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Scleropages formosus  (Müller & Schlegel, 1840)

Asian bonytongue
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Scleropages formosus
Picture by Tursinah, N.

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

条鰭類 > Osteoglossiformes (Bony tongues) > Osteoglossidae (Arowanas)
Etymology: Scleropages: Greek, skleros = hard + Greek, page, -es = knot (Ref. 45335).

環境 / 気候 / 範囲 生態学

; 新鮮な水 底生の漂泳性.   Tropical; 24°C - 30°C (Ref. 2060), preferred ?

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

Asia: Southern Myanmar to Malay Peninsula and Indonesia, eastern Thailand to Cardamon Range. International trade banned (CITES I, since 1.7.75).

Length at first maturity / サイズ / 重さ / 年齢

Maturity: Lm ?  range ? - ? cm
Max length : 90.0 cm TL オス/雌雄の選別がない; (Ref. 6398)

簡単な記述 形態学 | 形態計測学

With 1 pair of barbels; scales large.

生物学     用語集 (例 epibenthic)

Occurs in tannin stained blackwater streams (Ref. 12693). Found in forest covered streams including peat adjacent areas. Take around three months for free swimming fries (Ref. 57235). Young individuals feed on insects at the water surface, adults take fishes (Ref. 12693, 57235) and smaller vertebrates (Ref. 56749). A mouth brooder, young about 6 cm at birth (Ref. 7050, 57235). Valued as an aquarium fish, its flesh commands a moderate price.

Life cycle and mating behavior 成熟 | 繁殖 | 放精 | | 生産力 | 幼生

From an observation of a breeding pair in a concrete tank, courtship lasts from several weeks to months. During this stage, the breeding pair swims near the water surface usually at night. "The male chases the female around the perimeter of the tank. Sometimes, the pair circle each other nose-to-tail. About one to two weeks before spawning takes place, the fish swim side by side with their bodies touching. Eventually, the female releases a cluster of orange-red eggs. The male fertilises the eggs and then scoops them into its mouth where it incubates them. After hatching which occurs in about a week, the young larvae continue to live in the male's mouth for 7-8 weeks more until the yolk sac is totally absorbed" (Ref. 57886).

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

Kottelat, M., 2013. The fishes of the inland waters of Southeast Asia: a catalogue and core bibliography of the fishes known to occur in freshwaters, mangroves and estuaries. The Raffles Bulletin of Zoology 2013 (Suppl. 27):1-663. (Ref. 94476)

IUCNのレッドリストの状況は (Ref. 115185)

  絶滅危惧 (EN) (A4cd)

CITES (Ref. 94142)

人間に対する脅威

  Harmless




Human uses

水産業: 商業; 水族館・水槽: 高い商業の
FAO(水産業: 代謝; publication : search) | FisheriesWiki | 私達の周りの海

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共通名の
類義語
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捕食動物
生態毒性
繁殖
成熟
放精
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Length-length
体長組成
形態計測学
形態学
幼生
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補充
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参考文献
水産養殖
水産養殖の紹介
緊張
遺伝子の
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シガテラ(食中毒の名前)
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インターネットの情報源

Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5781   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00363 (0.00140 - 0.00941), b=3.13 (2.91 - 3.35), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
栄養段階 (Ref. 69278):  3.9   ±0.63 se; Based on food items.
回復力 (Ref. 69278):  低い, 4.5年~14年の倍増期間の最小個体群 (tm = 3-4; Fec = 50 (in concrete tanks)).
弱み (Ref. 59153):  Moderate to high vulnerability (47 of 100) .
価格帯 (Ref. 80766):   Unknown.