Science8 min read
Counting Fish With Sound: Acoustic Surveys Explained
How do you count fish you can't see? Acoustic surveys use sonar to turn echoes into biomass estimates. Here's how echosounders work — and their limits.
Dr. Mara Ellison ·
2 articles
How do you count fish you can't see? Acoustic surveys use sonar to turn echoes into biomass estimates. Here's how echosounders work — and their limits.
Dr. Mara Ellison ·
How drones turn a seaweed farm from guesswork into measurement — canopy mapping, biomass proxies, storm damage surveys and a flying workflow that works.
Naomi Reyes ·