Classification / Names
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Teleostei (teleosts) >
Characiformes (Characins) >
Acestrorhamphidae (American tetras) > Hyphessobryconinae
Etymology: Hyphessobrycon: Greek, hyphesson, -on, -on = a little smaller + Greek, bryko = to bite (Ref. 45335); borealis: Derived from the Latin boreas. Named on the basis of its natural distribution in the north of South America.
More on authors: Zarske, Le & BailGéry.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; benthopelagic. Tropical
South America: French Guiana.
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 2.8 cm SL male/unsexed; (Ref. 57781)
Short description
Identification keys | Morphology | Morphometrics
A gregarious fish living near the bank of the river with shallow water and very slow current (57781).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Zarske, A., P.-Y. Le Bail and J. Géry, 2006. New and poorly known characiform fishes from French Guiana. 1. Two new tetras of the genera Hemigrammus and Hyphessobrycon (Teleostei: Characiformes: Characidae). Zool. Abhand. Dresden 55:17-30. (Ref. 57781)
IUCN Red List Status (Ref. 130435: Version 2025-1)
Threat to humans
Harmless
Human uses
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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=0.00955 (0.00428 - 0.02132), b=3.12 (2.93 - 3.31), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 2.9 ±0.3 se; based on size and trophs of closest relatives
Resilience (Ref.
120179): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
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