Critical Swimming Speed and Behavior of Juvenile Shovelnose Sturgeon and Pallid Sturgeon

Adams, Sally; Adams, Ginny L.; Parsons, Glenn R.

doi:10.1577/1548-8659(2003)132<0392:cssabo>2.0.co;2

Cited by 63 publications

(86 citation statements)

References 20 publications

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“…We do not advocate against lowvelocity areas, but rather it appears that the heterogeneous nature of hydraulics in the basins of the vertical slot fishway studied here provides an adequate quantity of low-velocity refuges. Further, sturgeon are capable of station-holding to conserve energy in highvelocity areas (Adams et al, 2003;Geist et al, 2005). In terms of a time optimisation strategy, the absence of turning basins would be beneficial as the addition of large low-velocity regions appears to delay passage, presumably because of the absence of high velocity cues (Marriner et al, 2014).…”

Section: Discussionmentioning

confidence: 99%

Swimming activity and energetic costs of adult lake sturgeon during fishway passage

Thiem

Dawson

Hatin

et al. 2016

Journal of Experimental Biology

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Fish migrations through riverine systems can be energetically demanding, and the presence of fishways to facilitate upstream passage can add an additional energetic cost that may directly affect fitness. Successful fishway passage is a function of the ability of fish to select appropriate paths and swimming strategies that do not exceed their swimming capacity. Triaxial accelerometers were used to estimate the energetic expenditure of adult lake sturgeon (Acipenser fulvescens) swimming through a vertical slot fishway, to determine whether individual behaviour or path selection, resulting in differences in cumulative energy use, explain fishway passage success. Most individuals attempted to pass the fishway (n=30/44; 68%), although successful passage only occurred for a subset of those attempting (n=7/30; 23%). High-speed swimming was rarely observed during upstream passage through fishway basins, and was of short duration. Two turning basins delayed passage, subsequently resulting in a higher energetic cost. The rate at which energy was expended did not differ among successful and unsuccessful individuals, although successful sturgeon exhibited higher costs of transport (42.75 versus 25.85 J kg). Energy expenditure metrics were not predictive of successful fishway passage, leading us to conclude that other endogenous or exogenous factors influence passage success. In a practical application of field measurements of energy expenditure, we demonstrate that fishway passage through a structure designed to facilitate migration does result in an energetic loss for lake sturgeon (3249-16,331 J kg −1 ), equivalent to individuals travelling 5.8-28.2 km in a lentic system.

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Section: Discussionmentioning

confidence: 99%

Swimming activity and energetic costs of adult lake sturgeon during fishway passage

Thiem

Dawson

Hatin

et al. 2016

Journal of Experimental Biology

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“…Swimming requires the integration of numerous neuromuscular processes (Thomas and Donahoo 1977;Taylor and McPhail 1985;Hawkins and Quinn 1996;Adams et al 2003) and is considered a relevant measure of an organism's fitness and physiological compensation to its environment (Huey and Stevenson 1979;Arnold 1986;Parsons 1990;Ortego et al 1994;Parsons and Carlson 1998). Swimming performance tests have been shown to be sensitive indicators of sublethal exposure to contaminants.…”

Section: Discussionmentioning

confidence: 99%

The Effects of a Sublethal Dose of Botulinum Serotype E on the Swimming Performance of Channel Catfish Fingerlings

Beecham¹,

Thomas²,

Gao

et al. 2014

J Aqua Anim Hlth

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Visceral toxicosis of catfish (VTC) is a disease of cultured Channel Catfish Ictalurus punctatus in the Mississippi Delta region and surrounding states. The etiology of VTC is associated with botulinum serotype E (BoNT/E), which causes blockage of acetylcholine release at the neuromuscular junction, leading to weakness and paralysis of skeletal muscles (including those involved in swimming). This study attempted to determine if sublethal exposure to purified BoNT/E caused reductions in swimming performance and metabolism of Channel Catfish. Catfish swimming performance was assessed on stocker-sized Channel Catfish (mean weight ± SD, 62.35 ± 2.5 g) with 10 sham-injected fish and 10 fish injected with a sublethal dose of BoNT/E. A modified Blazka-type swim chamber was used to assess swimming performance. We injected Channel Catfish with either 0.015% trypsin or 400 pg purified BoNT/E digested with 0.015% trypsin intracoelomically, then acclimated an individual catfish in the swim chamber for 17 h prior to the swimming trial. Water temperature was maintained at ∼28°C, and dissolved oxygen (DO) was between 4 and 7 mg/L. A critical swimming speed (Ucrit) protocol was followed, and DO and temperature were monitored every 2 min throughout the swim trial. Cost of transport was calculated from the oxygen consumption at each test speed (10-70 cm/s). There was a statistical difference between the Ucrits (P = 0.0034), but no differences were found between the cost of transports (P = 0.67) of the sham-injected and BoNT/E groups. There was a difference in the cost of transport as it relates to the speeds tested (P < 0.0001), cost of transports being highest at low speeds and decreasing as speed increased. These results indicate that botulinum E interferes with the swimming speed of the catfish, which could contribute to the mortality from the disease of VTC and potentially make the fish more susceptible to predation. Received September 20, 2013; accepted February 14, 2014.

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“…This estimate is based on data for shovelnose sturgeon, which have nearly identical swimming endurance to pallid sturgeon (Adams et al 1997). Shovelnose sturgeon >530 mm SL are capable of swimming at 49-71 cm/s for 60 min ) and 65-116 cm/s for 15 min (Adams et al 2003). An extrapolated swim speed of 120-150 cm/s for 1 min would be conservative.…”

Section: Discussionmentioning

confidence: 99%

Evaluation of Potential Impacts of the Lake Maurepas Diversion Project to Gulf and Pallid Sturgeon

Kirk¹,

Killgore²,

Hoover³

2008

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Abstract:The impacts to Gulf and pallid sturgeon from a proposed Mississippi River water diversion into the swamps bordering Lake Maurepas were evaluated. Gulf sturgeon were unlikely to be affected by the diversion due to characteristics of their life history. Adult and subadult pallid sturgeon were relatively abundant in the proposed project area and could be affected by the proposed diversion. A risk assessment was performed. Juvenile pallid sturgeon were judged to have a "low" entrainment risk due to low likelihood of their occurrence in the project area. Risk of entrainment by adults and subadults was judged "medium" due to their relatively low burst swimming speeds compared to intake velocities. Management recommendations were made to reduce or mitigate chance of their entrainment.

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Critical Swimming Speed and Behavior of Juvenile Shovelnose Sturgeon and Pallid Sturgeon

Cited by 63 publications

References 20 publications

Swimming activity and energetic costs of adult lake sturgeon during fishway passage

Swimming activity and energetic costs of adult lake sturgeon during fishway passage

The Effects of a Sublethal Dose of Botulinum Serotype E on the Swimming Performance of Channel Catfish Fingerlings

Evaluation of Potential Impacts of the Lake Maurepas Diversion Project to Gulf and Pallid Sturgeon

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