vessel data for "Hidden boats, visible pressure: accounting for small non-AIS vessels in assessments of anthropogenic drivers of Indo-Pacific humpback dolphin distribution"

Description of the data and file structureThe dataset "prd_all_vessels_all_2025-09-27.RData" contains locations of all detected vessels in Pearl River Delta region from high-resolution satellite images between 2016-2025, vessels are classified into three classes: fishing, recreational and other (i.e. vessels that don't belong to the first two classes).
Files and variablesFile: prd_all_vessels_all_2025-09-27.RDataDescription: The dataset contains locations of all detected vessels in Pearl River Delta region from high-resolution satellite images between 2016-2025.
Vessel category: fishing, recreational, other (i.e. vessels that don't belong to the first two classes) and unknown (i.e. vessels that were not able to be assigned a class).
Vessel size: were measured in meters.
CRS: epsg 32649
Code/softwareThe .RData can be viewed using R language programs.
Access informationOther publicly accessible locations of the data:
noneData was derived from the following sources:
Google Earth Pro and Jilin-1 website