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Teleostei (teleosts) > Siluriformes (Catfishes) > Pseudopimelodidae (Bumblebee catfishes, dwarf marbled catfishes) > Batrochoglaninae
Etymology: Lophiosilurus: Greek, lophos = crest + Greek, silouros = cat fish (Ref. 45335).
Eponymy: Alexander Emanuel Rodolphe Agassiz (1835–1910) (See Agassiz, AER) (Ref. 128868), visit book page.
More on author: Steindachner.

Issue
Common names according to Britski et al. (1986) and Ihering (1968). The name L. agassizi was mentioned by Steindachner to refer to L. alexandri. It is possible to conclude because he indicated the same reference of description of L. alexandri (Steindachner, Ichthyol. Beitr. V, p. 106, pl. XV). Species redescribed in Pinto & Marzulo (1975:3).

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

Freshwater; demersal; pH range: 6.0 - 7.2; dH range: 5 - 15. Tropical; 22°C - 27°C (Ref. 13614)

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

South America: São Francisco River basin, Brazil.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 72.0 cm TL male/unsexed; (Ref. 26389); max. published weight: 5.0 kg (Ref. 26389)

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Main reference Upload your references | References | Coordinator : Shibatta, Oscar Akio | Collaborators

Burgess, W.E., 1989. An atlas of freshwater and marine catfishes. A preliminary survey of the Siluriformes. T.F.H. Publications, Inc., Neptune City, New Jersey (USA). 784 p. (Ref. 6868)

IUCN Red List Status (Ref. 130435: Version 2024-2)

Vulnerable (VU) (A2cd); Date assessed: 07 November 2018

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO - Publication: search | FishSource |

More information

Trophic ecology
Food items
Diet composition
Food consumption
Food rations
Predators

Ecology
Ecology

Population dynamics
Growth parameters
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
Recruitment
Abundance

Life cycle
Reproduction
Maturity
Maturity/Gills rel.
Fecundity
Spawning
Spawning aggregations
Eggs
Egg development
Larvae
Larval dynamics

Distribution
Countries
FAO areas
Ecosystems
Occurrences
Introductions
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Anatomy
Gill area
Brain
Otolith

Physiology
Body composition
Nutrients
Oxygen consumption
Swimming type
Swimming speed
Visual pigments
Fish sound
Diseases & Parasites
Toxicity (LC50s)

Genetics
Genetics
Heterozygosity
Heritability

Human related
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Ciguatera cases
Stamps, coins, misc.

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Taxonomy
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References
References

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Summary page | Point data | Common names | Photos

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=0.01230 (0.00634 - 0.02388), b=3.08 (2.90 - 3.26), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).

Trophic level (Ref. 69278): 4.0 ±0.6 se; based on size and trophs of closest relatives

Fishing Vulnerability (Ref. 59153): Moderate to high vulnerability (49 of 100).

Lophiosilurus alexandri Steindachner, 1876