IDENTIFICATION OF DWRS FISHING GROUNDS USING AIS DATA
The workshop is aimed to analyze AIS data and map fishing effort, sharing R scripts. First, a theoretical session will be dedicated to show AIS-based scientific applications in fishery management and introduce the R processing workflow. Two practical sessions will thus be carried out to differentiate according to the programming levels of participants and break the processing workflow into: (i) management/classification of AIS data, and (ii) estimation of fishing effort and its mapping. Course material is available at https://github.com/irbimMAPS/dwrs_workshop_2022.
Contact to: maps.irbim@irbim.cnr.it
Processing and classification: from AIS raw data to fishing points. Starting from AIS pings, the workflow is based on the procedures available at https://zenodo.org/record/4761890. It was developed on historical annotated data of the Adriatic Sea and aims to (i) identify individual fishing trips, (ii) classify them on a monthly basis according to predefined gear classes, and (iii) identify fishing pings/hauls. We will also spend some time understanding AIS datasets and R scripts, preparing you to handle your own data in a reproducible manner.
Mapping deep-water fishing grounds: from fishing tracks to fishing effort maps. Starting from pre-classified deep-water fishing tracks, R scripts used to estimate and map metrics of fishing pressure in the context of the GFCM-DWRS framework will be introduced and shared. The session will be focused on a pilot GSA. An hands-on exercise related to all the topics covered during the day is also foreseen.