The project will initiate, build and strengthen future long-term collaborations and interaction with Japanese researchers working in relevant fields of aquaculture related topics. We seek to achieve this by having Japanese and Norwegians scientists visiti ng their respective institutions and present relevant research topics, challenges and activities important for the aquaculture industry in both countries. The Norwegian and Japanese research groups will take advantage of several ongoing RCN funded project s that seeks to understand the Atlantic post-smolts environmental requirements and physiological responses during intense rearing in Closed-containment Systems (CCS). Based on research specialties of the Norwegian and Japanese scientists participating in the project, we will first look at the endocrine pathways of the interaction between salinity and growth in salmon. We will further expand by attempting to integrate endocrine pathways involved in stress, allostasis and fish welfare. It will also be a goa l to facilitate exchange of graduate students and provide them with the resources needed to complete small student projects. Hence, if funded, this project will provide an important opportunity for developing strong long-term and functional research colla borations between participating reseacrh groups in Norway and Japan.