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Teleostei (teleosts) > Cypriniformes (Carps) > Gastromyzontidae (Hillstream loaches)
Etymology: Yaoshania: Derived from the Dayaoshan, the mountain from where the type species was recorded.

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

Freshwater; demersal. Subtropical

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

Asia: Meicun, Changtan and Dishui streams on Dayaoshan Mountain in Guangxi, China.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 5.8 cm SL male/unsexed; (Ref. 45625)

Short description Identification keys | Morphology | Morphometrics

Dorsal soft rays (total): 10; Anal soft rays: 8. Can be diagnosed from other Balitorid species by a unique enlarged lip lamina at angle of mouth, connecting the upper lip and maxillary. Additional characters useful to distinguish this species, but not unique to it include the following: large gill opening, with the ventral extremity reaching lower extremity of pectoral-fin base; upper lip and rostral fold separated by a groove, rostral fold with four notches to accommodate rostral barbels; two pairs of rostral barbels and one pair of maxillary barbels; a small fleshy lobe present posterior to each maxillary barbel; pectoral fin with one simple and 17-18 branched rays; pelvic fin with one simple and 8-9 branched rays; side of body lacking vertical blotches in adult; 71-75 lateral line scales (Ref. 93072).

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

Main reference Upload your references | References | Coordinator | Collaborators

Yang, J., M. Kottelat, J.-X. Yang and X.-Y. Chen, 2012. Yaoshania and Erromyzon kalotaenia, a new genus and species of balitorid loaches for Guangxi, China (Teleostei: Cypriniformes). Zootaxa 3586:173-186. (Ref. 93072)

IUCN Red List Status (Ref. 130435: Version 2024-1)

Least Concern (LC) ; Date assessed: 01 March 2007

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
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Spawning aggregations
Eggs
Egg development
Larvae
Larval dynamics

Distribution
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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
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Stamps, coins, misc.

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Internet sources

Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00617 (0.00268 - 0.01421), b=3.11 (2.91 - 3.31), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trophic level (Ref. 69278): 2.7 ±0.2 se; based on size and trophs of closest relatives

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

Yaoshania pachychilus (Chen, 1980)