The most widespread mass perch species of this genus in Primorye with insignificant commercial significance in game fishing in Peter the Great Bay. Body length is up to 32 cm. Inhabits depths of up to 30 m. Is a sedate species. Begins active life only at temperatures above 10-12oC, i.e. from early June to early November. All the rest of the time the perch moves very little and hides in-between rocks and cliff fissures. When seawater warms in summer, the fish start emerging from their shelters to spread over rocky massifs from 0 to 25 m deep. In this case, in daytime the bulk of perch occurs at 8-15 m deep. At nighttime, some specimens move with sunset to Zostera thickets, where they stay all night to return with sunrise. The bulk of the school is distributed: about 20 percent rise to depths ranging from 0 to 5 m, 60 percent descend to 15-25 m, and the rest remain at 5-15 m deep. The remigration is rapid. The Oriental perch is an omnivorous species, but chiefly feeds on fish and crustaceans. At the age of twelve, it is 25 cm long. Mating and fertilization with subsequent spawning of larvae takes place in late October. The larvae would rise to the upper water layers to be passively scattered by currents. Schools of grown fry comprising 3-50 specimens would swim in Zostera thickets at 2-6 m deep. In late August and early September, they would move to adult habitats. In their third year of life, the young would already switch to solitary lifestyle. Besides rocky slopes, the Oriental perch often inhabits sunken vessels and other shelters.
Oriental sea perch, Sebastes taczanowski