Physiology and Organismal Performance of Centrarchids

Kieffer, James D.; Cooke, Steven J.

doi:10.1002/9781444316032.ch8

Cited by 23 publications

(21 citation statements)

References 233 publications

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“…In endurance swimming tests, because high velocities are imposed in an acute fashion, less fit fish could not station‐hold to the same degree, leading possibly to early fatigue. The high variability noted in endurance swimming challenges was also noted for A. brevirostrum (Kieffer et al , 2009), pallid sturgeon Scaphirhynchus albus (Forbes & Richardson 1905) (Adams et al , 1999) and A. fulvescens (Hoover et al , 2005).…”

Section: Discussionmentioning

confidence: 88%

“…In an effort to conserve energy, acipenserids often station hold against the substratum, enabling them to hold ground with minimal swimming activity required (Adams et al , 1999, 2003). Kieffer et al (2009) observed that station holding became more difficult for juvenile A. brevirostrum as water velocity increased. Station holding was more obvious during U crit swimming tests than it was for endurance swim tests.…”

Section: Discussionmentioning

confidence: 99%

“…In the longer flume, fish had a greater distance (therefore, a longer period of time depending on water velocity) to re‐establish itself if swimming control was lost. Because acipenserid behaviour within a flume occasionally follows a swim and glide pattern at higher velocities (Kieffer et al , 2009), fishes find themselves upstream while swimming and downstream while gliding (negative groundspeed) because of the current (Peake & Farrell, 2006). This stop‐and‐go behaviour is potentially increased in the half‐length flume, which may partially explain why fatigue times were lower in the shorter flume.…”

Section: Discussionmentioning

confidence: 99%

“…It has been suggested that acipenserids are inefficient swimmers for various morphological reasons ( e.g. heterocercal tail, presence of scutes and notochord) (Webb, 1986; Peake et al , 1997; Kieffer et al , 2009). In laboratory experiments, Peake et al (1995) found that lake sturgeon Acipenser fulvescens (Rafinesque 1817) achieved swimming speeds of about half of those determined for sockeye salmon Oncor‐ hynchus nerka (Walbaum 1792) of a similar size.…”

Section: Introductionmentioning

confidence: 99%

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The influence of flume length and group size on swimming performance in shortnose sturgeon Acipenser brevirostrum

Deslauriers

Kieffer

2011

Journal of Fish Biology

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The main objectives of this study were to determine optimal methodologies to assess the general swimming performance of juvenile shortnose sturgeon Acipenser brevirostrum. Swimming densities (group v. individual swimming) and flume length (2 v. 1 m) were altered to verify if any of those variables affected performance (i.e. time to fatigue) during critical swimming (U(crit)) and endurance tests. Results for both U(crit) and endurance swimming were not significantly different between fish swum in groups of five or fish swum individually. The U(crit) values, however, were c. 22% higher for fish swum in a longer flume. Although swimming fish in groups did not improve swimming performance, group swimming lowered the variance of the data. Results also reveal that juvenile A. brevirostrum may not possess an ability to swim at high speeds (i.e. burst phase) for long periods.

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Section: Discussionmentioning

confidence: 88%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

The influence of flume length and group size on swimming performance in shortnose sturgeon Acipenser brevirostrum

Deslauriers

Kieffer

2011

Journal of Fish Biology

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“…It has been shown that for most fish, burst swimming causes severe disturbances to acid-base, osmotic, and electrolyte balance (reviewed in Wood 1991;Milligan 1996;Kieffer 2000;Kieffer and Cooke 2009). Reductions in muscle energy fuels and large increases in muscle and blood lactate concentrations typically occur (Kieffer 2000).…”

Section: Introductionmentioning

confidence: 98%

The Effects of Low-Speed Swimming following Exhaustive Exercise on Metabolic Recovery and Swimming Performance in Brook Trout (Salvelinus fontinalis)

Kieffer

Kassie²,

Taylor³

2011

Physiological and Biochemical Zoology

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Experiments were conducted to determine whether low-speed swimming during recovery from exhaustive exercise improved both metabolic recovery and performance during a swimming challenge. For these experiments, brook trout were allowed to recover from exhaustive exercise for 2 h while swimming at 0, 0.5, 1.0, or 1.5 body length (BL) s(-1) or allowed to recover from exhaustive exercise for 1, 2, or 3 h while swimming at 1.0 BL s(-1). At the appropriate interval, either (i) muscle and blood samples were removed from the fish or (ii) fish were assessed for performance (i.e., fatigue time) during a fixed-interval swimming test. Low-speed swimming during recovery from exhaustive exercise resulted in significantly longer fatigue times compared with fish recovering in still water (i.e., 0 BL s(-1)). However, swimming during recovery did not expedite recovery of muscle lactate or blood variables (e.g., lactate, osmolarity, glucose). These observations suggest that metabolic recovery and subsequent swimming performance may not be directly linked and that other factors play a role in swimming recovery in brook trout.

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No evidence for collateral effects of electromagnetic fields used to increase dissolved oxygen levels on the behavior and physiology of freshwater fishes

Elvidge

Bihun

Davis

et al. 2022

Water Environment Research

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Hypoxia in surface waters driven by warming climate and other anthropogenic stressors is a major conservation concern, and technological solutions for water quality remediation are sorely needed. One potential solution involves the use of low‐intensity electromagnetic fields (EMFs) to increase dissolved oxygen levels, but potential collateral effects of the EMFs on aquatic animals have not been formally evaluated. We examined the effects of EMF exposure on wild‐caught, captive sunfish (Lepomis spp.) over 8‐day and 3‐day exposures, with and without aeration in mesocosms and stock tanks (respectively). We also quantified ambient fish abundance in close proximity to EMF devices deployed in Opinicon Lake (ON). We found no significant differences in a suite of blood‐based stress physiology biomarkers, behaviors, and putative aerobic capacities between EMF and control conditions over 8 days. Aerated mesocosms equipped with activated EMFs consistently had higher oxygen levels in the water than aerated controls. There were no differences in mortality during 3‐day oxygen depletion trials under EMF or control conditions, and we detected no differences in fish abundance when the devices were activated in the lake. Our findings suggest that deploying EMF devices in field settings is not likely to exert negative effects on exposed fish populations. Practitioner Points Low‐cost, low‐energy technological solutions to remediate aquatic hypoxia are sorely needed Electromagnetic fields (EMFs) can increase oxygen flux across air/water interfaces and increase dissolved oxygen levels We found no evidence of negative effects of EMFs on fish physiology or behavior and our results support their use in alleviating hypoxic conditions

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Physiology and Organismal Performance of Centrarchids

Cited by 23 publications

References 233 publications

The influence of flume length and group size on swimming performance in shortnose sturgeon Acipenser brevirostrum

The influence of flume length and group size on swimming performance in shortnose sturgeon Acipenser brevirostrum

The Effects of Low-Speed Swimming following Exhaustive Exercise on Metabolic Recovery and Swimming Performance in Brook Trout (Salvelinus fontinalis)

No evidence for collateral effects of electromagnetic fields used to increase dissolved oxygen levels on the behavior and physiology of freshwater fishes

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