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Polydactylus microstoma (Bleeker, 1851)

Smallmouth threadfin
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Fiji country information

Common names: Thread fish, Uculuka
Occurrence: questionable
Salinity: brackish
Abundance: | Ref:
Importance: commercial | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Not in Motomura, 2004 (Ref. 57343). Outside distributional range, occurrence needs confirmation. Also Ref. 85272.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/fj.html
National Fisheries Authority: http://www.spc.org.nc/coastfish/Countries/fiji/fiji.htm
Occurrences: Occurrences Point map
Main Ref: Lewis, A.D. and C.K. Pring, 1986
National Database:

Common names from other countries

分類 / Names 共通名の | 類義語 | Catalog of Fishes(部類, ) | ITIS | CoL | WoRMS | Cloffa

> Carangaria/misc (Various families in series Carangaria) > Polynemidae (Threadfins)
Etymology: Polydactylus: Greek, poly = a lot of + greek, daktylos = finger (Ref. 45335).
  More on author: Bleeker.

Environment: milieu / climate zone / depth range / distribution range 生態学

; 汽水性の 底生の; 深さの範囲 2 - 55 m (Ref. 57343).   Tropical; 26°N - 23°S, 77°E - 168°E

分布 国々 | 国連食糧農業機関の区域 | エコシステム | 事件 | Point map | 導入 | Faunafri

Eastern Indian Ocean and Western Pacific: Tamil Nudu, India to Myanmar and Phuket, Thailand; then from Taiwan to Indonesia and New Caledonia.

サイズ / 重さ / 年齢

Maturity: Lm ?  range ? - ? cm
Max length : 25.0 cm TL オス/雌雄の選別がない; (Ref. 3479); common length : 20.0 cm TL オス/雌雄の選別がない; (Ref. 3479)

簡単な記述 検索表 | 形態学 | 形態計測学

背面の脊椎 (合計) : 9; 背鰭 (合計) : 12 - 14; 肛門の骨: 3; 臀鰭: 11 - 12; 脊つい: 10 - 14. With 5 pectoral filaments; uppermost not reaching to (or extending slightly beyond) posterior tip of pectoral fin. Pectoral fin, rays short, 17-20% of SL; all rays branched except uppermost 1 or 2. Second dorsal spine long, 7-9% of SL. Well-developed swim bladder. A large black spot anteriorly on lateral line (Ref. 40958). Posterior margin of maxilla reaching to (or slightly short of) level of posterior margin of adipose eyelid. Lower tip of 7th proximal pterygiophore of 1st dorsal fin directed backwards. Lateral line squamation on caudal fin unbranched, extending to upper end of lower caudal fin lobe (Ref. 40970).

生物学     用語集 (例 epibenthic)

Found in turbid coastal waters, estuaries and mangrove creeks, and in mangrove-lined rivers (Ref. 57343). Euryhaline (Ref. 12743). Feeds mainly on small crustaceans (especially shrimps), fishes and benthic organisms (Ref. 3479).

Life cycle and mating behavior Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 幼生

主な参考文献 Upload your references | 参考文献 | コーディネーター | 協力者

Motomura, H., 2004. Threadfins of the world (Family Polynemidae). An annotated and illustrated catalogue of polynemid species known to date. FAO Spec. Cat. Fish. Purp. Rome: FAO. 3:117 p. (Ref. 57343)

IUCNのレッドリストの状況は (Ref. 130435)

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