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Person

Marybeth K Brey

Fish Biologist

Upper Midwest Environmental Sciences Center

Email: mbrey@usgs.gov
Office Phone: 608-781-6243
ORCID: 0000-0003-4403-9655

Supervisor: Jon J Amberg
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To evaluate how bigheaded carps use a restored backwater habitat, their passages into and out of and residency within a backwater was monitored using acoustic telemetry. This dataset describes the results of this study and was used to compare activity of bigheaded carps between species, at a diel scale, among seasons, and how activity related of environmental conditions. Calculation of passages and residency are available in the thesis of Douglas Schultz (Southern Illinois University, 2006). http://fishdata.siu.edu/schultz.pdf
The dataset is comprised of river conditions at La Grange, Peoria, Starved Rock, Marseilles, and Dresden Island Locks and Dams, along the Illinois River. Data were recorded bihourly from 1 Jan 1985 – 31 Dec 2016. For each location, pool elevation (ft), tailwater elevation (ft), head height (ft; calculated by the difference between pool elevation and tailwater elevation), discharge (cfs; when available) and total gate openness (sum of all open gates in ft), are given, where available. Open river conditions were calculated (0 = closed, 1 = open) for each two hour time period. Dam openness was assessed using the U.S. Army Corps of Engineers thresholds for open river conditions at each location.
The effectiveness of an acoustic barrier to deter the movement of silver carp, Hypophthalmichthys molitrix, and bighead carp, H. noblis, was evaluated. A pond (10 m, x 5 m x 1.2 m) was divided in half by a concrete-block barrier with a channel (1 m across) allowing fish access to each side. Underwater speakers were placed on each side of the barrier opening and an outboard motor noise (broadband sound; 0.06 – 10 kHz) was broadcast to repel carp that approached within 1 m of the channel. Broadband sound was effective at reducing the number of successful crossings in schools of silver carp, bighead carp and a combined school. Repulsion rates were 82.5% (silver carp), 93.7% (bighead carp) and 90.5% (combined). This...
This dataset was used to evaluate bigheaded carp movement (net and total) between the upper and lower Illinois River and to create a multistate model in Program MARK to estimate movement probabilities among river pools.
Silver and bighead carp frequency detection was evaluated in response to 100 Hz to 9 kHz using auditory evoked potentials (AEPs). AEPs, consisting of measured minimum Sound Pressure Levels (SPL; dB re 1 ms-2) and Particle Acceleration Thresholds (PAT; dB re 1 ms-2). SPL and PAT were recorded every 100 Hz from 100 Hz to 1000 Hz plus 1500, 2000, 3000, 4000, and 5000 Hz for five individual Silver Carp and five individual Bighead Carp. Minimum detectable PAT and SPLs were measured at 100, 200, 400, 600, 800, 1000, 2000, 4000, and 5000 Hz for three individual Common Carp.
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