Temperature effects on performance and physiology of two prairie stream minnows

Frenette, Bryan D.; Bruckerhoff, Lindsey A.; Tobler, Michael; Gido, Keith B.

doi:10.1093/conphys/coz063

Cited by 7 publications

(6 citation statements)

References 70 publications

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“…We found T up for Bluegill ETS enzyme activity (acclimated to 21°C) to be 33.7°C, while CT max for Bluegill acclimated at ~20–26°C ranged from 31.5°C to 37.5°C (Beitinger et al, 2000). Central Stoneroller Campostoma anomalum acclimated to 23°C displayed loss of equilibrium at 35.8°C with reported CT max as high as 38°C (Chagnon & Hlohowskyj, 1989; Frenette et al, 2019; Mundahl, 1990), whereas we found Largescale Stoneroller ETS enzyme T up to be 40.2°C. Red Shiner Cyprinella lutrensis is a widely‐distributed member of the Cyprinella genus; individuals acclimated to 20°C and 22°C experienced loss of equilibrium at 34°C and 36.2°C, respectively (Carrier & Beitinger, 1988); we found T up for ETS enzyme activity to be 36.6°C for a member of the same genus, Tallapoosa Shiner.…”

Section: Discussionsupporting

confidence: 38%

“…Campostoma anomalum acclimated to 23°C displayed loss of equilibrium at 35.8°C with reported CT max as high as 38°C (Chagnon & Hlohowskyj, 1989;Frenette et al, 2019;Mundahl, 1990) (Westhoff et al, 2021), and although these comparisons are promising, additional work combining CT max and ETS activity, especially with common acclimation conditions, is needed to better define the relationship between them.…”

Section: Discussionmentioning

confidence: 99%

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Thermal performance of the electron transport system Complex III in seven Alabama fishes

et al. 2022

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Management of fish populations for conservation in thermally variable systems requires an understanding of the fish's underlying physiology and responses to thermal stress. Physiological research at the organismal level provides information on the overall effects of stressors such as extreme temperature fluctuations. While experiments with whole organisms provide information as to the overall effects of temperature fluctuations, biochemical assays of thermal stress provide direct results of exposure that are both sensitive and specific. Electron transport system (ETS; Complex III) assays quantify a rate‐limiting step of respiratory enzymes. Parameters that can be estimated via this approach include optimum thermal temperature (Topt) and optimal breadth of thermal performance (Tbreadth), which can both be related to organismal‐level temperature thresholds. We exposed enzymes of seven fish species (native fish chosen to represent a typical community in Alabama streams) to temperatures in the range 11–44°C. The resultant enzymatic thermal performance curves showed that Topt, the lower temperature for enzyme optimal thermal performance (Tlow), the upper temperature for enzyme optimal thermal performance (Tup), and Tbreadth differed among species. Relationships between enzymatic activity and temperature for all fish followed a pattern of steadily increasing enzyme activity to Topt before gradually decreasing with increasing temperature. A comparison of our enzyme optimum and upper‐temperature limit results versus published critical thermal maxima values supports that ETS Complex III assays may be useful for assessing organismal‐level thermal tolerance.

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Section: Discussionsupporting

confidence: 38%

Section: Discussionmentioning

confidence: 99%

Thermal performance of the electron transport system Complex III in seven Alabama fishes

et al. 2022

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“…Temperature is also a strong driver of largemouth bass distributions (Bae et al, 2018; Sowa & Rabeni, 1995), but was not considered in this analysis. Temperature may have explained the negative co‐occurrence and abundance patterns between southern redbelly dace and largemouth bass, as dace are known to inhabit relatively small, cool streams (Frenette et al, 2019). Sampling variability, such as local conditions at sites probably also introduced variation in our ability to detect largemouth bass presence.…”

Section: Discussionmentioning

confidence: 99%

Disentangling effects of predators and landscape factors as drivers of stream fish community structure

et al. 2020

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Experimental and fine‐scale studies indicate predators can have strong effects on stream fishes. It is unclear, however, how predators interact with landscape factors to influence stream fish communities at scales relevant to management and conservation. Because predators and prey respond to environmental variability, measuring community responses to predators requires resolving the effects of abiotic factors on both predators and prey. We collected stream fish community data in the summers of 2017 and 2018 and paired structural equation modelling with multivariate methods to identify abiotic factors that influenced the distribution of a predatory fish, largemouth bass (Micropterus salmoides) and community structure of stream fish. We then compared how fish species richness and community composition responded to the presence of bass mediated by environmental factors. Probability of occurrence of bass increased with catchment area, while richness responded to both natural and anthropogenic characteristics of streams and their catchments. Contrary to our prediction, richness was higher at sites with bass and several species exhibited positive co‐occurrence and abundance patterns with bass, while only one species had a negative relationship. Higher diversity of stream fishes in the presence of bass highlights the difficulties in understanding the combined effects of predators and environmental variation, both natural and human induced, as drivers of community structure. We discuss several challenges to understanding the effects of predators in natural systems, including unmeasured environmental variability, mismatch of spatial and temporal scales, and context dependency of ecological responses.

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“…Wildfire‐mediated fluxes vary with topology. Historically, wildfires in the western United States tended to occur in forested headwater catchments, for example, in the Yellowstone fires (Minshall, 2003 ) and wildfires in New Mexico, United States (Frenette et al., 2019 ). Disturbances tend to have a larger impact in headwaters, and these impacts are attenuated downstream (Benda et al., 2004 ).…”

Section: Wildfire Effects On Aquatic Habitatmentioning

confidence: 99%

Resilience of terrestrial and aquatic fauna to historical and future wildfire regimes in western North America

Jager

Long

Malison

et al. 2021

Ecology and Evolution

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Wildfires in many western North American forests are becoming more frequent, larger, and severe, with changed seasonal patterns. In response, coniferous forest ecosystems will transition toward dominance by fire‐adapted hardwoods, shrubs, meadows, and grasslands, which may benefit some faunal communities, but not others. We describe factors that limit and promote faunal resilience to shifting wildfire regimes for terrestrial and aquatic ecosystems. We highlight the potential value of interspersed nonforest patches to terrestrial wildlife. Similarly, we review watershed thresholds and factors that control the resilience of aquatic ecosystems to wildfire, mediated by thermal changes and chemical, debris, and sediment loadings. We present a 2‐dimensional life history framework to describe temporal and spatial life history traits that species use to resist wildfire effects or to recover after wildfire disturbance at a metapopulation scale. The role of fire refuge is explored for metapopulations of species. In aquatic systems, recovery of assemblages postfire may be faster for smaller fires where unburned tributary basins or instream structures provide refuge from debris and sediment flows. We envision that more‐frequent, lower‐severity fires will favor opportunistic species and that less‐frequent high‐severity fires will favor better competitors. Along the spatial dimension, we hypothesize that fire regimes that are predictable and generate burned patches in close proximity to refuge will favor species that move to refuges and later recolonize, whereas fire regimes that tend to generate less‐severely burned patches may favor species that shelter in place. Looking beyond the trees to forest fauna, we consider mitigation options to enhance resilience and buy time for species facing a no‐analog future.

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Temperature effects on performance and physiology of two prairie stream minnows

Cited by 7 publications

References 70 publications

Thermal performance of the electron transport system Complex III in seven Alabama fishes

Thermal performance of the electron transport system Complex III in seven Alabama fishes

Disentangling effects of predators and landscape factors as drivers of stream fish community structure

Resilience of terrestrial and aquatic fauna to historical and future wildfire regimes in western North America

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