The thermal regime of rivers : a review
TLDR
In this paper, different river thermal processes responsible for water temperature variability on both the temporal (e.g. diel, daily, seasonal) and spatial scales, as well as providing information related to different water temperature models currently found in the literature are reviewed.Abstract:
Summary
1. The thermal regime of rivers plays an important role in the overall health of aquatic ecosystems, including water quality issues and the distribution of aquatic species within the river environment. Consequently, for conducting environmental impact assessments as well as for effective fisheries management, it is important to understand the thermal behaviour of rivers and related heat exchange processes.
2. This study reviews the different river thermal processes responsible for water temperature variability on both the temporal (e.g. diel, daily, seasonal) and spatial scales, as well as providing information related to different water temperature models currently found in the literature.
3. Water temperature models are generally classified into three groups: regression, stochastic and deterministic models. Deterministic models employ an energy budget approach to predict river water temperature, whereas regression and stochastic models generally rely on air to water temperature relationships.
4. Water temperature variability can occur naturally or as a result of anthropogenic perturbations, such as thermal pollution, deforestation, flow modification and climate change. Literature information is provided on the thermal regime of rivers in relation to anthropogenic impacts and such information will contribute to the better protection of fish habitat and more efficient fisheries management.read more
Citations
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Incorporating thermal regimes into environmental flows assessments: modifying dam operations to restore freshwater ecosystem integrity
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TL;DR: In this article, the authors explore the concept of the natural thermal regime, review how dam operations modify thermal regimes, and discuss the ecological implications of thermal alteration for freshwater ecosystems and identify five major challenges for incorporating water temperatures into environmental flow assessments, and describe future research opportunities and some alternative approaches for confronting those challenges.
Journal ArticleDOI
Recent advances in stream and river temperature research
TL;DR: In this article, the authors reviewed the advances in understanding gained since 1990 and on investigations of fundamental controls on thermal behavior, thermal heterogeneity at different spatial scales, the influence of human impacts and the nature of past and future trends.
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Current knowledge on non-native freshwater fish introductions
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Anthropogenic stresses on the world’s big rivers
TL;DR: In this article, the authors present a synthesis of the literature on the 32 biggest rivers in the world and propose a governance framework to monitor these rivers, finance their continual upkeep and help ameliorate increasing anthropogenic pressures, including large-scale damming, hydrological change, pollution, introduction of non-native species and sediment mining.
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Utilising green and bluespace to mitigate urban heat island intensity.
TL;DR: The analysis suggests that the evapotranspiration-based cooling influence of both green and bluespace is primarily relevant for urban canopy-layer conditions, and that tree-dominated greenspace offers the greatest heat stress relief when it is most needed.
References
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The River Continuum Concept
TL;DR: It is hypothesized that producer and consumer communities characteristic of a given river reach become established in harmony with the dynamic physical conditions of the channel.
Journal ArticleDOI
Growing‐Season Microclimatic Gradients from Clearcut Edges into Old‐Growth Douglas‐Fir Forests
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The cumulative effects of climate warming and other human stresses on Canadian freshwaters in the new millennium
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Habitat requirements of salmonids in streams
TL;DR: The major life stages of most salmonid species are differentiated with different uses of fluvial systems: migration of maturing fish from the ocean (anadromous fishes), lakes, or rivers to natal streams; spawning by adults: incubation of embryos; rearing of juveniles: and downstream migration of juveniles to large-river, lacustrine, or oceanic rearing areas as mentioned in this paper.
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