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) > Geophaginae
Etymology: Geophagus: Greek, gea = the earth + Greek, phagein = to eat (Ref. 45335); santosi: Named for Alexandre Clistenes Alcântara Santos, anichthyologist and a friend, who is dedicated to the study of aquatic ecosystems of northeast Brazil..
Environment: milieu / climate zone / depth range / distribution range
生態學
; 淡水 底中水層性.
South Amercia: Brazil.
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 15.3 cm SL 雄魚/尚未辨別雌雄; (Ref. 119412)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
This species is distinguished from all other species of G. brasiliensis group by having by having dorsal and anal fins with blue stripes parallel to fin rays on their longest portion (vs. transverse blue bands crossing rays or fins with dots) and the basal portion of caudal-fin with short, longitudinal bluish-white lines (vs. dots or bars); further distinguished except for G. rufomarginatus, G. obscurus, by the presence of an oblique iridescent blue zone between the humeral region and the anterior portion of the dorsal-fin base (vs. no iridescent blue zone); differs from G. obscurus by having having an oblique suborbital row of aligned, small iridescent blue marks, not extending to cheek (vs. suborbital iridescent blue marks irregularly arranged extending to the cheek) and with chest profile straight in lateral view (vs. convex); differs from G. rufomarginatus by having dorsal-fin lappets with grey or dark brown edges (vs. red), with denticles on gill-rakers of the first branchial arch (vs. absent); differs from G. itapicuruensis by having D XIV (vs. D XIII) and lateral spot rounded (vs. elliptical); differs from G. diamantinensis by the absence of a dark brown mark on the humeral region (vs. presence), no horizontal dark brown band on the snout (vs. present), and urohyal bone with strong constriction (vs. with gentle anterior constriction); differs from G. brasiliensis by having a terminal mouth (vs. sub-dorsal) (Ref. 119412).
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔魚
Mattos, J.L. and W.J.E.M. Costa, 2018. Three new species of the 'Geophagus' brasiliensis species group from the northeast Brazil (Cichlidae, Geophagini). OrinoZoosyst. Evol. 94(2):325-337. (Ref. 119412)
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = No PD50 data [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.02188 (0.01030 - 0.04649), b=3.03 (2.84 - 3.22), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
營養階層 (Ref.
69278): 2.3 ±0.1 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).
