Japan Ministry of Foreign Affairs: Joint Communique of the Government of Japan and the Government of the People's Republic of China
“The Government of Japan and the Government of the People's Republic of China have agreed that, with a view to further promoting relations between the two countries and to expanding interchanges of people, the two Governments will, as necessary and taking account of the existing non-governmental arrangements, enter into negotiations for the purpose of concluding agreements concerning such matters as trade, shipping, aviation, and fisheries.”
[write analysis]
The codification of Japan and China's normalization agreement is contained in a semi-broad document published in 1974. Furthermore, most of the normalization is centered on remediating the harms of Japan's imperial history and technicalities of territorial disputes.
However, one section of the 1972 normalization agreement mandates “agreements concerning matters such as trade…and fisheries” as a key part of fostering positive diplomatic relations. Therefore, this sets the fishery industries of both nations as central to their respective economic prosperity; consequently, this implies a subsequent increase of positive economic and interpersonal relations between Chinese and Japanese fishermen and fisheries operating in the East China Sea.