Pressure lamp that uses kerosene as fuel has been used for the fishing lights for more than a half century at the Lake Tanganyika. Fuel cost increasing due to high oil prices have put pressure on the management of the dagaa fishing vessels.

On February 2013, LED light has been introduced to a few dagaa fishing vessels as the fishing lights for the first time in Kigoma town, Tanzania. This paper reports the changes of cash flow of the fishing vessels operation by newly introduced LED fishing light. Fisheries have increased and operating costs of the vessels have decreased with the LED fishing lights. The cost related to the fishing light decreased remarkably. It is suggested that this LED fishing light might bring a preferable effect to raise the fishermen’s cash income. On the contrary it might lead resource depletion. Some new regulations are required to prevent the resource depletion.

BSAI Crab Rationalization Program started in 2005/2006 fishing year. The most influential component of the program was the coops organized by 4 and more fishing enterprise or fishermen with IFQ. The merits of coops are arranging fishing vessels for harvesting members’ IFQs and that they can share the information with each other. By them, safety and efficiency of crab fisheries are realized without fruitless competition. The fishing vessels have been decreased and fishing seasons have been longer. In 09/10 fishing year the biggest coop has appeared with 70% of the total IFQ. Only this coop can make correct negotiate on prices with the processing companies. Because of these merits, almost all fishing enterprises have become members of coops.

Novel prize winner Elinor Ostrom established theoretically and empirically that common-pool natural resources (commons) can be sustainably managed through resource users’ voluntary cooperation. Fisheries management in Japan is often described as “Japanese-style” in that fishermen’s voluntary cooperation is playing important role, keeping harmony with governmental regulations. This paper examined the applicability of Ostrom’s commons management theories to Japanese-style fisheries management. Literature reviews and preliminary consideration on published materials regarding current state of Japan’s fisheries management confirmed that a set of her ideas such as design principles, social capital, and polycentricity are in conformity not only with the management of inshore fisheries but also with those of offshore fisheries.