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Scleropages formosus  (Müller & Schlegel, 1840)

Asian bonytongue
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Image of Scleropages formosus (Asian bonytongue)
Scleropages formosus
Picture by Tursinah, N.

分類 / Names 俗名 | 同種異名 | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii 輻鰭魚綱 (條鰭魚) > Osteoglossiformes (Bony tongues) > Osteoglossidae (Arowanas)
Etymology: Scleropages: Greek, skleros = hard + Greek, page, -es = knot (Ref. 45335).

環境 / 氣候 / 範圍 生態學

; 淡水 底中水層性.    24°C - 30°C (Ref. 2060), preferred ?

分布 國家 | FAO區域 | 生態系 | 發現紀錄 | Point map | 簡介 | 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 / 大小 / 重量 / 年齡

Maturity: Lm ?  range ? - ? cm
Max length : 90.0 cm TL 雄魚/尚未辨別雌雄; (Ref. 6398)

簡短描述 型態特徵 | 形態測量圖

With 1 pair of barbels; scales large.

生物學特性     字彙 (例如 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 成熟度 | 繁殖 | 產卵場 | | 孕卵數 | 仔魚

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).

主要參考資料 Upload your references | 參考文獻 | 合作者 | 合作者

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 瀕危狀態 (Ref. 115185)

  瀕危 (EN) (A4cd)

CITES (Ref. 94142)

對人類具威脅

 




人類使用

漁業: 商業性; 水族館: 高經濟性
FAO(漁業: 產生; publication : search) | FisheriesWiki | 周邊海洋

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生態毒物學
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成熟度
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孕卵數

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Otoliths
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網路資源

Alien/Invasive Species database | BHL | Cloffa | BOLDSystems | Websites from users | 檢查 FishWatcher | CISTI | Catalog of Fishes (gen., sp.) | DiscoverLife | ECOTOX | Faunafri | Fishes of Iran | Fishtrace | GenBank(基因組, 核甘) | GloBI | GOBASE | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | 公眾的水族館 | PubMed | Reef Life Survey | Scirus | SeaLifeBase | 樹狀分類階層 | Wikipedia(, 搜尋) | World Records Freshwater Fishing | 動物學的記錄

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).
營養階層 (Ref. 69278):  3.9   ±0.63 se; Based on food items.
回復力 (Ref. 69278):  低的, 最小族群倍增時間4.5 - 14 年 (tm = 3-4; Fec = 50 (in concrete tanks)).
瀕危性 (Ref. 59153):  Moderate to high vulnerability (47 of 100) .
價格種類 (Ref. 80766):   Unknown.