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Microglanis maculatus  Shibatta, 2014

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Microglanis maculatus
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Classification / Names Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii (ray-finned fishes) > Siluriformes (Catfish) > 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);  maculatus: From the Latin adjective macula, meaning spotted, in reference to the dark brown spots on the trunk.

Environment / Climate / Range Ecology

Freshwater; demersal.   Tropical; 23°C - ? (Ref. 95500)

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

South America: Rio dos Patos basin, upper rio Tocantins basin in Brazil.

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 3.7 cm SL male/unsexed; (Ref. 95500)

Short description Morphology | Morphometrics

Dorsal spines (total): 1; Dorsal soft rays (total): 6; Vertebrae: 32. Distinguished from all other species of Microglanis in having rounded spots on the flank. Differs also from its congeners, except M. robustus, by its emarginate caudal fin with upper lobe slightly longer than the lower and light spot in nuchal region very small or absent. Can be diagnosed from M. robustus by the following characters: anterior margin of pectoral-fin spine with single hook (vs. bifurcated hooks between antrorse and retrorse hooks); rays of pectoral fin I, 6 (vs. I, 5); anterior blotch of trunk U shaped (vs. inverted U shaped); dorsal and caudal fins with broad dark stripes (vs. thin); dorsal-fin spine length 6.9-11.1% SL (vs. 11.3-15.4% SL); pectoral-fin spine length 12.9-17.7% SL (vs. 16.4-20.6% SL); orbital diameter 11.5-12.6% SL (vs.14.7-16.4% SL); and mouth width 16.8-17.5% SL (vs. 11.4-13.2% SL) (Ref. 95500).

Biology     Glossary (e.g. epibenthic)

Collected at the mouth of a creek in ribeirão Pouso Alegre with adventitious roots of riparian trees along the banks. Collections were done on rocky bed above this area but no specimen was captured. The ribeirão Pouso Alegre is characterized by the following conditions: riparian vegetation in good state; bedrock, with sand, clay litter, logs and branches at the mouth; dissolved oxygen 7.8 mg/L; pH 7.65; conductivity 85ì S/cm; water temperature 22.5° C; mean depth 6.5±0.93 cm; mean width 4.1±0.66 m; and mean water speed 0.12±0.02 m/s (Ref. 95500).

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

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

Shibatta, O.A., 2014. A new species of Microglanis (Siluriformes: Pseudomipemodidae) from the upper rio Tocantins basin, Goiás State, Central Brazil. Neotrop. Ichthyol. 12(1):81-87. (Ref. 95500)

IUCN Red List Status (Ref. 115185)

CITES (Ref. 108899)

Not Evaluated

Threat to humans

  Harmless




Human uses

FAO(Publication : search) | FisheriesWiki |

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Internet sources

BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes (gen., sp.) | DiscoverLife | ECOTOX | Faunafri | Fishes of Iran | Fishtrace | GenBank(genome, nucleotide) | GloBI | GOBASE | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Scirus | SeaLifeBase | Tree of Life | Wikipedia(Go, Search) | World Records Freshwater Fishing | Zoological Record

Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm Total Length, based on all LWR estimates for this body shape (Ref. 93245).
Trophic Level (Ref. 69278):  3.2   ±0.4 se; Based on size and trophs of closest relatives
Resilience (Ref. 69278):  .
Vulnerability (Ref. 59153):  Low vulnerability (10 of 100) .