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Development of New Methods for Quantifying Fish Density Using Underwater Stereo-video Tools

Article DOI: 10.3791/56635-v • 09:32 min • November 20th, 2017
November 20th, 2017 •
1, 1, 2, 1
1Moss Landing Marine Laboratories, 2The Nature Conservancy

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We describe a new method for counting fishes, and estimating relative abundance (MaxN) and fish density using rotating stereo-video camera systems. We also demonstrate how to use distance from camera (Z distance) to estimate species-specific detectability.

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Quantifying Fish Density Underwater Stereo-video Tools Video Analysis Technique Density Estimation Mean Length Estimation Species Composition Estimation Fisheries Management Deep-water Rocky Reefs Accurate Density Estimates Fish Extraction Field Data Collection Stereophotogrammetry Camera Calibration Project Folder Creation Video And Calibration Files Stereo Measurement Software Left And Right Camera Files Loading Movie Sequence Definition
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