The Fishing Ship is a naval unit in Age of Empires that gathers food from fishing spots. It is an upgrade of Fishing Boat and has more HP, speed and can carry 5 more fish (for a total of 20). It can be upgraded at the Dock in the Bronze Age. Boats are twice as resistant to conversion as regular units. Minoan naval units are much cheaper, while Yamato have more HP. The Hittites do not have access to Fishing Ships.
"The never-ending quest for food eventually enticed humans out onto lakes, rivers, and oceans in search of fish. Fish of greater size and variety and in greater quantity were often found in deeper offshore waters. Fishing ships, larger than small canoes, were developed to control larger nets. Fishing ships were able to hold greater quantities of processed fish (cleaned and salted at sea) before return to land was required."