Electronic Monitoring (Fisheries)

Electronic monitoring replaces or supplements a human observer with onboard cameras, GPS, and sensors recording gear deployment and retrieval, giving fisheries managers continuous, tamper-resistant video evidence of catch handling at a fraction of the cost of placing a trained person on every vessel for every trip. Systems are typically configured to trigger recording around specific events, such as net or longline hauling, rather than running continuously, with footage reviewed afterward by analysts (increasingly assisted by machine-learning image recognition trained to identify species and count discards) rather than monitored live. Coverage can reach effectively 100 percent of trips on a fleet at a cost well below equivalent human observer coverage, which has made electronic monitoring the preferred expansion path for fleets previously operating with little or no independent verification. Limitations remain real: cameras cannot replace a human's ability to collect biological samples, identify cryptic species on sight, or respond to an onboard emergency, so most modern programs treat electronic and human observer coverage as complementary tools rather than substitutes, deployed according to each fishery's specific risk profile.