Effects of Fall-to-Winter Changes in Habitat and Frazil Ice on the Movements and Habitat Use of Juvenile Rainbow Trout in a Wyoming Tailwater

Simpkins, Darin G.; Hubert, Wayne A.; Wesche, Thomas A.

doi:10.1577/1548-8659(2000)129<0101:eoftwc>2.0.co;2

Cited by 37 publications

(30 citation statements)

References 25 publications

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“…Refugia from winter disturbances are found over various spatial scales, overlapping with residential habitats (Simpkins et al 2000a) or representing distinct habitats (Brown RS et al 2000). The proximity of refugia has been shown to mitigate detrimental responses by reducing disturbanceinduced losses of individuals or energy and by enabling recolonization of disturbed areas.…”

Section: Articlesmentioning

confidence: 99%

Winter Disturbances and Riverine Fish in Temperate and Cold Regions

Weber¹,

Nilsson²,

Lind³

et al. 2013

BioScience

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Section: Articlesmentioning

confidence: 99%

Winter Disturbances and Riverine Fish in Temperate and Cold Regions

Weber¹,

Nilsson²,

Lind³

et al. 2013

BioScience

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“…Low flows can increase the incidence of frazil or anchor ice as more of the streamflow is exposed to cold air, especially over riffle areas where cold air is entrained by turbulence. Fish tend to avoid frazil ice, as ice crystals can damage gill tissues; a number of studies have documented fish movements during frazil ice episodes (Brown, 1999;Simkins et al, 2000). The subsequent deposition of frazil ice generally occludes habitat from use, although Roussel et al (2004) document Atlantic salmon hiding under anchor ice formations associated with large boulders.…”

Section: Ice Covered Seasonmentioning

confidence: 99%

“…Mitro et al (2003) demonstrated that low winter flows restricted access to bank habitat that was preferred by rainbow trout, resulting in a strong correlation between overwinter survival and flow. In other situations the use of pool habitats may buffer fish from low flows (Dare et al, 2002) although the accumulation of frazil ice from riffles can be significant (Simkins et al, 2000). Because the mechanisms by which winter flows and conditions affect fish performance and survival are still being described, it is unlikely that a standardized instream flow assessment methodology for the winter period will be developed in the near future.…”

Section: Wintermentioning

confidence: 99%

Low Flows, Instream Flow Needs and Fish Ecology in Small Streams

Bradford¹,

J²

2008

Canadian Water Resources Journal

101

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Low flows in Canadian streams and rivers can occur in both summer and winter and can be stressful for fish and other aquatic biota. Low flows can cause a reduction in habitat availability, food production, and water quality and can accentuate the effects of river ice during the winter. Human demands for out-of-channel use of water during low flow periods have resulted in the development of a suite of tools for determining the instream flows needed to maintain desired ecological attributes (most often fish populations) of the stream. This paper reviews the impact of low flows on aquatic resources in small streams as well as instream flow methods and the empirical support for them and concludes that there remains substantial uncertainty in the prediction of impacts of flow reductions or diversions. Some of this uncertainty is due to a lack of understanding of the relationship between flow and fish populations, but much is probably due to site-and time-specific variation in how stream biota responds to habitat changes. A risk-based approach, that explicitly acknowledges the uncertainty in both the hydrology and biology, is needed for decision-making in water management. 166Canadian Water Resources Journal/Revue canadienne des ressources hydriques

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“…In response to declining temperatures and photoperiod, rising flow or icing, many stream-dwelling salmonid species exhibit a strong diurnal concealment behaviour in a wide variety of covers (MCMAHON and HARTMAN, 1989;HEGGENES et al, 1993;CONTOR and GRIFFITH, 1995;THUROW, 1997;SIMPKINS et al, 2000;VALDIMARSSON et al, 2000) but from which they emerge after sunset to maintain some feeding activity (JAKOBER et al, 2000). Daytime predation risk from diurnally endothermic predators (birds and mammals) has been suggested as the major factor governing diurnal concealment (VALDIMARSSON and METCALFE, 1998;METCALFE et al, 1999).…”

Section: Winteringmentioning

confidence: 99%

Nature and Functions of Cover for Riverine Fish.

Allouche¹

2002

Bull. Fr. Pêche Piscic.

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This review attempts to assess the nature and the role of cover for riverine fish assemblages. Although early identified as a key factor for fish distribution, especially for salmonids, cover (i.e. woody debris, undercut banks, boulders, turbidity...) still remains the variable least considered in the studies of fish habitat relationships. This is mainly due to the diversity of ecological functions of cover structures in fish assemblages. Cover structures are structuring components of fish habitat and contribute to the biological productivity of streams. But, at the individual scale, cover fulfils three main functions: protection against predators, visual isolation reducing competition, and hydraulic shelter. In fact, the use of cover by fish results from a trade-off between the costs and the benefits associated with its use. Although the relationships between fish and cover appear extremely complex and context-specific, a growing body of evidence highlights the potential role of cover for management purposes.Key-words : cover, shelter, riverine fish, fish habitat. NATURE ET FONCTIONS DU COUVERT POUR LES POISSONS LOTIQUES. RÉSUMÉCet article décrit la typologie ainsi que les fonctions du couvert pour les poissons lotiques. Identifié très tôt comme un facteur explicatif de la distribution des poissons, principalement chez les salmonidés, le couvert (i.e. débris ligneux, sous-berges, blocs, turbidité...) demeure néanmoins la variable la moins considérée dans l'étude des relations habitat-poissons. Ceci s'explique notamment par les fonctions écologiques très diverses que le couvert remplit vis-à-vis des assemblages piscicoles. Les structures pourvoyeuses de couvert sont des agents structurants de l'habitat piscicole et contribuent à la productivité biologique des cours d'eau. Au niveau du microhabitat du poisson, le couvert remplit trois fonctions majeures : anti-prédation, isolation visuelle limitant la compétition, et abri hydraulique. En fait, l'utilisation du couvert par les poissons résulte d'un compromis entre les coûts et les bénéfices associés d'où l'extrême complexité de cette relation qui semble plutôt spécifique à un contexte donné. Malgré les difficultés d'extrapolation, de nombreux travaux mettent en évidence la signification écologique ainsi que l'utilisation potentielle du couvert pour une gestion optimale des ressources piscicoles.Mots-clés : couvert, abri, poissons lotiques, habitat piscicole.

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Effects of Fall-to-Winter Changes in Habitat and Frazil Ice on the Movements and Habitat Use of Juvenile Rainbow Trout in a Wyoming Tailwater

Cited by 37 publications

References 25 publications

Winter Disturbances and Riverine Fish in Temperate and Cold Regions

Winter Disturbances and Riverine Fish in Temperate and Cold Regions

Low Flows, Instream Flow Needs and Fish Ecology in Small Streams

Nature and Functions of Cover for Riverine Fish.

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