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> Cichliformes (Cichlids, convict blennies) > Cichlidae (Cichlids) > Geophaginae
Etymology: Dicrossus: Greek, di = two + Greek, krossoi = tassel (Ref. 45335); gladicauda: The specific name is derived from the Latin gladius, meaning sword, and cauda, meaning tail, alluding to the sword-like streamer of the dorsal lobe of the caudal fin in adult males..

Environment: milieu / climate zone / depth range / distribution range Ökologie

; süßwasser benthopelagisch; pH range: 4.4 - ?. Tropical; 24°C - ? (Ref. 76847)

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South America: lower río Atabapo drainage in Colombia.

Size / Gewicht / Alter

Maturity: L_m ? range ? - ? cm
Max length : 4.2 cm SL Männchen/unbestimmt; (Ref. 76847)

Kurzbeschreibung Morphologie | Morphometrie

Rückenflossenstacheln (insgesamt): 14 - 15; Rückenflossenweichstrahlen (insgesamt): 8; Afterflossenstacheln 3; Afterflossenweichstrahlen: 6 - 7. Distinguished from all congeners by the conspicuously asymmetrical caudal fin characterized by the long filamentous streamer of its dorsal lobe in adult males. Most similar to Dicrossus filamentosus, but can be differentiated by having a lyreate caudal fin, both the marginal rays of the dorsal and the ventral part of caudal fin are distally produced into a filamentous streamer (Ref. 76847).

Found in a typical blackwater habitat with clear, acidic and very soft tea-colored water, with total and temporary hardness <1° dH (Ref. 76847). Encountered along the bank of small rivulet in zones of extremely shallow water, approximately between 10 and 50 cm depth, where this species occurs either in a layer of dead leaves covering the bottom of the bank side or among the submerged terrestrial vegetation (Ref. 76847).

Life cycle and mating behavior Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fecundity | Larven

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Schindler, I. and W. Staeck, 2008. Dicrossus gladicauda sp. N.- a new species of crenicarine dwarf cichlids (Teleostei: Perciformes: Cichlidae) from Colombia, South- America. Vertebrate Zoology 58(1):67-73. (Ref. 76847)

IUCN Rote Liste Status (Ref. 130435)

stark gefährdet (EN) (B1ab(iii)); Date assessed: 23 October 2020

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Bedrohung für Menschen

Harmless

Nutzung durch Menschen

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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5312 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00724 (0.00283 - 0.01852), b=3.13 (2.91 - 3.35), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trophic level (Ref. 69278): 3.2 ±0.4 se; based on size and trophs of closest relatives

Widerstandsfähigkeit (Ref. 120179): hoch, Verdopplung der Population dauert weniger als 15 Monate. (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): Low vulnerability (10 of 100).

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Dicrossus gladicauda Schindler & Staeck, 2008