Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 12 of 12 for “"Critical thermal maximum"”.
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Effects of chronic, sublethal ferric iron exposure on the critical swim speed of rainbow trout (Oncorhynchus mykiss) and critical thermal maximum of cutthroat trout (Oncorhynchus clarkii)
… Juvenile rainbow trout (Oncorhynchus mykiss) critical swim speed (Ucrit) was measured to establish if there was a relationship between chronic sublethal ferric iron exposure and changes in Ucrit. The gills were examined for histological changes and fish growth was measured as endpoints. No …
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Thermal Adaptation in Largemouth Bass Populations Inhabiting Power Plant Cooling Reservoirs
The objective of this study was to test for thermal adaptation in largemouth bass (Micropterus salmoides) populations inhabiting two power plant cooling reservoirs in central Texas. The offspring of bass from the two test reservoirs and two control reservoirs were raised under near identical …
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Effects of annual thermal regime on growth trajectories of native age-0 brook trout (Salvelinus Fontinalis)
… such changes. Brook trout are considered stenothermal, with a thermal preference of 14°C to 18°C, and a critical thermal maximum of 25°C. With such narrow thermal optima, brook trout are restricted to watersheds with adequate thermal refugia to withstand warm summer temperatures. For …
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The influence of environmental temperature on the thermal tolerance of Antarctic notothenioid fishes
… Ocean has resulted in a remarkably narrow thermal tolerance shared among most extant species. While most of these fishes have the capacity to accommodate the physiological challenges of low temperature, they show a greatly reduced tolerance to heat relative to fishes native to warmer …
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Thermal Tolerance of Age-0 Gulf of Mexico Striped Bass (<i>Morone saxatilis</i>): Ontogenetic and Genetic Effects
… bass restoration, and evaluating the upper thermal tolerance of Gulf striped bass larvae and juveniles. Multiplex assays for eleven microsatellite loci were optimized and the suitability of the obtained panel for genetic tagging and monitoring was evaluated. Simulation analysis employing a …
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Tolerating climate change: a study on the influence of thermal history on thermal tolerance of Galaxias zebratus in rivers of the Cape Peninsula, South Africa
… fish, like G. zebratus, may be sensitive to the thermal regime of their environment and may thus be influenced by climate warming. The most commonly used experimental approach for determining the effect of elevated temperature on freshwater biota is the Critical Thermal Method (CTM). The CTM …
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The Thermal Ecology of Sceloporus occidentalis
… Studies have historically looked at thermal tolerance values to establish predictive models for population and species extinctions.</p> <p>In chapter 1, we looked at recent studies that suggest that thermal tolerance may be a plastic trait and test the effects empirically. Most …
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Effects Of Thermal Acclimation On The Critical Thermal Maxima Of The Tropical Cockroaches: Blaptica Dubia, Eublaberus Posticus And Blaberus Discoidalis (blaberidae)
<p>The Critical Thermal Maxima (CTMax) is a measure of upper thermal tolerance. The physiological response upon reaching CTMax is similar across taxa, making CTMax useful in comparative studies. The CTMax defines the ecological lethal temperature of an organism and has been used to predict the …
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The influence of spatiotemporal variation in ambient temperature on the ecology and physiology of birds
… variation in ambient temperature is related to thermal physiology is the climatic variability hypothesis (CVH), which predicts that thermal tolerance breadth should increase with increasing levels of temperature variability. Studies documenting latitudinal increases in the thermal tolerance …
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The responses of subtropical nearshore fishes to climate change
… and frequency. Nearshore ecosystems serve as critical habitat for juvenile fishes (e.g., schoolmaster snapper, yellowfin mojarra) and function as foraging grounds for adults (e.g., bonefish, checkered puffer), yet it is unclear how nearshore fishes will respond to forecasted increases in …
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Effects of environmental warming on lentic freshwater communities and the behavioral and physiological responses by fishes to warming
… body sizes and rapid growth. Species-specific thermal tolerances may further affect how organisms utilize habitats with lakes. Behaviors such as foraging, thermoregulation, and predator avoidance allow individuals to balance ecological conditions and physiological constraints with energetic …