The objectives of this study are to examine the main issue that provoke social movement of fishermen in West Sumatra, to identify the related actors, and to analyze the advocacy strategy carried out by fishermen. This research was conducted in July 2019 and took place in two locations, namely the City of Padang and West Pasaman Regency. The study used qualitative approach. From this study, it is revealed that the main issue that provoke social movements in West Sumatra was the issue of Regulation No. 71 of 2016 by the Minister of Maritime Affairs and Fisheries related to the prohibition of certain fishing gear. This regulation prohibits the use of 4 mm mesh size of the net and the use of lamps in operating the liftnet which reaches up to 25-30 thousand watts of power. This regulation has created a huge burden to fisherman’s work. The Other issue that is also triggering the movement was the arrestment of 6 fishing boats on June 11, 2016. Meanwhile, the main actors who are directly related to this movement are fishermen who are using liftnet (bagan). These actors can be divided into two main categories, namely movers and "participants". The main tactic used in social movements was demonstration.

Relations between humans and social groups always involve power. Power exists in all fields of life; it includes the ability to govern and also make decisions that directly influence the actions of others. This study aims to determine how social interaction and power practices between the crew and shipowner; and between crews on small vessels. This research was conducted with a descriptive-qualitative approach using a case study strategy. The study was conducted in Muarareja Urban Village, West Tegal Subdistrict, Tegal City, Central Java Province. The results showed that small scale fishers in Muarareja Urban Village, Tegal City can be categorized as daily fishers and weekly fishers. The practice of power between the owner and the daily crew on the small vessels has an exploitative relationship dimension. This relationship is indicated by the compulsion of the shipowner to the crew to keep fishing even though the weather is bad or during a low season. The practice of power between the shipowner and the crew was strongly influenced by the shipowner's debt to the Bank or middleman, which must be paid every month. On the other hand, the practice of power exercised by the weekly fishers to the shipowner is by being able to resign and choose to work with other shipowners easily. If the crew feels uncomfortable working on a ship, they will look for a new shipowner.