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Mimagoniates barberi is a small, characin fish known for its iridescent blue coloration, particularly in males. It is a rheophilic species, adapted to living in clear, flowing waters. This species exhibits sexual dimorphism, with males displaying more vibrant colors and elongated fins, especially during breeding season. They are generally peaceful and form shoals in their natural habitat.
Körperliche Merkmale
- Körperform
- elongated
- Färbung
- Males exhibit a striking iridescent blue to blue-green sheen over a silvery body, often with a dark lateral line. Females are generally duller, with a more silvery-grey body and less intense blue coloration. Fins are typically hyaline (clear) to slightly yellowish, with males sometimes showing blue or blackish tints on the dorsal and anal fins.
- Schuppentyp
- cycloid
- Maulstellung
- terminal
- Besondere Merkmale
- Iridescent blue coloration (especially males), Elongated dorsal and anal fins in mature males, Small, slender body, Presence of an adipose fin
- Rückenflosse
- Single, relatively short, located mid-body. Males often have elongated rays.
- Schwanzflosse
- Forked, symmetrical.
- Brustflosse
- Small, clear, positioned ventrally.
- Auffällige Flossen
- Adipose fin present, small and fleshy, located between the dorsal and caudal fins.
Bestimmungstipps
Coloration
Look for the distinctive iridescent blue sheen, especially on males. Females are more subdued.
Fin Shape (Males)
Observe the elongated dorsal and anal fins in mature males, which are more pronounced than in females or other similar tetras.
Body Shape
Its slender, elongated body distinguishes it from more robust characin species.
Adipose Fin
The presence of a small adipose fin is characteristic of characins, including Mimagoniates barberi.
Lebensraum
- Wassertyp
- freshwater
- Tiefe
- Typically found in shallow, clear waters near the surface or mid-water column.
- Umgebung
- Found in small to medium-sized rivers, streams, and tributaries, particularly those with clear, oxygen-rich water, moderate to strong currents, and abundant aquatic vegetation or submerged roots and leaf litter. They prefer areas with sandy or gravel substrates.
- Geografische Verbreitung
- Native to South America, specifically the coastal drainages of southeastern Brazil, primarily in the states of Santa Catarina and Rio Grande do Sul. Its distribution is restricted to specific river basins within this region.
Aquarieninformationen
- Pflegeaufwand: intermediate
- Temperament: peaceful
- Ernährung: omnivore
- Mindestbeckengröße: 60 liters (15 gallons) for a small group
- Temperatur: 18-24°C (64-75°F)
- pH-Wert: 6.0-7.5
- Härte: 5-15 dGH
- Verträglichkeit: Excellent for community tanks with other peaceful, small to medium-sized fish. Avoid housing with aggressive or fin-nipping species.
- Besondere Anforderungen: Requires a well-planted aquarium with good water flow and plenty of hiding spots. Prefers subdued lighting and a dark substrate to enhance coloration. A mature tank with stable water parameters is crucial. They thrive in shoals of 6 or more individuals.
Informationen zum Wildbestand
- Erhaltungszustand: least concern
- Saisonalität: Breeding activity is often linked to seasonal rainfall and water temperature changes in their natural habitat, typically during warmer, wetter months.
- Marktpreis: Low to moderate, depending on region and availability
- Kommerzielle Bedeutung: low
- Geschmack: Not typically consumed due to small size
- Textur: Not typically consumed due to small size
- Nährwert: Not typically consumed due to small size
Wichtige Fakten
Iridescent Displaybehavior
Males of Mimagoniates barberi are renowned for their stunning iridescent blue coloration, which intensifies during courtship and territorial displays.
Rheophilic Adaptationinteresting
This species is well-adapted to living in flowing waters, often found in clear, oxygen-rich streams and rivers, a characteristic shared by many members of its genus.
Sexual Dimorphismbehavior
Mimagoniates barberi exhibits clear sexual dimorphism, with males being more vibrantly colored and possessing elongated fins compared to the more subdued females.
Conservation Statusinteresting
Despite its restricted range, Mimagoniates barberi is currently listed as 'Least Concern' by the IUCN, though habitat degradation remains a potential threat.
Sicherheitsinformationen
Sicher- Sicherheitsstufe: safe
- Giftig: Nein
- Essbarkeit: not recommended
- Hinweise zum Umgang: Mimagoniates barberi is a small, delicate fish. Handle with care using a fine-mesh net to avoid injury to fins or scales. They are not known to bite or pose any physical threat.
Ähnliche Arten
Mimagoniates microlepis
Mimagoniates microlepis
While also iridescent, M. microlepis generally has a more greenish-blue hue and typically lacks the pronounced fin elongations seen in male M. barberi. Morphometric and meristic counts are also distinct upon closer examination.
Mimagoniates inequalis
Mimagoniates inequalis
M. inequalis often exhibits a more yellowish or golden tint in its iridescence and may have different patterns of dark markings on the body. Fin morphology, particularly in males, also differs.
Other small Characins
Various genera (e.g., Hyphessobrycon, Hemigrammus)
Many other small tetras lack the intense iridescent blue coloration and the specific fin elongations of male M. barberi. Careful observation of fin ray counts, body proportions, and specific color patterns is necessary for definitive identification.
Wissenschaftliche Klassifikation
- Reich
- Animalia
- Stamm
- Chordata
- Klasse
- Actinopterygii
- Ordnung
- Characiformes
- Familie
- Characidae
- Gattung
- Mimagoniates
- Art
- Mimagoniates barberi
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