Cumulative and average beam and pelagic trawling fishing hours in the Adriatic Sea for the period 2015-2022

An enhanced version of the R4AIS workflow (Galdelli et al., 2021) was used to process T-AIS data, with a poll frequency of 5 min, of fishing vessels operating in the Adriatic Sea during 8 years (2015-2022). Data of vessels categorized as beam trawlers and pelagic trawlers were aggregated to obtain cumulative (fahs) and average (mfahs) fishing hours by fishing category at 0.1°. Maps of beam and pelagic trawling fishing activity were created at 0.1°.本研究采用改进版的R4AIS工作流（Galdelli等，2021）对T-AIS数据进行处理，所用数据集为2015至2022年八年间在亚得里亚海作业的渔船的相关记录，数据采样频率为5分钟。随后，本研究对归类为桁杆拖网渔船（beam trawlers）与中层拖网渔船（pelagic trawlers）的船舶数据进行聚合，以0.1°为空间网格分辨率，按捕捞类别分别统计得到累计捕捞时长（fahs）与平均捕捞时长（mfahs），并生成了分辨率为0.1°的桁杆拖网与中层拖网捕捞活动空间分布图。