The fish counting process
The sonars record video material in Miramichi River 24 h a day, 7 days a week in two locations in 2017.
1) Southwest Miramichi @ Blackville
2) Little Southwest Miramichi @ Upper Oxbow
We visit our study sites daily to obtain the video data. The data are processed in our office at the MSA hatchery in South Esk, where professionals analyse the material and measure all the fish from the videos.
Each day, we know how many fish swam through our study site the day before and their sizes.