Environment: milieu / climate zone / depth range / distribution range
البيئة
بحري; المياه العذبة; مياه مخلوطة القاع; أسماك نازلة (Ref. 46888); نطاق العمق 10 - ? m (Ref. 40448). Tropical; 32°N - 35°S, 22°E - 136°W
Indo-Pacific: east coast of Africa, south to Eastern Cape in South Africa (Ref. 52193), including Madagascar, Seychelles, Rodriguez; north to Sri Lanka and India (except Bay of Bengal), Andaman and Nicobar Islands, east to Indonesia, China, the Philippines, Japan, Marshall and Tuamoto islands, Melanesia and Polynesia (Ref. 2830). Distribution includes the Red Sea (Ref. 84159) and Persian Gulf (Ref. 66734).
Length at first maturity / الحجم / وزن / العمر
Maturity: Lm 23.0 range ? - ? cm
Max length : 60.0 cm SL ذكر/ مختلط الجنس; (Ref. 4967); common length : 26.0 cm SL ذكر/ مختلط الجنس; (Ref. 4967); العمر: 6 سنين (Ref. 127264)
الأشواك الظهرية (المجموع): 4 - 5; الأشعة الظهرية الناعمة (المجموع): 8-9; شوكة شرجية 3; أشعه شرجية لينه: 8 - 10.
Occur in shallow coastal waters, and from brackish water to freshwater regions of rivers (Ref. 41299). Form schools (Ref. 40448); in larger aggregations during spawning, which takes place at sea (Ref. 2830). Feed on small algae, diatoms, forams, benthic polychaetes, crustaceans, mollusks, organic matter and detritus; fry feed on copepods and floating algae (Ref. 40448). Oviparous, eggs are pelagic and non-adhesive (Ref. 205). Caught mainly during the spawning season and is sold fresh; the roe is highly appreciated.
Life cycle and mating behavior
النضج | التكاثر | وضع البيض | بيض | الخصوبة | Larvae
Nakabo, T., 2002. Fishes of Japan with pictorial keys to the species, English edition I. Tokai University Press, Japan, pp v-866. (Ref. 41299)
IUCN Red List Status (Ref. 130435)
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