“…The used spaces are defined qualitatively and quantitatively according to the presence of these barriers and the temporal context in which they could or could not be overcome (e.g., Neme and Gil, 2008;Borrero and Borrazzo, 2011;McNiven, 2015;Lovis and Whallon, 2016;Barberena et al, 2017;Franco et al, 2018) in interactions with the environment and with regard to the structure of available resources (Kelly, 1983;Kelly, 1995;Binford, 1990, Binford, 2001Bailey, 2004). In this case, the study of these barriers lies in understanding how marine fisher hunter-gatherers innovate to overcome such barriers and what subsistence and technological strategies were used and since when (e.g., Llagostera, 1982;Mandryk, 1993;Erlandson, 2001;Legoupil et al, 2011;Orquera et al, 2011;Zangrando et al, 2016) and how they define limits or not in the distribution of the archaeological record on multiple temporal and spatial scales (sensu Foley, 1981;Dincauze, 2000). In addition, such studies allow identifying particularities with respect to adjacent areas that are equally occupied, in what is understood as a hierarchy in the human use of various occupied spaces (Borrero, 1989;Borrero, 1994;Belardi, 2003;Borrero, 2004;Keegan et al, 2008), understanding archaeological sites as "distributed longterm observation networks of the past", making it possible to record the conditions of ecosystems and their period of time during human interactions (Sandweiss et al, 2020: 8276).…”