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Yunnanilus nigromaculatus (Regan, 1904)

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drawing shows typical species in Nemacheilidae.

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

Teleostei (teleosts) > Cypriniformes (Carps) > Nemacheilidae (Brook loaches)
Etymology: Yunnanilus: From Yunnan, city on southwest China.
More on author: Regan.

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

Freshwater; demersal. Subtropical; 25°N - 24°N

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

Asia: known only from Dianchi Lake, Yunnan, China.

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 7.7 cm SL male/unsexed; (Ref. 12040)

Short description Identification keys | Morphology | Morphometrics

Dorsal soft rays (total): 11 - 12; Anal soft rays: 8. Distinguished from all other species of the genus by its terminal mouth with an upwardly directed gape; absence of lateral line and head pores; scaled predorsal area; 8 1/2 branched dorsal rays; 14 branched caudal rays (Ref. 12040).

Biology     Glossary (e.g. epibenthic)

Adults inhabit shallow waters of lake (less than 1 m deep) among vegetation, but not in inlets or outlets of the lake. Feed on shrimps (Ref. 12040).

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

Main reference Upload your references | References | Coordinator | Collaborators

Kottelat, M. and X.L. Chu, 1988. Revision of Yunnanilus with description of a miniature species flock and six new species from China (Cypriniformes: Homalopteridae). Environ. Biol. Fishes 23(1-2):65-93. (Ref. 12040)

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

  Endangered (EN) (B1ab(iii)); Date assessed: 01 November 2022

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
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Ecology
Ecology
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Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
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Maturity/Gills rel.
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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 | 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=0.00724 (0.00347 - 0.01512), b=3.01 (2.83 - 3.19), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Trophic level (Ref. 69278):  3.6   ±0.59 se; based on food items.
Resilience (Ref. 120179):  Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100).