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Astronotus ocellatus (Agassiz, 1831)

Oscar
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Native range | All suitable habitat
This map was computer-generated and has not yet been reviewed.
Astronotus ocellatus   AquaMaps   Data sources: GBIF OBIS
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Image of Astronotus ocellatus (Oscar)
Astronotus ocellatus
Picture by Schüür, G.

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

条鰭類 > Perciformes (Perch-likes) > Cichlidae (Cichlids) > Astronotinae
Etymology: Astronotus: Greek, astra = ray + Greek, noton = back (Ref. 45335).  More on author: Agassiz.

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

; 新鮮な水 底生の漂泳性; pH range: 6.0 - 8.0; dH range: 5 - 19.   Tropical; 22°C - 25°C (Ref. 1672); 4°N - 15°S, 78°W - 47°W

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

South America: Amazon River basin in Peru, Colombia and Brazil; French Guiana. Reported from Argentina (Ref. 9086).

Length at first maturity / サイズ / 重さ / 年齢

Maturity: Lm 12.0  range ? - ? cm
Max length : 45.7 cm TL オス/雌雄の選別がない; (Ref. 40637); common length : 24.0 cm TL オス/雌雄の選別がない; (Ref. 12193); 最大公表体重: 1.6 kg (Ref. 40637)

簡単な記述 形態学 | 形態計測学

背面の脊椎 (合計): 12 - 14; 背鰭 (合計): 19-21; 肛門の骨 3; 臀鰭: 15 - 17. Large mouth with thick lips; 7 preopercular pores; first gill arch without lobe; gill rakers short and thick with many denticles; dorsal and anal fins bases densely scaled; many branched rays; body color dark with bright orange opercle margin and ventral parts of the lateral sides of the body; often a black rounded blotch with orange margin at caudal fin base (Ref. 35237).

生物学     用語集 (例 epibenthic)

Preferably inhabits quiet shallow waters in mud-bottomed and sand-bottomed canals and ponds (Ref. 5723). Feeds on small fish, crayfish, worms and insect larvae. Quite popular with aquarists but not for aquaculturists because of its slow growth (Ref. 35237). Maximum length 40 cm TL (Ref. 5723). A highly esteemed food fish in South America (Ref. 44091).

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

In captivity, both male and female clean a suitable spawning site - often a flat rock , or branches, or in a circular nest excavated in shallow water (Ref. 44091). Eggs (usually numbering in the thousands, Ref. 44091) are deposited and are guarded by both parents. Egg hatch in 3 or 4 days and parent move the fry to a shallow pit in the sand where they remain for 6 or 7 days (Ref. 7020).

主な参考文献 Upload your references | 参考文献 | コーディネーター : Kullander, Sven O. | 協力者

Page, L.M. and B.M. Burr, 1991. A field guide to freshwater fishes of North America north of Mexico. Houghton Mifflin Company, Boston. 432 p. (Ref. 5723)

IUCNのレッドリストの状況は (Ref. 119314)


CITES (Ref. 115941)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

人間に対する脅威

  Harmless





Human uses

水産業: 商業; ゲームフィッシュ: はい; 水族館・水槽: 高い商業の
FAO(Publication : search) | FishSource |

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共通名の
類義語
代謝
捕食動物
生態毒性
繁殖
成熟
放精
卵の集合体
生産力

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Age/Size
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体長-重さ
Length-length
体長組成
形態計測学
形態学
幼生
幼生の動力
補充
豊度
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)
速度
泳ぐ 型式
カマ
Otoliths

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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 = 0.7500   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.02344 (0.01031 - 0.05330), b=3.00 (2.79 - 3.21), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
栄養段階 (Ref. 69278):  2.8   ±0.32 se; Based on food items.
回復力 (Ref. 69278):  高い, 15か月以下の倍増期間の最小個体群 (Assuming tm<=1; Fec=300-2000).
弱み (Ref. 59153):  Moderate vulnerability (36 of 100) .
価格帯 (Ref. 80766):   Unknown.