Enumeration of Salmonids in the Okanogan Basin Using Underwater Video, Performance Period: October 2005 (Project Inception) - 31 December 2006.

Johnson, Peter N.; Rayton, Michael D.; Nass, Bryan L.; Arterburn, John E.

doi:10.2172/949218

Cited by 1 publication

(1 citation statement)

References 5 publications

(6 reference statements)

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“…Also, the cameras were reasonably priced in comparison with similar underwater video cameras described by other researchers in the aquatic literature, and this system can easily accommodate other projects because of the flexibility of the DVR. Digital video recorders have been used for recording fish (i.e., salmonid) passage at dams and small tributaries in the western USA (Johnson et al 2007), and our system is capable of this type of monitoring. The DVR was underutilized and could be used to capture instantaneous videos by detecting movement through onboard sensitivity controls.…”

Section: Resultsmentioning

confidence: 99%

A Digital Underwater Video Camera System for Aquatic Research in Regulated Rivers

Martin

Irwin

2010

N American J Fish Manag

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We designed a digital underwater video camera system to monitor nesting centrarchid behavior in the Tallapoosa River, Alabama, 20 km below a peaking hydropower dam with a highly variable flow regime. Major components of the system included a digital video recorder, multiple underwater cameras, and specially fabricated substrate stakes. The innovative design of the substrate stakes allowed us to effectively observe nesting redbreast sunfish Lepomis auritus in a highly regulated river. Substrate stakes, which were constructed for the specific substratum complex (i.e., sand, gravel, and cobble) identified at our study site, were able to withstand a discharge level of approximately 300 m3/s and allowed us to simultaneously record 10 active nests before and during water releases from the dam. We believe our technique will be valuable for other researchers that work in regulated rivers to quantify behavior of aquatic fauna in response to a discharge disturbance.

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Section: Resultsmentioning

confidence: 99%