Abstract⎯National fish consumption is increasing every year, both sea fish and fish farming. That is because the appeal and invitation of the government to consume fresh fish (white meat) which contains lots of vitamins and protein. Milkfish is one of the most consumed fish species because it is easy to get and the price is relatively cheap. One of the biggest milkfish producers in East Java is located in Gresik Regency. The fulfillment of milkfish consumption needs depends on its productivity. Milkfish productivity depends on the area of the pond. The greater the land area, the more milk fish can be produced. However, milkfish farming is often constrained by the size of ponds, so the amount of milkfish harvest is also limited. In this study, the goal programming method is used to obtain several objectives, namely maximizing profits, minimizing capital, minimizing production costs and inventory costs, taking into account the changing demands in each harvest period, population density, milkfish survival rate and growth rate. The profit from selling the harvest can be optimized by selling some fish (on demand) and re-raising the remaining milk fish from the harvest (inventory) for resale in the next harvest period. Although production costs and inventory costs increase with more food, these benefits will be maximized compared to selling the entire harvest during that period. Because the greater the weight of milk fish, the higher the selling price. So the benefits will be far more leverage. Keywords―Area of The Pond, Demand, Goal Programming, Growth Rate, Milkfish, Population Density, Survival Rate. I.INTRODUCTION CCORDING to the Maritime and Fisheries Ministerial Regulation No.29/Permen-KP/2016, fisheries are all activities related to the management of fish resources and the environment, from pre-production, production, processing and marketing carried out in a fisheries business. Whereas fisheries management is all efforts, including integrated processes in information gathering, analysis, planning, consultation, decision making, allocation of fish resources, and implementation and law enforcement of laws and regulations in the field of fisheries, which are carried out by the government or other authorities which is directed towards achieving sustainable productivity of aquatic resources and agreed objectives. The industrialization of marine and fisheries according to Permen KP No. PER.27/MEN/2012 is the connection between upstream and downstream production systems that are useful to increase the scale and quality of production, productivity, competitiveness, and value added in marine and fisheries resources in a sustainable manner [1]. The potential of Indonesian fisheries is huge so that it can provide maximum benefits in a sustainable manner for the country and the community, if managed properly and responsibly. It has also been mandated in Law of the Republic of Indonesia Number 45 of 2009 article 6 paragraph 1 which emphasizes that fisheries management is aimed at achieving optimal and sustainable benefits, and ensuring the preservation of fish resources. However, up to now most of the national fisheries activities have in fact not shown optimal, sustainable performance and guarantee the preservation of fish resources, both in capture fisheries and aquaculture [2]. The need for fish consumption continues to increase along with increasing population growth. On the other hand, fishermen's catch tends to decrease so that the dependence on fish farming is higher. Because of these limitations, the A Goal Programming Model for Optimizing The Management of Brackish Water Milkfish Ponds in Gresik M. Fatkhur Rohman, Moses Laksono Singgih and Udisubakti Ciptomulyono Department of Industrial and Systems Engineering, Institute of Teknologi Sepuluh Nopember, Surabaya e-mail: udisubakti@gmail.com (a) (b) Figure 1. (a) National Fish Consumption (b) Land and sea fisheries production.