October 5, 2020 — In August, the world turned its attention towards the tiny Galápagos archipelago when nearly 300 Chinese-flagged vessels were found fishing near the Ecuadorian EEZ that encompasses the biologically-significant islands, raising concerns about illegal and unregulated fishing. A new report by environmental non-profit Oceana claims that the vessels, now moving south through Peru, may be purposefully turning off their satellite trackers to avoid detection.
Prompted to investigate by past illegal fishing in the same area in 2017, Oceana analyzed data from satellite transponders on the squid-fishing vessels over a one-month period to track vessel movements and map fishing activity.
Automatic Identification Systems
Automatic Identification Systems (AIS) on commercial vessels were originally used by ships to avoid collisions. A vessel’s identity, speed and location are automatically transmitted to satellite and terrestrial receivers at regular intervals. This publicly-available information is used by Global Fishing Watch, a public mapping tool developed by Oceana in collaboration with Google and SkyTruth, to visualize where vessels stop to fish, allowing for more scrutiny of potentially-illegal fishing activity.