Abstract
There are many problems awaiting solution to keep health of crew in the present pelagic fishing boats. This paper summarizes the results investigated in the practices of oceanographic observations, exploratory tuna long-line fishings, and trawlings in the waters of Bering Sea and tropics during the extensive cruises, 1963-65, on board the fishery training ship belonging to the Shimonoseki University of Fisheries. From the data obrained we conclude as follows: -1. Peculiarities of patients varied with the term of navigation, cruising areas, nature of operation, conveniences in the ship, the number of embarking persons, condition of health after embarkment, etc. 2. Three main diseases in the rate of outbreak were gastro-intestinal, respiratorical, and surgical. 3. The rate of crew's gastro-intestinal diseases was higher than students' and of student's respiratorical diseases was higher in tropics than in cold waters, and student's surgical diseases increased as the navigation was prolonged, compareing with crew's.
