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Opsariichthys pachycephalus Günther, 1868

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Opsariichthys pachycephalus
Picture by Liao, T.-Y.

Chinese Taipei (Taiwan) country information

Common names: [No common name]
Occurrence: native
Salinity: freshwater
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Widespread across northern and western Taiwan (including Ilan, Taipei, Taoyuan, Shinchu, Miaoli, Taichung, Chanhwa, Yunlin, Charyi, and Tainan Counties), except river basins south of the Tzengwen River. Artificially introduced in eastern Taiwan (Hualien and Taitung Counties) which has subsequently expanded its range in these basins and caused greatly substantial declines of the locally endemic cyprinid (Aphyocypris kikuchii) and gobiid fishes (two species of Rhinogobius spp.) (Ref. 81910). Also Ref. 5193, 33508, 47271.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/tw.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Chen, I.-S., J.-H. Wu and Huang S.-P., 2009
National Database: The Fish Database of Taiwan

Common names from other countries

台湾鱲, 溪哥, 苦槽仔, ... more

Classification / Names Populärnamn | synonymer | Catalog of Fishes(Släkte, Arter) | ITIS | CoL | WoRMS | Cloffa

> Cypriniformes (Carps) > Xenocyprididae (East Asian minnows)
Etymology: Opsariichthys: Greek, opsarion, -ou = a little portion fish + Greek, ichthys = fish (Ref. 45335).
  More on author: Günther.

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

; sötvatten bottenlevande.   Subtropical

Utbredning Länder | FAO områden | Ekosystem | Förekomster | Point map | Utplanteringar | Faunafri

Asia: Taiwan.

Size / Vikt / Age

Maturity: Lm ?  range ? - ? cm
Max length : 16.0 cm TL hane/ej könsbestämd; (Ref. 6898)

Short description Morfologi | Morfometri

Mjukstrålar i ryggfenan (totalt): 10-11; Mjukstrålar i analfenan: 11 - 13; Ryggkotor: 39 - 41. More than 48 (modally 50-54) scales on lateral line; 20-23 predorsal scales; 4+36-37 (= 40-41) vertebral count; maxillary extending to or beyond vertical midline of orbit in female; and opercle and ventral side of head orange-red to pink-red in adult male (Ref. 95038).

Biologi     Ordlista (t.ex. epibenthic)

Life cycle and mating behavior Könsmognad | Reproduktion | Lek | Ägg | Fecundity | Larver

Mating behavior: Usually begins with fighting among males. Only one mates. Females rest on sandy ground and the male presses her belly. This makes the female tilt with her anus closer to the male. The male vibrates and releases the sperm. Subordinate males often join the spawning pair, perhaps to release their sperm.

Main reference Upload your references | referenser | Koordinator | Medarbetare

Chen, I.-S., J.-H. Wu and Huang S.-P., 2009. The taxonomy and phylogeny of the cyprinid genus Opsariichthys Bleeker (Teleostei: Cyprinidae) from Taiwan, with description of a new species. Environ. Biol. Fishes 86:165-183. (Ref. 81910)

IUCN Red List Status (Ref. 130435)

  Not Evaluated 

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless




Human uses

FAO(Publication : search) | FishSource |

Ytterligare information

Länder
FAO områden
Ekosystem
Förekomster
Utplanteringar
Stocks
Ekologi
Föda
Födoslag
Födointag
Näringsinnehåll
Populärnamn
synonymer
Metabolik
Predatorer
Ekotoxikologi
Reproduktion
Könsmognad
Lek
Fecundity
Ägg
Egg development
Age/Size
Tillväxt
Length-weight
Length-length
Length-frequencies
Morfometri
Morfologi
Larver
Larvdynamik
Rekrytering
Abundans
referenser
Vattenbruk
Vattenbruksprofil
Avelslinjer
Genetik
Electrophoreses
Ärftlighet
Sjukdomar
Behandling
Mass conversion
Medarbetare
Bilder
Stamps, Coins Misc.
Ljud
Ciguatera
Hastighet
Simsätt
Gälyta
Otoliths
Hjärnstorlek
Syn

Verktyg

E-book | Fälthandbok | Bestämningsnycklar | Längdfördelnings-verktyg | Livshistorie-verktyg | Prickkarta | Classification Tree | Catch-MSY |

Special reports

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

Download XML

Summary page | Point data | Populärnamn | Photos

Internet-källor

Aquatic Commons | BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes(Släkte, Arter) | DiscoverLife | ECOTOX | Faunafri | Fishtrace | GenBank(genome, nucleotide) | GloBI | GOBASE | | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Nationella databaser | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Scirus | SeaLifeBase | Tree of Life | Wikipedia(Go, sök) | World Records Freshwater Fishing | Zoobank | Zoological Record

Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5002   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00871 (0.00415 - 0.01826), b=3.09 (2.92 - 3.26), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Trofisk nivå (Ref. 69278):  3.2   ±0.4 se; based on size and trophs of closest relatives
Resiliens (Ref. 120179):  Mellan, lägsta populationsfördubblingstid 1,4-4,4 år (Fec = 712).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100).