Ichthyoplankton survey in Oshoro-maru cruise (C040) 2017

Ichthyoplankton survey was conducted in the northern Bering Sea adjacent to the Bering Strait and St. Laurence Island, on July 9-22, 2017, onboard the T/S Oshoro-maru (Hokkaido University). Ichthyoplankton was collected by bongo net (0.7 m diameter, 0.505 mm mesh), MOHT (Matsuda-Oozeki-Hu-Trawl net; 2 m2 mouth opening, 1.4 mm mesh), and ring larvae net (1.3 m diameter, 2.0 and 0.33mm mesh). Of these, bongo and MOHT nets were towed obliquely from surface to 15 m and 10 m above the sea floor, respectively. The ring net was towed sea surface horizontally for 10 min.