I found a page describing the uses and purposes of tags in whales, and how people can track the whales as they glide through their natural habitat. This is helping the conservation whales as well as the human knowledge about them and their way of living. But, as the webpage states: “Further work is needed to improve the scientific and conservation value of this technology.” what this means is that sometimes the tags stop working, and, therefore, the research is stops abruptly. Maybe sometime soon these devices get updated and these type of problems are solved.
In this image taken from the page mentioned above, the whole path taken by many whales is shown in the Gulf of Main, in the United States.
I think this page is very reliable because it belongs to the Center of Coastal Studies, whom’s bases are the study of Sea creatures and specifically whales.