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Opsariichthys pachycephalus  Günther, 1868

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Opsariichthys pachycephalus
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) > Cyprinidae (Minnows or carps) > ex-danioninae
Etymology: Opsariichthys: Greek, opsarion, -ou = a little portion fish + Greek, ichthys = fish (Ref. 45335).   More on author: Günther.

Environment / Climate / Range Ecology

Freshwater; demersal.   Subtropical, preferred ?

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

Asia: Taiwan.

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 16.0 cm TL male/unsexed; (Ref. 6898)

Short description Morphology | Morphometrics

Dorsal soft rays (total): 10-11; Anal soft rays: 11 - 13; Vertebrae: 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).

Biology     Glossary (e.g. epibenthic)

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

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 | References | Coordinator | Collaborators

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. Fish. DOI 10.1007/s10641-009-9499-y. (Ref. 81910)

IUCN Red List Status (Ref. 109396)

CITES (Ref. 94142)

Not Evaluated

Threat to humans

  Harmless




Human uses

FAO(Publication : search) | FisheriesWiki | Sea Around Us

More information

Countries
FAO areas
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Occurrences
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Ecology
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Common names
Synonyms
Metabolism
Predators
Ecotoxicology
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Maturity
Spawning
Fecundity
Eggs
Egg development
Age/Size
Growth
Length-weight
Length-length
Length-frequencies
Morphometrics
Morphology
Larvae
Larval dynamics
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Aquaculture
Aquaculture profile
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Genetics
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Heritability
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Processing
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Ciguatera
Speed
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Otoliths
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Internet sources

BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes (gen., sp.) | DiscoverLife | Faunafri | Fishtrace | GenBank(genome, nucleotide) | GOBASE | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | National databases | Otolith Atlas of Taiwan Fishes | PubMed | Scirus | SeaLifeBase | Tree of Life | Wikipedia(Go, Search) | World Records Freshwater Fishing | Zoobank | Zoological Record

Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5002   [Uniqueness, from 0.5 = low to 2.0 = high].
Trophic Level (Ref. 69278):  3.3   ±0.4 se; Based on size and trophs of closest relatives
Resilience (Ref. 69278):  Medium, minimum population doubling time 1.4 - 4.4 years (Fec = 712).
Vulnerability (Ref. 59153):  Low to moderate vulnerability (27 of 100) .