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

Teleostei (teleosts) > Cypriniformes (Carps) > Xenocyprididae (East Asian minnows)
Etymology: longinasus: The specific epithet, used as a noun in apposition, is derived from the Latin longus (long) and nasus (snout), alluding to the presence of a long snout (length greater than eye diameter) compared with all other congeners.
Eponymy: Dr Charles William Metz (1889–1975) was an American zoologist, geneticist and taxonomist whose doctorate was awarded by Stanford University. He co-wrote: A catalog of the fishes known from the waters of Korea (1913). (Ref. 128868), visit book page.

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

Freshwater; pelagic. Tropical

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

Asia: China. Known exclusively from the Hongshui-He River of the Pearl River drainage at Du’an County, Guangxi Province, South China (Ref. 80361).

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 12.9 cm SL male/unsexed; (Ref. 104754)

Short description Identification keys | Morphology | Morphometrics

Anal soft rays: 13 - 14; Vertebrae: 40 - 41. A species of Metzia with a superior mouth, 43 or 44 lateral-line scales, a long snout (length 31.7–37.0% of HL); a long head (length 27.2–30.8% of SL), 10 or 11 branched anal-fin rays, and absence of a longitudinal black band extending along each side of body from extremity of gill opening to caudal-fin base.

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

Main reference Upload your references | References | Coordinator | Collaborators

Gan, X., J.-H. Lan and E. Zhang, 2009. Metzia longinasus, a new cyprinid species (Teleostei: Cypriniformes) from the Pearl River drainage in Guangxi Province, South China. Ichthyol. Res. 56:55-61. (Ref. 80361)

IUCN Red List Status (Ref. 130435: Version 2024-2)

Near Threatened (NT) (B1a+2a); Date assessed: 22 August 2023

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 composition
Food consumption
Food rations
Predators

Ecology
Ecology

Population dynamics
Growth parameters
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
Recruitment
Abundance

Life cycle
Reproduction
Maturity
Maturity/Gills rel.
Fecundity
Spawning
Spawning aggregations
Eggs
Egg development
Larvae
Larval dynamics

Distribution
Countries
FAO areas
Ecosystems
Occurrences
Introductions
BRUVS - Videos

Anatomy
Gill area
Brain
Otolith

Physiology
Body composition
Nutrients
Oxygen consumption
Swimming type
Swimming speed
Visual pigments
Fish sound
Diseases & Parasites
Toxicity (LC50s)

Genetics
Genetics
Heterozygosity
Heritability

Human related
Aquaculture systems
Aquaculture profiles
Strains
Ciguatera cases
Stamps, coins, misc.

Outreach
Collaborators

Taxonomy
Common names
Synonyms
Morphology
Morphometrics
Pictures

References
References

Tools

Special reports

Check for Aquarium maintenance | Check for Species Fact Sheets | Check for Aquaculture Fact Sheets

Download XML

Summary page | Point data | Common names | Photos

Internet sources

Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5039 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00871 (0.00412 - 0.01842), b=3.09 (2.92 - 3.26), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trophic level (Ref. 69278): 3.2 ±0.4 se; based on size and trophs of closest relatives

Resilience (Ref. 120179): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): Low vulnerability (10 of 100).

Metzia longinasus Gan, Lan & Zhang, 2009