Skip to main content
Crew on the R/V Sea Wolf count fish during a trawl survey. Environmental DNA could be a cost-effective way to improve these surveys. Credit - MONMOUTH UNIVERSITY URBAN COAST INSTITUTE
sprep-pa

Estimating the number of fish in the sea is a wet, cold, and inexact business. To gauge how populations are faring—a critical part of managing fisheries—researchers typically drag a large net behind a ship, counting and measuring what they catch. But these trawl surveys only provide a rough indication of fish populations and they cost tens of thousands of dollars a day. 

Original Article