This paper proposes a new network-based approach to analyse intergroup relations in fishing ports. The technique of clustered graphs is applied to the case of the Andalusian fishing ports to assess the balance between intra and inter-professional relationships. The patterns of sociability in Mediterranean and Atlantic fishing enclaves in the southern region of Spain were compared, examining their implications for participatory governance of marine resources. The personal networks of 53 fishermen, ship owners or skippers and key individuals of 18 Andalusian fisheries were analysed. The personal networks were compared in terms of fishing ground (Atlantic versus Mediterranean) and port type (by size and form of participation). The data of 45 individuals with whom each respondent usually interacts in the harbour was summarised in clustered graphs of intra-group and inter-group relationships between 8 professional roles in the harbour. Results show primarily that personal networks of Mediterranean ports are overall denser, in comparison with those of the Atlantic, which are more centralised and have a higher average betweenness. Secondly, in the Atlantic a clear difference of roles between ship owners and skippers is observed. A strong link between ship owners and the crew was found, and also between the ship owner and commercial roles in the Mediterranean. Small ports seem to be more apt for the artisanalisation of fisheries, as well as for the European Union’s Common Fisheries Policy.Consejería de Fomento y Vivienda de la Junta de Andalucía CP-2043/0073Consejería de Fomento y Vivienda de la Junta de Andalucía GGI3001IDI

In 1982, the Spanish government passed the Shipbuilding Industry Restructuring Act. In the mid-1980s, conflicts occurred at shipyards throughout the Spanish state. This article focuses on workers’ resistance to shipbuilding restructuring in the shipyard of Puerto Real (Cádiz, Spain). We discuss the causes behind the singularity of this episode of workers resistance to restructuring in Puerto Real during the 1980s, which stands out because of the size of the conflict and the radicalism of its collective action. We also explore social perceptions of violence among the parties involved in the protest and analyze the different trade union models involved in the conflict. We conclude that there is a strong relationship between the autonomy of workers’ structures and the radicalism of their methods of collective action.