JUVENILE BLUEBACK HERRING (<i>ALOSA AESTIVALIS</i>) SURVIVAL VIA TURBINE AND SPILLWAY<sup>1</sup>

Mathur, Dilip; Heisey, Paul G.; McGrath, Kevin J.; Tatham, Thomas R.

doi:10.1111/j.1752-1688.1996.tb03443.x

Cited by 4 publications

(2 citation statements)

References 7 publications

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“…After directing the ultrasonic field upriver, the percentage of out-migrating juvenile Blueback Herring that bypassed the turbine channel increased from 31.3% to 76.5%. At Crescent, this improvement in downstream passage through the main channel represents the potential survival of an additional 76,840 juvenile Blueback Herring, based on an out-migration of 1 million Blueback Herring (a similar magnitude to what was observed in this study), a short-term turbine passage survival of 96% for the two Kaplan-type turbines (Mathur et al 1996) and 70% for the two Francis-type turbines (Cada 2001), equal turbine use, and near 100% survival through the main channel. This study has demonstrated how pulsed ultrasound can improve downstream passage of juvenile Blueback Herring at hydropower dams when the ultrasonic field direction optimizes exposure to allow sufficient time for approaching fish to respond and avoid turbine intakes.…”

Section: Meanssupporting

confidence: 76%

Importance of Ultrasonic Field Direction for Guiding Juvenile Blueback Herring Past Hydroelectric Turbines

Gurshin¹,

Balge²,

Taylor³

et al. 2014

N American J Fish Manag

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Populations of Blueback Herring Alosa aestivalis, an important anadromous forage fish in the northeastern USA, have declined from historic levels. Measures to reduce mortality from many sources, including entrainment by hydroelectric turbines, are cited by fishery managers to be important to restoring populations. At the Crescent Hydroelectric Project (Crescent) on the Mohawk River, New York, pulsed ultrasound (122–128 kHz) was used to deter adult and juvenile Blueback Herring migrating out to sea from entering the intake channel to the headrace and turbines, where mortality may occur. To increase the deterrence rate, the sound field was extended further upriver to expose juvenile Blueback Herring to an increasing sound gradient as they migrate downriver and allow them more time to avoid the intake channel. When juvenile Blueback Herring were present upstream of Crescent and exposed to an ultrasound field, mean catch per unit effort (CPUE) by pelagic trawling in the main channel downriver of the ultrasound was 94% of the mean CPUE in the upriver trawl region and 250% of the mean CPUE in the intake channel. Repeated mobile echo sounder surveys revealed that the abundance of juvenile Blueback Herring averaged 35 times higher in the downriver main channel region than in the intake channel region. During the peak migration period of September 20 through October 14, 2012, continuous fixed‐location horizontal echo sounding showed the percentage of net downstream passage of juvenile Blueback Herring that bypassed the intake channel significantly increased from 31.1% to 76.5% after redirecting the ultrasonic field upriver. These results demonstrate that pulsed ultrasound, when properly directed, can be used effectively as a fish deterrent system to provide safe downstream passage of juvenile Blueback Herring at hydropower dams. At Crescent, this could increase annual survival by tens of thousands of fish or more. Received October 4, 2013; accepted August 26, 2014

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Section: Meanssupporting

confidence: 76%

Importance of Ultrasonic Field Direction for Guiding Juvenile Blueback Herring Past Hydroelectric Turbines

Gurshin¹,

Balge²,

Taylor³

et al. 2014

N American J Fish Manag

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“…, ; Mathur et al. , ), little information is available on such estimates for pumped storage facilities.…”

mentioning

confidence: 99%

Entrainment of Juvenile and Adult American Shad at a Pumped Storage Facility

Mathur¹,

Heisey²,

Royer³

et al. 2018

N American J Fish Manag

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The American Shad Alosa sapidissima has been targeted for restoration to the upper Susquehanna River, and entrainment losses at hydroelectric facilities on the river, including the Muddy Run Pumped Storage Facility, are of concern for the potential growth of the American Shad population. Based on the integration of pumping volume, time of entrainment, and literature-reported diel emigration of juvenile American Shad, the entrainment rate (N = 145; 53 exposed to pumping) was estimated at 3.5%. The entrainment rate for adults (N = 507) was estimated at 0.3-3.9%. Using multistate mark-recapture models, the estimated entrainment probabilities (Ψ) of radiotagged juveniles were higher during periods of extended pumping (>1 h; Ψ = 0.093; 95% confidence interval [CI] = 0.054-0.156) than at periods of no pumping or short-duration pumping (<1 h; Ψ < 0.0001; 95% CI = 0.0-0.001); the high extended pumping occurred between 2300 and 0600 hours. Entrainment probabilities for adults were low (Ψ < 0.02); the highest probability occurred for fish detected downstream of the intake during the peak portion of the run (Ψ = 0.015; 95% CI = 0.004-0.047). Entrainment probability for most adult fish did not differ from zero. The low values of Ψ for both life stages were attributed to (1) the deep location of the intake (intake ceiling >11.7 m below the water surface), (2) the surface orientation of American Shad (upper 3.1 m), (3) the low overlap between high-volume pumping and peak emigration/migration times, (4) the pumping volume relative to prevailing river flows, and (5) the prolonged, robust swimming speed of American Shad, particularly that of adults (>2.2 m/s), which exceeded the intake velocity (0.2-0.9 m/s). Entrainment of juveniles increased with co-occurrence of low incoming river flows, high pumping volume, and peak emigration times. Quantification of migratory species' entrainment at pumped storage facilities requires integration of diel migration/emigration times with the frequency, timing, and duration of pumping volume.

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Effects of plunge pool configuration on downstream passage survival of juvenile blueback herring

Castro‐Santos

Mulligan

Kieffer

et al. 2021

Aquaculture and Fisheries

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JUVENILE BLUEBACK HERRING (ALOSA AESTIVALIS) SURVIVAL VIA TURBINE AND SPILLWAY¹

Cited by 4 publications

References 7 publications

Importance of Ultrasonic Field Direction for Guiding Juvenile Blueback Herring Past Hydroelectric Turbines

Importance of Ultrasonic Field Direction for Guiding Juvenile Blueback Herring Past Hydroelectric Turbines

Entrainment of Juvenile and Adult American Shad at a Pumped Storage Facility

Effects of plunge pool configuration on downstream passage survival of juvenile blueback herring

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JUVENILE BLUEBACK HERRING (ALOSA AESTIVALIS) SURVIVAL VIA TURBINE AND SPILLWAY1

Cited by 4 publications

References 7 publications

Importance of Ultrasonic Field Direction for Guiding Juvenile Blueback Herring Past Hydroelectric Turbines

Importance of Ultrasonic Field Direction for Guiding Juvenile Blueback Herring Past Hydroelectric Turbines

Entrainment of Juvenile and Adult American Shad at a Pumped Storage Facility

Effects of plunge pool configuration on downstream passage survival of juvenile blueback herring

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Product

Resources

About

JUVENILE BLUEBACK HERRING (ALOSA AESTIVALIS) SURVIVAL VIA TURBINE AND SPILLWAY¹