Circadian rhythm of swimming activity in juvenile pink salmon (Oncorhynchus gorbuscha)

Godin, Jean‐Guy J.

doi:10.1007/bf00393635

Cited by 26 publications

(8 citation statements)

References 21 publications

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“…In a study group of pink salmon (Oncorhynchus gorbuscha, Walbaum), 68% were nocturnal and the rest diurnal (Godin 1981). In a study group of pink salmon (Oncorhynchus gorbuscha, Walbaum), 68% were nocturnal and the rest diurnal (Godin 1981).…”

Section: Introductionmentioning

confidence: 94%

Diel migration patterns of Atlantic salmon smolts with particular reference to the absence of crepuscular migration

Ibbotson

Beaumont

Pinder

et al. 2006

Ecology of Freshwater Fish

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Ibbotson AT, Beaumont WRC, Pinder A, Welton S, Ladle M. Diel migration patterns of Atlantic salmon smolts with particular reference to the absence of crepuscular migration.Abstract -The real-time diel pattern of Atlantic salmon smolt migration was observed for 8 years using automatic resistivity counters verified by video surveillance. A clear dominant nocturnal migration was demonstrated early in the migration period, later becoming increasingly diurnal, until rates became approximately equal at day and night. Migration patterns were related to water temperature, such that when mean daily temperatures were below 12°C, hourly rates of migration were significantly lower during the day than at night. When daily mean temperatures exceeded 12°C, there was no significant difference between diurnal and nocturnal migration rates. Migration patterns showed a distinct suppression of migration at dawn and dusk throughout the migration period. It is hypothesised that this behaviour is an active decision and/or an adaptive strategy either to take advantage of increased food in the form of invertebrate drift or to reduce predation risk from actively feeding piscivores or both.

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Section: Introductionmentioning

confidence: 94%

Diel migration patterns of Atlantic salmon smolts with particular reference to the absence of crepuscular migration

Ibbotson

Beaumont

Pinder

et al. 2006

Ecology of Freshwater Fish

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“…The presence of a circadian rest-activity rhythm has been repeatedly reported for marine and sweet water fish (for reviews see Schwassmann 1971 ;Rusak 1981 ;Godin 1981). Although there are reports that fish engage in sleep-like behavior during part of the rest phase (for reviews see Tobler 1984;Campbell and ToNer 1984), the question whether fish sleep is not yet settled.…”

Section: Introductionmentioning

confidence: 96%

Effect of rest deprivation on motor activity of fish

Tobler

Borbély

1985

J. Comp. Physiol.

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The rest-activity behavior of two fish species, Cichlosoma nigrofasciatum and Carassius auratus kept under 12-h light-12-h dim condition was investigated. Rest and activity were determined from continuous time-lapse video recordings. Three states were discriminated based on the degree of motor activity. Both species exhibited a clear rest-activity rhythm with activity predominating during the light period. 'Rest deprivation' was carried out in perch during the habitual dim period by exposing the animals to either 12 h continuous light or to 6 h intermittent light (1 h light - 1 h dim for 12 h). Both light schedules enhanced activity and reduced rest. Light-induced activation was followed by an increase in low activity and rest behavior which prevailed for 12 h following continuous light, and for 6 h following intermittent light. The results indicate that homeostatic mechanisms are involved in the regulation of rest and activity in fish. These mechanisms may be similar to those underlying sleep regulation in mammals.

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“…Research is providing increasing evidence of plasticity in the activity patterns of fishes (see Reebs 2002), but the overwhelming majority of these examples come from temperate freshwater (Heggenes et al. 1993; Alanärä & Brännäs 1997; Alanärä, Burns & Metcalfe 2001; Metcalfe & Steele 2001) or diadromous (Godin 1981; Fraser, Metcalfe & Thorpe 1993) species. A small number of cases of diel plasticity in foraging behaviour for tropical marine fish have been anecdotally documented, for example, Hobson (1974) reported some evidence of diurnal and nocturnal feeding in nine of the 102 species he examined on Hawaiian coral reefs.…”

Section: Introductionmentioning

confidence: 99%

Unconstrained by the clock? Plasticity of diel activity rhythm in a tropical reef fish, Siganus lineatus

Fox¹,

Bellwood

2011

Functional Ecology

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Summary1. In studies of an organism's functional ecology, key behavioural traits such as foraging periodicity are assumed to be uniform across the species. In particular, the fundamental division between diurnal and nocturnal activity patterns is usually assumed to be a fixed one, with organisms demonstrating physiological traits optimised for a particular diel rhythm. 2. In this study, we explore the activity rhythm of a tropical reef fish, the golden-lined rabbitfish, Siganus lineatus. We make use of acoustic telemetry (manual tracking), combined with underwater observations of feeding behaviour to investigate the diel foraging patterns of S. lineatus, at three sites around the lagoon of Lizard Island, Great Barrier Reef. 3. We found significant differences in the activity patterns of shoreline and reef-based populations of S. lineatus. Individuals inhabiting the boulder-shoreline site foraged during the day and remained stationary in rest holes during the night, whereas individuals from the two reef populations foraged only during nocturnal hours, remaining stationary at the edge of favoured coral bommies during the day. To our knowledge, this represents the first example of a wholesale intraspecific shift in diel activity rhythm for a tropical marine fish. 4. We suggest that S. lineatus is a diurnal nominal herbivore whose biological rhythm has developed the flexibility to be nocturnal. This development may simply represent the masking effects of predation, competition or ontogeny, or it may represent entrainment over an evolutionary time-scale necessary to enable the species to expand its range into the coral reef environment. 5. Either way, the results identify S. lineatus as a potential subject for research into the relative importance of the various biological forces driving divisions along the temporal niche axis and suggest that the species has the potential to provide insights into the impact of biological rhythm plasticity on ecosystem functioning at the ecological and evolutionary level.

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Circadian rhythm of swimming activity in juvenile pink salmon (Oncorhynchus gorbuscha)

Cited by 26 publications

References 21 publications

Diel migration patterns of Atlantic salmon smolts with particular reference to the absence of crepuscular migration

Diel migration patterns of Atlantic salmon smolts with particular reference to the absence of crepuscular migration

Effect of rest deprivation on motor activity of fish

Unconstrained by the clock? Plasticity of diel activity rhythm in a tropical reef fish, Siganus lineatus

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