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Microglanis sparsus Ruiz, 2016

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Image of Microglanis sparsus
No image available for this species;
drawing shows typical species in Pseudopimelodidae.


Brazil country information

Common names: [No common name]
Occurrence: native
Salinity: freshwater
Abundance: | Ref:
Importance: | Ref:
Aquaculture: never/rarely | Ref:
Regulations: no regulations | Ref:
Uses: no uses
Comments: Type locality of Microglanis sparsus, Mato Grosso: Campinápolis: rio Couto de Magalhães (upper rio Xingu basin), near Vila São José do Rio do Couto (Ref. 130492).
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/br.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Ruiz, W.B.G., 2016
National Database:

Common names from other countries

Classificação / Names Nomes comuns | Sinônimos | Catalog of Fishes(Gênero, Espécies) | ITIS | CoL | WoRMS | Cloffa

> Siluriformes (Catfishes) > Pseudopimelodidae (Bumblebee catfishes, dwarf marbled catfishes)
Etymology: Microglanis: Greek, mikros = small + Greek, glanis = a fish that can eat the bait without touching the hook; a cat fish (Ref. 45335);  sparsus: Name from Latin 'sparsus' meaning ‘sprayed’, referring to the mottled color pattern observed on this species; an adjective..

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

; Água doce demersal.   Tropical

Distribuição Países | Áreas da FAO | Ecossistemas | Ocorrências | Point map | Introduções | Faunafri

South America: Brazil.

Tamanho / Peso / Idade

Maturity: Lm ?  range ? - ? cm
Max length : 2.3 cm SL macho/indeterminado; (Ref. 130492)

Descrição suscinta Morfologia | Morfometria

Raios anais : 9 - 11. This species is distinguished from all its congeners by the following set of characters: lateral line short and not reaching vertical through last dorsal-fin ray, with only 5-7 pores; pectoral-fin spine generally with only retrorse serrations; anal-fin rays 9-11. Colouration: head and trunk are mottled with light and dark brown color; light transverse band on the occipital region is narrow, mottled brown, and poorly defined; dark brown saddles poorly defined on the nuchal, subdorsal, and subadipose regions; axis of gill filaments with a dark stripe. Further distinguished in having a smaller adipose fin base length 18.8-20.4% SL (vs. 20.4-31.8 in M. cibelae, M. cottoides, M. eurystoma, M. leptostriatus, M. minutus, M. nigripinnis, M. parahybae, M. pataxo, M. robustus); greater caudal peduncle length 15.7-17.6% SL (vs. 10.0-15.7 in M. carlae, M. cibelae, M. cottoides, M. eurystoma, M. iheringi, M. maculatus, M. malabarbai, M. nigripinnis, M. parahybae, M. pataxo, M. pellopterygius, M. poecilus, M. secundus, M. variegatus); and greater caudal-peduncle depth 13.1-14.7% SL (vs. 10.1-13.1 in M. carlae, M. cibelae, M. cottoides, M. eurystoma, M. iheringi, M. leptostriatus, M. malabarbai, M. minutus, M. reikoae, M. nigripinnis, M. parahybae, M. pataxo, M. pellopterygius, M. poecilus, M. secundus, M. variegatus) (Ref. 130492).

Biologia     Glossário (p.ex. epibenthic)

Locality of collection has a well-preserved riparian forest, a river bed mainly muddy, with some sandy patches covered by organic matter, and abundant submerged leaf-litter. Stomach contents of two specimens examined included Ephemeroptera, Chironomidae larvae, and adult Diptera, denoting an insectivorous habit, typical for benthonic small catfish (Ref. 130492).

Ciclo de vida ou comportamento de acasalamento Maturidade | Reprodução | Desova | Ovos | Fecundidade | Larvas

Referência principal Upload your references | Referências | Coordenador : Shibatta, Oscar Akio | Colaboradores

Ruiz, W.B.G., 2016. Three new species of catfishes of the genus Microglanis from Brazil (Teleostei: Pseudopimelodidae), with comments on the characters used within the genus. Ichthyol. Explor. Freshwat. 27(3):211-232. [22 Nov. 2016 is the publication date without ZooBank registration, 18 Nov. with an electronic prepublication date; this serves as the date for Oct., Nov. and Dec.] (Ref. 130492)

Status na Lista Vermelha da UICN (Ref. 130435)


CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Ameaça para os humanos

  Harmless




Uso pelos humanos

FAO(Publication : search) | FishSource |

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Estimates based on models

Índice de diversidade filogenética (Ref. 82804):  PD50 = No PD50 data   [Uniqueness, from 0.5 = low to 2.0 = high].
Nível Trófico (Ref. 69278):  3.1   ±0.4 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100).