RT info:eu-repo/semantics/article T1 Using Automatic Identification System (AIS) Data to Estimate Whale Watching Effort. A1 Almunia, Javier A1 Delponti, Patricia Adriana A1 Rosa, Fernando K1 Automatic identification system K1 Cetacean K1 Whale watching K1 Carrying capacity K1 Sustainability AB The growing concerns about the negative effects caused by whale watching on wild cetacean populations are evincing the need to measure whale watching effort more precisely. The current alternatives do not provide sufficient information or imply time-consuming and staff-intensive tasks that limit their effectiveness to establish the maximum carrying capacity for this tourist activity. A methodology based on big data analysis, using Automatic Identification System (AIS) messages can provide valuable vessel activity information, which is necessary to estimate whale watching effort in areas with cetacean populations. We used AIS data to automatically detect whale watching operations and quantify whale watching effort with high spatial and temporal resolution in the Canary Islands off the west African coast. The results obtained in this study are very encouraging, proving that the methodology can estimate seasonal and annual trends in the whale watching effort. The methodology has also proved to be effective in providing detailed spatial information about the whale watching effort, which makes an interesting tool to manage spatial regulations and enforce exclusion zones. The widespread use of AIS devices in maritime navigation provides an enormous potential to easily extend this methodology to other regions worldwide. Any public strategy aimed at the sustainable use of marine resources should enhance the use of this kind of information technologies, collecting and archiving detailed information on the activity of all the vessels, especially in marine protected areas. YR 2021 FD 2021 LK http://riull.ull.es/xmlui/handle/915/35971 UL http://riull.ull.es/xmlui/handle/915/35971 LA en DS Repositorio institucional de la Universidad de La Laguna RD 21-dic-2024