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Hemimyzon taitungensis Tzeng and Shen, 1982
Life   Vertebrata   Fish   Balitoridae   Hemimyzon


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Following modified from Taiwan Biodiversity National Information Network
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Kingdom Animalia  
 Phylum Chordata  
 Class Actinopterygii  
 Order Cypriniformes  
 Family Balitoridae  
 Genus Hemimyzon  
  Hemimyzon taitungensis    Tzeng & Shen, 1982 
Provider: Tseng, Chin-Tsian 
hierarchy tree    download xml    download txt    Chinese Page    
Citation: 臺灣魚類誌(沈等, 1993); 臺灣淡水及河口魚類誌(陳&方, 1999)
Character: Snout short, wider than depth. Mouth inferior, arched; three rostral fold in front of mouth. Four maxillary barbells in a row and well developed papillae in two rows on upper lip; two pairs of mandibular barbells at corner of mouth. Body thin, elongated, posterior laterally compressed; ventral profile horizontal to origin of anal; dorsal slightly horizontal. Scales tiny, ventral surface of head, thorax and abdomen naked, lateral line scales complete. L.l.:79-87; dorsal fin rays:3+8; pectoral fin rays:12-14+12-14; pelvic fin rays:6-7+10-12; anal fin rays:2+5; pectoral and pelvic fins laterally expanded; pelvic fins bases united; anus near the middle way between pelvic fin end and anal fin origin; caudal fin forked, lower lobe slightly longer than upper. Dorsal fin origin slightly behind pelvic fin origin. Greenish and blueish, irregularly dark blotches along back. Black stripes on dorsal and caudal fins. Resemble to H. formosanum, and can be distinguished by the united pelvic fin base and slender caudal peduncle of H. taitungensis. 
Habitat: Primary freshwater fish, lives in moderately fast running water of high and middle elevation. Benthic. Polyphagia, feed on aquatic insects and diatom on rock. 
Distribution: Endemic to eastern portion of Central Mountain Range (CMR) of Taiwan. Presently known from branches at high elevation of Hualien River, Hsiukuluan River and Peinan River. 
Name Code: 380992
  IUCN Red List:VU  D2        Taiwan Wildlife Conservation Act- Endangered        Chen,2012:EN   Chen,2012:EN    Endemic     
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Following modified from FishBase
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http://www.fishbase.org/Summary/speciesSummary.php?genusname=Hemimyzon&speciesname=taitungensis ---> https://www.fishbase.se/Summary/speciesSummary.php?genusname=Hemimyzon&speciesname=taitungensis
https://www.fishbase.se/Summary/speciesSummary.php?genusname=Hemimyzon&speciesname=taitungensis ---> https://www.fishbase.se/summary/Hemimyzon-taitungensis.html

Common name (e.g. trout)

Genus + Species (e.g. Gadus morhua)

Hemimyzon taitungensis Tzeng & Shen , 1982

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Pictures | Google image Image of Hemimyzon taitungensis Hemimyzon taitungensis
Picture by Liao, T.-Y.

Classification / Names Common names | Synonyms | Catalog of Fishes ( gen. , sp. ) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii (ray-finned fishes) > Cypriniformes (Carps) > Balitoridae (River loaches)
Etymology: Hemimyzon: Greek, hemi = half + greek, myzon = to suckle (Ref. 45335 ) .

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

Freshwater; demersal; depth range 0 - 10 m (Ref. 6898 ).   Subtropical

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

Asia: endemic to Taiwan.

Size / Weight / Age

Maturity: L m   ?   range ? - ? cm
Max length : 10.0 cm TL male/unsexed; (Ref. )

Biology     Glossary (e.g. epibenthic)

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

Main reference Upload your references | References | Coordinator | Collaborators

Shen, S.C. (ed.) , 1993. Fishes of Taiwan. Department of Zoology, National Taiwan University, Taipei. 960 p. (Ref. 5193 )

IUCN Red List Status (Ref. 119314 )

  Vulnerable (VU)  (D2); Date assessed: 01 August 1996

CITES (Ref. 115941 )

Not Evaluated

CMS (Ref. 116361 )

Not Evaluated

Threat to humans

  Harmless




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Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805 ):  PD 50 = 0.5001   [Uniqueness, from 0.5 = low to 2.0 = high]. Bayesian length-weight: a=0.00562 (0.00236 - 0.01338), b=3.08 (2.87 - 3.29), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245 ). Trophic Level (Ref. 69278 ):  2.9   ±0.3 se; Based on size and trophs of closest relatives Resilience (Ref. 69278 ):  . Vulnerability (Ref. 59153 ):  Low vulnerability (10 of 100) .

Entered by Wang, Shen-Shih Modified by Bailly, Nicolas Fish Forum
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