Classification / Names Nomi Comuni | Sinonimi | Catalog of Fishes(Genere, Specie) | ITIS | CoL | WoRMS | Cloffa

> Siluriformes (Catfishes) > Pseudopimelodidae (Bumblebee catfishes, dwarf marbled catfishes) > Batrochoglaninae
Etymology: Microglanis: Greek, mikros = small + Greek, glanis = a fish that can eat the bait without touching the hook; a cat fish (Ref. 45335); robustus: The specific name 'robustus' is derived from the Greek adjective, in reference to the truncated body and high caudal peduncle, giving a strong format to this catfish.

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

; acqua dolce demersale. Tropical

Distribuzione Stati | Aree FAO | Ecosystems | Presenze | Point map | Introduzioni | Faunafri

South America: Rio Tocantins basin in Pará, Brazil.

Size / Peso / Age

Maturity: L_m ? range ? - ? cm
Max length : 2.3 cm SL maschio/sesso non determinato; (Ref. 85327)

Short description Chiavi di identificazione | Morfologia | Morfometria

Spine dorsali (totale) : 1; Raggi dorsali molli (totale) : 6; Raggi anali molli: 9 - 11; Vertebre: 27 - 28. Distinguished from all its congeners by having a cordiform blotch in the nape (instead of a transverse light stripe), neuromasts of the superficial lines surrounded by melanophores on trunks, robust body with short snout, head and predorsal distance, and deep caudal peduncle. Further differs by the combination of the following characters: three wide brown blotches at lateral of body; light brown vermiculations on trunk and caudal peduncle; mouth width 11.4-13.2% SL; snout length 9.1-10.7% SL; interorbital width 44.4-49.1% HL; head length 25.5-27.8% SL; predorsal length 35.6-38.5% SL; body width 25.0-27.7% SL; adipose-fin base length 24.5-28.0% SL; caudal peduncle length 14.2-17.4% of SL; caudal-peduncle depth 13.5-14.7% SL; anal fin with 9-11 rays; pectoral-fin spine with 6-8 serrations on posterior margin; and 4-8 gill rakers. (Ref. 85327).

Found in rapids. This represents the first Microglanis species encountered in rapids as all other species occur among marginal submerged vegetation, depositional substrata of leaves, and/or trunks in calm water stretches of rivers (Ref. 85327). (Ref. 85327).

Life cycle and mating behavior Maturità | Riproduzione | Deposizione | Uova | Fecundity | Larve

Main reference Upload your references | Bibliografia | Coordinatore : Shibatta, Oscar Akio | Collaboratori

Ruiz, W.B.G. and O.A. Shibatta, 2010. A new species of Microglanis (Siluriformes, Pseudopimelodidae) from lower Rio Tocantins basin, Pará, Brazil, with description of superficial neuromasts and pores of lateral line system. Zootaxa 2632:53-66. (Ref. 85327)

IUCN Red List Status (Ref. 130435: Version 2024-1)

Critically Endangered (CR) (B2ab(ii,iii)); Date assessed: 07 November 2018

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO - Publication: search | FishSource |

Informazioni ulteriori

Trophic ecology
Prede
Alimentazione
Consumo di cibo
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Ecology
Ecologia

Population dynamics
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Length-weight rel.
Length-length rel.
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Distribution
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Anatomy
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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00741 (0.00314 - 0.01747), b=3.10 (2.90 - 3.30), 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).

Microglanis robustus Ruiz & Shibatta, 2010