Bolivia country information

Common names: [No common name]
Occurrence: native
Salinity: freshwater
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Known from the Amazon River basin (Ref. 79495).
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/bl.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Lundberg, J.G. and W.M. Dahdul, 2008
National Database:

Common names from other countries

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Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa

Teleostei (teleosts) > Siluriformes (Catfishes) > Pimelodidae (Long-whiskered catfishes)
Etymology: Megalonema: Greek, megas, megalos = great + Greek, nema = filament (Ref. 45335); amaxanthum: The specific name refers to the distribution of the species in the Amazon basin and its relationship to the species Megalonema xanthum..

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

Freshwater; demersal. Tropical

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

South America: Amazon River basin, Brazil, Guyana, Peru, Bolivia and probably Colombia and Ecuador.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 24.1 cm SL male/unsexed; (Ref. 125983); 31.2 cm SL (female); max. published weight: 221.09 g (Ref. 125983); max. published weight: 221.09 g

Short description Identification keys | Morphology | Morphometrics

Dorsal spines (total): 1; Dorsal soft rays (total): 7; Anal soft rays: 12 - 16; Vertebrae: 42 - 45. Total vertebrae including Weberian complex (Ref. 79495).

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

Main reference Upload your references | References | Coordinator | Collaborators

Lundberg, J.G. and W.M. Dahdul, 2008. Two new cis-Andean species of the South American catfish genus Megalonema allied to trans-Andean Megalonema xantum, with description of a new subgenus (Siluriformes: Pimelodidae). Neotrop. Ichthyol. 6(3):439-454. (Ref. 79495)

IUCN Red List Status (Ref. 130435)

Least Concern (LC) ; Date assessed: 29 December 2020

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO(Publication : search) | FishSource |

More information

Trophic ecology
Food items
Diet compositions
Food consumptions
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Predators

Ecology
Ecology
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Population dynamics
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Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
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Recruitments
Abundances

Life cycle
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Egg(s)
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Distribution
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BRUVS - Videos

Anatomy
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Brains
Otoliths

Physiology
Body compositions
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Swimming type
Swimming speeds
Visual pigment(s)
Fish sounds
Diseases / Parasites
Toxicities (LC50s)

Genetics
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Human related
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Stamps, coins, misc.

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References
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Check for Aquarium maintenance | Check for Species Fact Sheets | Check for Aquaculture Fact Sheets

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Summary page | Point data | Common names | Photos

Internet sources

Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5039 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00776 (0.00501 - 0.01204), b=3.18 (3.05 - 3.31), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).

Trophic level (Ref. 69278): 4.0 ±0.7 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 to moderate vulnerability (28 of 100).

Megalonema amaxanthum Lundberg & Dahdul, 2008