Lateolabrax japonicus Cuvier, 1828, seas of Japan.
OTHER COMMON NAMES
English: Japanese seaperch, Japan sea bass; Japanese: Suzuki.
Total length 40 in (102 cm). Body elongate, compressed, and perchlike. Mouth is large, lower jaw projects beyond upper jaw. Two dorsal fins. Color silvery but with fine black spots or large black spots on adults from some localities. Juveniles have small black spots on dorsal fin and back. There are 12–15 spines and 12–14 soft rays in the dorsal fin, 3 spines and 7–9 soft rays in the anal fin. Caudal fin is truncate.
Marine, brackish, and fresh waters of Japan south and west to the South China Sea.
Inshore rocky reefs, usually in moving water. Juveniles enter brackish and fresh waters.
Solitary or in small groups. Will migrate.
FEEDING ECOLOGY AND DIET
Adults and older juveniles feed upon crustaceans, usually prawns and shrimps, and smaller fishes. Younger juveniles feed upon zooplankton.
During winter months, Japanese perch migrate downstream to the sea, join conspecifics migrating from other streams, and spawn on deeper rocky reefs.
Not listed by the IUCN, but may be vulnerable to habitats destruction, particularly in rivers and estuaries.
SIGNIFICANCE TO HUMANS
Commercial fishes and game fishes, also raised by aquaculture and collected for aquaria. Used in Chinese medicine.
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