaire et la turbidité modifient le comportement des individus ainsi que leur accessibilité à la pêcherie.Compte tenu des observations effectuées, le schéma migratoire vertical de l'espèce peut être modélisé de la manière suivante : l'interaction entre la luminosité nocturne et la turbidité influence les déplacements de civelles dans la colonne d'eau en relation avec leur comportement lucifuge. Plus la lumière nocturne qui pénètre dans la colonne d'eau est importante et plus les civelles migrent en profondeur. Reçu le 17 août 1998 Accepté le 25 février 1999Received 17 August, 1998 Accepted 25 February, 1999 RÉSUMÉ Mots-clés : civelle, comportement migratoire, cycle lunaire, densité, estuaire de l'Adour, turbidité.Article available at http://www.kmae-journal.org or http://dx.doi.org/10.1051/kmae:1999002 Bull. Fr. Pêche Piscic. (1999)355:327-347 -328 - INFLUENCE OF NIGHT BRIGHTNESS AND TURBIDITY ON THE VERTICAL MIGRATORY BEHAVIOUR OF GLASS-EELS(ANGUILLA ANGUILLA L.) IN THE ADOUR ESTUARY. ABSTRACTGlass-eels migratory movements according to environmental conditions were studied on Adour estuary during the 1997/1998 catch season. Thèse observations took place at night, during flood tide, 10 kilomètres upstream the sea transversal limit, on a sector of 12 kilomètres in length where we observed the propagation of tide.Glass-eels densities (in g per 100 m 3 ) were estimated with fine mesh nets on 5 sampling stations. On each station, 3 longitudinal transects were sampled simultaneously in surface and close to the bottom. Catch abundance between November and March followed a dome shape tendency with a pick in January. Movements into the water column were induced by moonlight intensity. Glass-eels migrate mainly close to the bottom when turbidity is low and moonlight intensity is high. Moon phases and turbidity induced modifications in glass-eels behaviour and catchability by the fishery.According to thèse observations, a modélisation of vertical migratory scheme of glass-eels in that estuary can be proposed : high moonlight intensity and low turbidity ind...

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“…Temperature and light are other physical factors likely to impact on the distribution offish (Jobling 1981;Coutant 1987;Levy 1990). Trout generally avoid temperatures > 21 °C (Spigarelli & Thommes 1979;Stables & Thomas 1992) and a New Zealand study on rainbow trout in two North Island lakes found that this temperature preference was the main variable determining the depth distribution of trout when oxygen was not limiting (Rowe & Chisnall 1995).…”

Section: Faunamentioning

confidence: 99%

Impact of pulp and paper mill effluent on water quality and fauna in a New Zealand hydro‐electric lake

Sharples¹,

Evans²

1998

New Zealand Journal of Marine and Freshwater Research

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The Kinleith pulp and paper mill discharges effluent into the Kopakorahi arm of Lake Maraetai (New Zealand) resulting in an effluent gradient defined by the effluent visibility (Secchi disc), transmittance (465 nm), temperature, and oxygen level that is discernible at least as far down stream as the adjoining Lake Waipapa. This effluent gradient is reflected in the composition of the fauna caught in fyke nets which at the most effluentexposed sites is dominated by goldfish (Carassius auratus) and is depauperate in pollution-sensitive species such as freshwater crayfish (Paranephrops planifrons) and trout (Salmo trutta and Oncoryhynchus mykiss). In 1991 the Kinleith mill undertook substantial process modifications which have resulted in improvements in the water quality of the discharge. Secchi disc visibilities have increased markedly at the most effluent-exposed sites since modernisation of the mill and similar improvements have been observed in light transmittance. A seasonal trend in water temperature not previously observed was recorded at the most effluent-exposed sites following modernisation, and dissolved oxygen levels at these sites rose markedly. Improvements in the water quality of the recipient since the mill modernisation are reflected in changes in the sampled fauna in particular the occurrence of trout at sites from which they were previously absent. M97021

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Sensory Mechanism and Selective Advantage for Diel Vertical Migration in Juvenile Sockeye Salmon, Oncorhynchus nerka

Cited by 105 publications

References 7 publications

Ontogenetic changes in the bathypelagic distribution of European perch fry Perca fluviatilis monitored by hydroacoustic methods

Ontogenetic changes in the bathypelagic distribution of European perch fry Perca fluviatilis monitored by hydroacoustic methods

Influence de la luminosité nocturne et de la turbidité sur le comportement vertical de migration de la civelle d'anguille (Anguilla anguilla L.) dans l'estuaire de l'Adour

Impact of pulp and paper mill effluent on water quality and fauna in a New Zealand hydro‐electric lake

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