Network dataset for research paper 'Socialecological affective arrangements: diving with a small sea of many seas' (under review). Contains a structured dataset of nodes and edges to be analysed with network algorithms. Original data was collected together with Dr. Paula Zuluaga-Guerra through eight qualitative interviews in the Mar Menor region (Murcia, Spain) in March 2022. The data was qualitatively analysed in October 2025, extracting the structured set of relations and nodes contained in this file. Relations (edges) refer to affects and emotions between socialecological entities and practices (nodes). The theoretical and methodological framework for this proposal is detailed in the paper together with an empirical illustration.