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Teleostei (teleosts) > Gymnotiformes (Knifefishes) > Hypopomidae (Bluntnose knifefishes)
Etymology:

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

Freshwater; benthopelagic. Tropical

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

South America: known only from localities around San Fernando de Atabapo and San Carlos de Rio Negro, Territorio Amazonas, Venezuela.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 11.7 cm TL male/unsexed; (Ref. 26457)

Short description Identification keys | Morphology | Morphometrics

Dorsal spines (total): 0; Dorsal soft rays (total): 0; Anal soft rays: 171 - 193; Vertebrae: 94 - 97. Body abruptly attenuated caudally; 23 precaudal vertebrae; cranium higher than in other members of the family; anal rays covered by a thick tissue, giving an undulated shape to the anal fin; basibranchials not ossified (cartilaginous matrices); tail about 1/5 of anal fin base; lateral line incomplete; no scalation on dorsoanteriorly and middorsally.

Life cycle and mating behavior Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larvae

Main reference Upload your references | References | Coordinator : Albert, James S. | Collaborators

Albert, J.S., 2003. Hypopomidae (Bluntnose knifefishes). p. 494-496. In R.E. Reis, S.O. Kullander and C.J. Ferraris, Jr. (eds.) Checklist of the Freshwater Fishes of South and Central America. Porto Alegre: EDIPUCRS, Brasil. (Ref. 37053)

IUCN Red List Status (Ref. 130435)

Least Concern (LC) ; Date assessed: 01 September 2020

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO - Publication: search | FishSource |

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Trophic ecology
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Ecology
Ecology

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Length-weight rel.
Length-length rel.
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Life cycle
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Egg(s)
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Distribution
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Anatomy
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Physiology
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Swimming type
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Visual pigment(s)
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Internet sources

Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00617 (0.00199 - 0.01914), b=3.06 (2.81 - 3.31), 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).

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