Classification / Names
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Cyprinodontiformes (Rivulines, killifishes and live bearers) >
Nothobranchiidae (African rivulines)
Etymology: Aphyosemion: Greek, aphye, -es, sardine, anchovy + Greek, semeion = mark, signal (Ref. 45335); ecucuense: The species is named after the Rio Ecucu, in the northern coastal plain of Equatorial Guinea (Ref. 74419).
Environment: milieu / climate zone / depth range / distribution range
Ecologia
; acqua dolce benthopelagico. Tropical
Africa: tributaries of the middle and upper Río Ecucu system in Equatorial Guinea (Ref. 74419).
Size / Peso / Age
Maturity: Lm ?  range ? - ? cm
Max length : 2.8 cm SL maschio/sesso non determinato; (Ref. 74419); 2.8 cm SL (female)
Short description
Chiavi di identificazione | Morfologia | Morfometria
Spine dorsali (totale) : 0; Raggi dorsali molli (totale) : 11 - 12; Spine anali: 0; Raggi anali molli: 13 - 15. Scales are cycloid; body and head entirely scaled, except ventral surface of head; no scales on dorsal- and anal-fin base, 2-3 on caudal-fin base (Ref. 74419). Scales on mid-longitudinal series 25-27, transverse series of scales above pelvic fin 8-9 (Ref. 74419). Open frontal neuromast system with two separate grooves, preopercular canal with 6 pores (Ref. 74419). Several rows of hooked and unicuspid teeth on upper and lower jaws (Ref. 74419).
Life cycle and mating behavior
Maturities | Riproduzione | Spawnings | Egg(s) | Fecundities | Larve
Sonnenberg, R., 2007. Two new species of Chromaphyosemion (Cyprinodontiformes: Nothobranchiidae) from the coastal plain of Equatorial Guinea. Ichthyol. Explor. Freshwat. 18(4):359-373. (Ref. 74419)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
Strumenti
Special reports
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01096 (0.00449 - 0.02680), b=2.92 (2.71 - 3.13), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.1 ±0.4 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).