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Mystus rhegma Fowler, 1935

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Mystus rhegma
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Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa

Teleostei (teleosts) > Siluriformes (Catfishes) > Bagridae (Bagrid catfishes)
Etymology: Mystus: Greek, mystax = whiskered, used by Belon in 1553 to describe all fishes with whiskers (Ref. 45335).
More on author: Fowler.

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

Freshwater; demersal. Tropical

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

Asia: Bangkok, Meklong and Chao Phraya basins in Thailand and Lower Mekong.

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 12.0 cm SL male/unsexed; (Ref. 12693)

Short description Identification keys | Morphology | Morphometrics

Dorsal spines (total): 1; Dorsal soft rays (total): 7; Anal soft rays: 11 - 14; Vertebrae: 41 - 43. Differs from all other Mystus sensu stricto by its strongly demarcated, narrow, midlateral longitudinal dark stripe (straddling the lateral line canal), and in having base of outer mandibular barbels slightly behind, rather than in front of, a line vertical to posterior margin of labial rictus. Adipose fin relatively short, originating at a distance of about one eye diameter posterior to dorsal fin and extending only a short distance onto caudal peduncle (Ref. 10418). Total gill rakers 24-28 (Ref. 12975). Adipose fin base longer than anal fin base, originating slightly behind dorsal; cranial fontanel extending posteriorly to base of occipital process (Ref. 43281).

Biology     Glossary (e.g. epibenthic)

Facultative air-breathing in the genus (Ref. 126274); Adults occur in medium to large-sized rivers and flooded fields (Ref. 12975). Feed on insect larvae, fish scales and other fish body parts, as well as plant debris. Breeding habits and seasonal movements are unknown (Ref. 12693). Oviparous, distinct pairing possibly like other members of the same family (Ref. 205).

Life cycle and mating behavior Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larvae

Main reference Upload your references | References | Coordinator | Collaborators

Roberts, T.R., 1994. Systematic revision of Asian bagrid catfishes of the genus Mystus sensu stricto, with a new species from Thailand and Cambodia. Ichthyol. Explor. Freshwat. 5(3):241-256. (Ref. 10418)

IUCN Red List Status (Ref. 130435)

  Data deficient (DD) ; Date assessed: 19 January 2011

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

FAO - Publication: search | FishSource |

More information

Trophic ecology
Food items
Diet compositions
Food consumptions
Food rations
Predators
Ecology
Ecology
Population dynamics
Growths
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversions
Recruitments
Abundances
Life cycle
Reproduction
Maturities
Fecundities
Spawnings
Spawning aggregations
Egg(s)
Egg developments
Larvae
Larval dynamics
Distribution
Countries
FAO areas
Ecosystems
Occurrences
Introductions
BRUVS - Videos
Anatomy
Gill areas
Brains
Otoliths
Physiology
Body compositions
Nutrients
Oxygen consumptions
Swimming type
Swimming speeds
Visual pigment(s)
Fish sounds
Diseases / Parasites
Toxicities (LC50s)
Genetics
Genetics
Electrophoreses
Heritabilities
Human related
Aquaculture systems
Aquaculture profiles
Strains
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Stamps, coins, misc.
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References

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Internet sources

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: genus, species | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: genome, nucleotide | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Tree of Life | Wikipedia: Go, Search | World Records Freshwater Fishing | Zoobank | Zoological Record

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=0.00832 (0.00384 - 0.01800), b=2.95 (2.77 - 3.13), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Trophic level (Ref. 69278):  3.5   ±0.56 se; based on food items.
Resilience (Ref. 120179):  Medium, minimum population doubling time 1.4 - 4.4 years (Assuming Fec < 10,000).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100).