抄録
1. In spite of its importance, the analysis of the economic structure of the society of isolated islands has been often neglected in the Japanese geographical circle. The present paper intends to point out the problem on which the society of isolated island faces now, by means of the analysis of the economic structure.
The Goto Islands, located about 90km west of Nagasaki City, capital of Nagasaki Prefecture, consist of about 200 islands in large and small sizes, though men live only in 34 islands.
O-shima and Aka-shima, which are located about 15_??_18km south of Fukue City, principal city of Fukue Island, the main islad in Goto Islands, are both very small volcanic islands composed of the basic lava.
2. As the less productive forces of the agriculture and fishery in both islands have disturbed the accumulation of capital essential to the expanded reproduction, that is, improvement and developement of the means of production, the economical poverty has become unremovable in these island societies after all.
3. Since the end of Taisho period (1912_??_1926), many island people of productive ages have moved to Nagasaki City to be engaged in Isei Pair Trowl Fishery.*
The economy of island society composed of old men and children could be hardly supported by the money sent from emigrants. Then the constitution of the population in both islands has a typical figure of emigrated area with a remarkable hollow in the productive ages.
As the people of isolated island societies have emigrated in many cases through the blood and regional relationship between the pioneers, we can point out the characteristics of the emigration as follows.
(i) Immigrated area → Nagasaki City → a concentrative type in the same area.
(ii) Residential quarter → Inasa-machi, Nagasaki City → a concentrative type in the same quarter.
(iii) Occupation Isei Pair Trowl Fishery → a concentrative type in the same occupation.
(iv) Situation → Fishing laborer → physical labor type.
