Análisis estéreo videos - DOVs and BRUVs

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Sumario

Introductory points for stereo-video analysis

Data management - How to store data correctly

= Folder structure and naming conventions

Calibration folder

Island folders - Darwin and Wolf

DOVs folder
BRUVs folder

Supporting data folder

Converting stereo-videos using Xilisoft Video Converter

Installing or renewing Xilisoft licence in your computer

Creating a stereo-video profile

Load and convert video files

Common errors to avoid while using Xilisoft

Calibration of camera systems

Calibrating stereo-video sets

Checklist to organise calibrations

Analysing calibration videos using CAL software (Quick guide)

Making point measurements

Starting a new project

Loading videos and synchronising

Setting adjustments

Generating stereo camera files

Saving results

Checking calibrations

Recording calibrations completed in the log

Troubleshooting for CAL

Analysing stereo-DOVs videos

Loading videos into EventMeasure

Converted videos

Unconverted videos

Editing information fields and the species list

Loading calibration files

Saving an EMObs file for current analysis

Setting up video analysis periods

Useful sources to aid in fish identification

Species of interest – large carnivorous fish

Identifying and counting individuals of interest

Measuring individuals of interest

Large schools of fish (20 individuals or more)

Non-interest species – herbivorous fish

Identifying and counting individuals of no interest

Measuring individuals of no interest

Gringos (Paranthias colonus)

Downloading GPS data and calculating distance in Basecamp

Analysing Gringo data – Counting individuals

Analysing Gringo data – Measuring individuals

Last steps - Checking your work

Quality control process

Tips and shortcut keys in EM

Renewing EventMeasure licenses

USB keys

Software keys

General troubleshooting in EM

One video is shorter than the other

Videos could not be converted and they are in MP4 format, but EM cannot read them

An EMObs file is opened in EM, but when attempting to review a point in the Data window an error window appears

EM is not recognizing the license key

Maintenance of gear used in stereo-video sampling

Materials needed for maintenance

GoBenthic housings maintenance

SeaGIS housing maintenance

Metal tools

Car battery and winch connections

SCUBA gear

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