分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Cichliformes (Cichlids, convict blennies)
鱸形目 (Cichlids, convict blennies) >
Cichlidae (Cichlids)
慈鯛科魚類 (Cichlids) > Cichlasomatinae
Etymology: Laetacara: Latin, laetus = happy + tupí, guaraní acará = a name of a fish (Ref. 45335).
More on author: Heckel.
Environment: milieu / climate zone / depth range / distribution range
生態學
; 淡水 底中水層性; pH range: 4.0 - 7.5; dH range: 1 - 20. 熱帶; 20°C - 23°C (Ref. 40602)
South America: Amazon River basin, in the Guaporé River drainage; Paraná River basin, in the Paraguay River drainage in Brazil and Paraguay, middle Paraná River drainage in Argentina.
南美洲: 亞馬遜河流域, 在 Guapore 河流域; 巴拉納河流域, 在巴拉圭河流域在巴西與巴拉圭, 在阿根廷的中央巴拉納河流域。
大小 / 重量 / 年齡
Maturity: Lm ?  range ? - ? cm
Max length : 6.0 cm SL 雄魚/尚未辨別雌雄; (Ref. 81048)
背棘 (總數): 14; 背的軟條 (總數): 9-10; 臀棘 3; 臀鰭軟條: 8 - 9; 脊椎骨: 24. Distinguished from all other species of the genus by the following combination of characters:
scales on the longitudinal series 21-22; a dark spot on dorsal fin above trunk bar 5, and usually
above trunk bar 4; head depth 90.2-96.3 % mm HL; cycloid scales on head sides; dorsal-fin rays 9-10; anal-fin rays 8-9; total vertebrae 24; scales on the upper lateral line 14-15; scales on the lower lateral line 6-8; absence of a dark dot at the edge of each scale on the midlateral portion of the flank; and a wide ectopterygoid (Ref. 80972).
Found in rivers (Ref. 12965). Known to leap from the water to land on nearby buoyant vegetation to escape predators, but this may in turn, make them vulnerable to aerial hunters (Ref. 40103). Maximum length 8 cm TL (Ref. 1672).
棲息於河。 (參考文獻 12965) 已知跳躍從水中在附近的有浮力的植物上登陸以逃避掠食者, 但是這可能依次, 對空中的獵人使他們易受傷害.(參考文獻 40103) 最大的長度 8 公分TL.(參考文獻 1672)
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
南美洲: 亞馬遜河流域, 在 Guapore 河流域; 巴拉納河流域, 在巴拉圭河流域在巴西與巴拉圭, 在阿根廷的中央巴拉納河流域。
Kullander, S.O., 2003. Cichlidae (Cichlids). p. 605-654. In R.E. Reis, S.O. Kullander and C.J. Ferraris, Jr. (eds.) Checklist of the Freshwater Fishes of South and Central America. Porto Alegre: EDIPUCRS, Brasil. (Ref. 36377)
IUCN 瀕危狀態 (Ref. 130435)
無危 (LC) ; Date assessed: 20 November 2020
人類使用
漁業: 沒有興趣; 水族館: 商業性
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5078 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.03090 (0.01688 - 0.05658), b=3.06 (2.90 - 3.22), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
營養階層 (Ref.
69278): 3.2 ±0.4 se; based on size and trophs of closest relatives
回復力 (Ref.
120179): 高度, 族群倍增時間少於 15個月 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).