In this paper we attempt to assess and expand the information that can be drawn from the systematic analysis of artefacts with a reduced degree of formatization, such as the case of lithic sinkers. In Fuego-Patagonia these artifacts are found in both early and late maritime contexts and have generally been classified as sinkers for line fishing on the basis of morpho-functional and ethnographic criteria. At the same time, the use of fishing nets is reported among ethnographic terrestrial hunter-gatherers but no mention exists for the use of net sinkers. Ascertaining whether archaeological specimens were used as net or line sinkers is made difficult by a lack of preservation of cordage and the fact that similar artifacts in other regions have been interpreted both as net sinkers and as artifacts unrelated to fishing activities. In this article we attempt to evaluate if differences can be established between both uses and, in this way, approach their role in the subsistence activities of maritime and terrestrial hunter-gatherers.