Development of a data-taking and data-recording (archival) fish tag to be attached to or implanted in a large marine animal such as a tuna. When recovered in the fishery, the tag would be read out, making available a record of environmental variables. Records of temperature, pressure, and ambient light would allow inference of the animals 3-dimensional track of depth (from pressure), latitude (from temperature vs depth), and longitude(from sunrise and sunset times) for periods up to one year.Project Proceeded to Phase 2
