Horizontal distribution and dial migration of a mesopelagic micronektonic fish, Diaphus suborbitalis, in Suruga Bay, Japan
1980
Go, Y.B. (Jeju Univ., Jeju (Korea R.). Dept. of Marine Resources)
This study was conducted to describe the horizontal distribution and diel vertical migration of Diaphus suborbitalis in Suruga Bay, Japan. Collection of mesopelagic fish were made on the cruises of the R/V "Tansei Maru", the Ocean Research Institute, University of Tokyo, and the bottom trawl, from May 1971 to April 1977. The species were distributed at about 200-400 m depth near the sea bottom of the continental slope in the daytime, and began to ascend around sunset with other organisms forming the sound scattering layer. After that the species were mostly distributed at about 50m depth at night, and began to descend from dawn, and then returned to the habitat at the daytime.
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