DESCRIZIONE
A remote server is capable of acquiring income distribution of a fishing ground. A remote server (5) receives information on positions of fishing boats (4), information on operating days of the fishing boats (4), and income and fuel consumption of the fishing boats (4) on each operating day or at each position of the operating day. The remote server (5) outputs the income and the fuel consumption for each operating day and makes an income distribution map (56) expressing distribution of corbiculae. The remote server (5) outputs the number of times of receipt of the information on the positions on each operating day on the map and makes a collection spot distribution map (55) expressing distribution of the collection spots by the fishing boats (4). [Image Omitted]