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: Mesonauta: Name not explained by Günther; probably from the Greek 'mesos' meaning middle or average, and 'nautes' for sailo (alternatively from Latin 'nauta' or sailor; the name perhaps refers to he position of dorsal fin origin posterior to the pelvic fin which was the author's principal diagnostic character.; egregius: Name from a Latin adjective 'egregius' meaning eminent or distinguished..
More on authors: Kullander & Silfvergrip.
Environment: milieu / climate zone / depth range / distribution range
生態學
; 淡水 底中水層性; pH range: 4.8 - ?. 熱帶; ? - 30°C (Ref. 40602)
South America: Orinocoa River basin, in the Meta and Vichada River basins.
南美洲: Orinocoa 河流域, 在 Meta 與 Vichada 河流域。
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 8.2 cm SL 雄魚/尚未辨別雌雄; (Ref. 36377)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
This species is distinguished by the lower metamerie meristics than its congeners: dorsal fin count usually XIV.ll instead of XV.l0-l1, anal fin count usually VILlI which is not found in other Mesonauta species, El row scales usually 24 instead of 25 or 26, vertebrae 13+13 instead of 12+14 or 13+14. Bar 6 is split ventrally, but unlike in M. mirificus with similar pattem, there are no horizontal stripes along the sides . It is distinguished from the geographically c!ose M. insignis also by deeper body (50.7-55.6%SL vs 47.6-53.4%SL) and shorter snout (8.9-11.0% vs 1O.2-13.0%SL), and by having plain coloured instead of reticulated dorsal pigment pattern (ref. 86444).
In shallow water among aquatic plants (Ref. 40602).
在水生植物之中的淺水區中.(參考文獻 40602)
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔魚
南美洲: Orinocoa 河流域, 在 Meta 與 Vichada 河流域。
Kullander, S.O. and A.M.C. Silfvergrip, 1991. Review af the South American cichlid genus Mesonauta Gunther (Teleostei, Cichlidae) with descriptions af two new species. Revue suisse Zoo!. 98(2):407-448. (Ref. 86444)
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5156 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.02692 (0.01216 - 0.05956), b=3.04 (2.86 - 3.22), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
營養階層 (Ref.
69278): 3.3 ±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).
