Astronotus ocellatus, Oscar : fisheries, gamefish, aquarium

Astronotus ocellatus (Agassiz, 1831)

Oscar
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Image of Astronotus ocellatus (Oscar)
Astronotus ocellatus
Picture by Schüür, G.

Classification / Names आम नाम | उपशब्द | Catalog of Fishes(वर्ग, प्रजाति) | ITIS | CoL | WoRMS | Cloffa

> Cichliformes (Cichlids, convict blennies) > 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 पारिस्थितिकी

; स्वच्छ जल, अलवण जल बेनथोपिलाजिक; 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

वितरण देश | ऐफ ऐ ओ क्षेत्र | Ecosystems | संयोग | Point map | भूमिका | Faunafri

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

Length at first maturity / आकार / वज़न / Age

Maturity: Lm 12.0  range ? - ? cm
Max length : 45.7 cm TL पुल्लिंग / अलिंग; (Ref. 40637); common length : 24.0 cm TL पुल्लिंग / अलिंग; (Ref. 12193); अधिकतम प्रकाशित वज़न: 1.6 kg (Ref. 40637)

Short description आकृति विज्ञान | मौरफोमैटरिक्स

पृष्ठीय रीढ़ (सम्पूर्ण): 12 - 14; पृष्ठीय सौफट रेज़ (सम्पूर्ण): 19-21; गुदा कांटा 3; ऐनल सौफट रेज़: 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).

जीवविज्ञान     शब्द संग्रह (उदाहरणार्थ 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 परिपक्व अवधि | पुनरुत्पत्ति | मछलीऔ का अंडे देना | अंडे | Fecundity | लार्वा

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).

Main reference Upload your references | संदर्भ | संयोजक : Kullander, Sven O. | सहयोगीयो

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 Red List Status (Ref. 123251)


CITES (Ref. 123416)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

मात्स्यिकी: व्यापारिक; आखेट मत्स्य: हां; जलजीवालय: उच्च वाणिज्य
FAO - Publication: search | FishSource |

अधिक जानकारी

Age/Size
बाढ़
Length-weight
Length-length
Length-frequencies
मौरफोमैटरिक्स
आकृति विज्ञान
लार्वा
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BRUVS
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जलीयकृषि
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खींच
आनुवंशिकी
ऐल्लि आवृतियाँ
हैरेटिबिलटी
बीमारी
प्रक्रमण
Nutrients
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इंटरनेट स्रोत

Estimates based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.7500   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.02512 (0.00974 - 0.06480), b=3.01 (2.79 - 3.23), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Trophic level (Ref. 69278):  2.8   ±0.32 se; based on food items.
लौटाव (Ref. 120179):  ऊंचा, न्यूनतम जनसंख्या दुगनी समय अवलागत 15 महीने। (Assuming tm<=1; Fec=300-2000).
Vulnerability (Ref. 59153):  Moderate vulnerability (36 of 100) .
Price category (Ref. 80766):   Unknown.
Nutrients (Ref. 124155):  Calcium = 111 [59, 222] mg/100g ; Iron = 1.27 [0.76, 2.46] mg/100g ; Protein = 17.7 [16.3, 19.2] % ; Omega3 = 0.263 [0.103, 0.723] g/100g ; Selenium = 51.6 [25.4, 116.3] μg/100g ; VitaminA = 21.5 [6.0, 62.3] μg/100g ; Zinc = 1.9 [1.2, 3.2] mg/100g (wet weight);