Macrognathus circumcinctus  (Hora, 1924)

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

Actinopterygii (ray-finned fishes) > Synbranchiformes (Spiny eels) > Mastacembelidae (Spiny eels)
Etymology: Macrognathus: Greek, makros = great + Greek, gnathos = jaw (Ref. 45335).

Environment / Climate / Range Ecology

Freshwater; demersal; pH range: 7.0 - ? ; dH range: 15 - ?.   Tropical; 24°C - 27°C (Ref. 13371)

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 20.0 cm SL male/unsexed; (Ref. 57235)

Short description Morphology | Morphometrics

Dorsal spines (total): 26 - 30. Differs from all other mastacembelids found in Myanmar and Thailand in having body with a series of very regular, oblique, dark bars, each with a narrow extension extending partially or entirely across abdomen, and having ripe females with a very elongate genital papillae (Ref. 39392).

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

Asia: Mekong and Chao Phraya basins, southeastern Thailand, Malay Peninsula and Sumatra, Indonesia.

Biology     Glossary (e.g. epibenthic)

Occurs in streams to peats (Ref. 57235). Found in medium to large-sized rivers and flooded fields (Ref. 12975). Nocturnal, feeding on invertebrates and small fishes (Ref. 13371). Commonly seen in aquarium trades and fish markets (Ref. 57235).

Main reference Upload your references | References | Coordinator | Collaborators

Kottelat, M., 2001. Fishes of Laos. WHT Publications Ltd., Colombo 5, Sri Lanka. 198 p.

IUCN Red List Status (Ref. 90363)

  Least Concern (LC) 

Threat to humans

  Harmless




Human uses

FAO(Publication : search) | FisheriesWiki | Sea Around Us

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Summary page | Point data | Common names | Photos

Internet sources

BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes (gen., sp.) | DiscoverLife | Faunafri | Fishtrace | GenBank(genome, nucleotide) | GOBASE | Google Books | Google Scholar | Google | IGFA World Record | iSpecies | Public aquariums | PubMed | Scirus | SeaLifeBase | Tree of Life | uBio | Wikipedia(Go, Search) | World Records Freshwater Fishing | Zoological Record

Estimates of some properties based on empirical models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00250 (-0.18863 - 0.19362), b=3.02 (2.92 - 3.13), based on LWR estimates for this family-BS (Ref. 93245).
Trophic Level (Ref. 69278):  4.0   ±0.61 se; Based on food items.
Resilience (Ref. 69278):  High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153):  Low vulnerability (16 of 100) .
Price category (Ref. 80766):   Unknown.