More ocean data has been collected since the start of the 21st century than for the entire 20th century (Brett et al. 2020). The availability of massive ocean information opens the door for new analysis and applications that are previously impossible because of data limitations. In this talk, I will demonstrate the utility of combining datasets generated by old and new monitoring technologies. In particular, I will focus on the following applications: 1) combining information from various monitoring technologies to better understand fish stocks in California (Caselle and Cabral, 2018), 2) leveraging data from multiple satellite-based technologies to evaluate fisheries and conservation policies (e.g. Cabral et al. 2018, Bradley et al. 2019), and 3) combining vessel-tracking data, vessel information, and knowledge from field practitioners to detect fishing vessels potentially engaged in forced-labor (McDonald et al. 2021). My goal is to expose the audience to various applications of satellite-derived fishing events, particularly in generating new insights towards better managing and monitoring human activities in the ocean.