Nematalosa japonica Regan, 1917 Japanese gizzard shad |
photo by
Randall, J.E. |
Family: | Dorosomatidae (Gizzard shads and sardinellas) | |||
Max. size: | 19 cm SL (male/unsexed) | |||
Environment: | benthopelagic; marine | |||
Distribution: | Western Pacific: Matsushima Bay, Sea of Japan southward to Taiwan Island, Hong Kong, the Philippines, and a single record from Gulf of Thailand. | |||
Diagnosis: | Dorsal spines (total): 0-0; Anal spines: 0-0; Anal soft rays: 17-26. Body generally more slender than in other species, belly with total 30 to 34 scutes. Anterior arm of pre-operculum with a fleshy triangle above, not covered by third infra-orbital bone (see N. come). Lower jaw strongly flared outward. Pectoral axillary scale well developed. Hind edge of scales distinctly toothed. A dark spot behind gill opening. | |||
Biology: | Schooling near shore over sand or mud, preferring warmer water than Konosirus punctatus. A filter-feeder; takes minute algae or organic matter. Breeds around May in Japanese waters. | |||
IUCN Red List Status: | Data deficient (DD); Date assessed: 17 July 2017 Ref. (130435) | |||
Threat to humans: | harmless | |||
Country info: |
|