Classification / Names
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Cyprinodontiformes (Rivulines, killifishes and live bearers) >
Rivulidae (Rivulines) > Cynolebiinae
Etymology: Spectrolebias: Latin, spectrum = imagen of a thing, apparition + Greek, lebias, ou = a kind of small fish (Ref. 45335); gracilis: 'gracilis'(Latin), i.e., referring to the thin body of the small-sized new species (Ref. 119392).
Environment: milieu / climate zone / depth range / distribution range
Οικολογία
; Γλυκού νερού Πελαγικό(ά); εύρος βάθους ? - 1 m (Ref. 119392). Tropical
South America: Brazil.
Μέγεθος / Βάρος / Age
Maturity: Lm ?  range ? - ? cm
Max length : 2.1 cm SL αρσενικό/απροσδιόριστο; (Ref. 119392); 1.9 cm SL (female)
Short description
Κλείδες προσδιορισμού | Μορφολογία | Μορφομετρία
Males are distinguished with colorful dots at the basal part of the dorsal and anal fins, a translucent caudal fin, and two pairs of neuromasts at the base of the caudal-fin. There are also 10-12 small blue spots on the opercle, surrounded by dispersed blue iridescence, and irregularly arranged series of dots (1-2), at the basal part of the dorsal fin.
This endemic species is found in river system of Araguaia-Toncantins, with temporary pools surrounded by dense aquatic vegetation. They were observed in 0.8 meters of water. The largest specimens examined were 2.08 cm for males and 1.85 cm for females, standard length. (Ref. 119392).
Life cycle and mating behavior
Γεννητική Ωρίμανση | Αναπαραγωγή | Γεννοβολία | Αβγά | Γονιμότητα | Προνύμφες
Costa, W.J.E.M. and P.F. Amorim, 2018. A new miniature cryptic species of the seasonal killifish genus Spectrolebias from the Tocantins River basin, central Brazil (Cyprinodontiformes, Aplocheilidae). Zoosystematics and Evolution, 94(2):359-368. (Ref. 119392)
IUCN Red List Status (Ref. 130435: Version 2024-1)
Threat to humans
Harmless
Human uses
αλιεία: χωρίς ενδιαφέρον
Εργαλεία
Special reports
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Διαδικτυακές πηγές
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=0.00490 (0.00186 - 0.01292), b=3.09 (2.86 - 3.32), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Τροφικό Επίπεδο (Ref.
69278): 3.0 ±0.4 se; based on size and trophs of closest relatives
Ελαστικότητα (Ref.
120179): Υψηλό, ελάχιστος χρόνος για διπλασιασμό πληθυσμού < 15 μήνες (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).