Figure 6
A line graph with the x-axis labeled 'Year' ranging from 2019 to 2025 and the y-axis labeled 'Term' listing 'maritime industry', 'students', 'teaching', and 'ships'. The graph shows four data lines representing the frequency of these terms over the years. The term 'maritime industry' appears in 2024 with a frequency of 1. The term 'students' appears in 2021 with a frequency of 6. The term 'teaching' appears in 2022 with a frequency of 1. The term 'ships' appears in 2020 with a frequency of 1. All values are approximated.Thematic mapping of keywords generated by using Biblioshiny (“Trend Topics” function) (minimum word frequency: 2), based on dataset of 46 peer-reviewed articles