Macrognathus aculeatus (Bloch, 1786)

Lesser spiny eel

Catalog of Fishes (gen., sp.) | ITIS | CoL

Classification	Actinopterygii \| Synbranchiformes \| Mastacembelidae
Synonyms	Ophidium aculeatum, Mastacembelus aculeatus, Rhyncobdella aculeata, ... more
Common names	Spiny eel, 长吻棘鳅, Pa lot, ... more

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Image of Macrognathus aculeatus (Lesser spiny eel)

Picture by Roberts, T.R.

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Main reference

Roberts, T.R. 1989. (Ref. 2091)
Other references | Biblio | Coordinator | Collaborators

Size / Weight / Age

Max length : 38.0 cm TL male/unsexed; (Ref. 2073)

Environment

Benthopelagic; potamodromous (Ref. 51243); freshwater; brackish; pH range: 6.5 - 7.5; dH range: ? - 15

Climate / Range

Tropical; 23°C - 28°C (Ref. 1672)

Asia: Thailand, Malay Peninsula, Borneo and Indonesia. Reported from Bangladesh (Ref. 1479) and Nepal (Ref. 9496); India (Ref. 43634).
Countries | FAO areas | Ecosystems | Occurrences | Introductions

Short description

Dorsal spines (total): 14 - 20; Dorsal soft rays (total): 52 - 56; Anal spines: 3; Anal soft rays: 50 - 54. Body with series of obliquely oriented bars (Ref. 39392). Dorsal and anal fins with a row of isolated spines followed by a long continuous soft portion, both fins extending to but not confluent with caudal fin. Pelvic fins absent. Caudal fin rounded (Ref. 4792).

Occurs in medium to large-sized rivers (Ref. 12975). Found in lowland wetlands and peats. Uncommonly seen in aquarium trades (Ref. 57235).


IUCN Red List Status (Ref. 57073)	Threat to humans
Not Evaluated	Harmless

Human uses
Fisheries: minor commercial; aquarium: commercial


More information
Countries FAO areas Ecosystems Occurrences Introductions Ecology Diet Food items Food consumption Ration	Common names Synonyms Metabolism Predators Ecotoxicology Reproduction Maturity Spawning Eggs Egg development	Age/Size Growth Length-weight Length-length Length-frequencies Morphometrics Morphology Larvae Larval dynamics Recruitment	Other references Biblio Aquaculture Aquaculture profile Strains Genetics Allele frequencies Heritability Diseases Processing	Collaborators Pictures Stamps Sounds Ciguatera Speed Swim. type Gill area Otoliths Brains Vision

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Internet sources

Estimation of some characteristics with mathematical models

Resilience (Ref. 69278)

High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.)


Vulnerability (Ref. 59153)	Price category (Ref. 80766)
Low vulnerability (24 of 100)	Not marketed/unknown

Entered by Luna, Susan M.

Modified by Ortañez, Auda Kareen

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Page last modified by : elaxamana, 15 July 2009

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