Hemigrammus yinyang

You can sponsor this page

Hemigrammus yinyang Lima & Sousa, 2009

Upload your photos and videos
Google image
Image of Hemigrammus yinyang
No image available for this species;
drawing shows typical species in Characidae.

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

Teleostei (teleosts) > Characiformes (Characins) > Characidae (Characins; tetras) > Stethaprioninae
Etymology: Hemigrammus: Greek, hemi = half + Greek, gramma = letter, signal (Ref. 45335);  yinyang: Derived from the ancient Taoistic Chinese philosophy and religion, describing two primal opposing but complementary principles said to be found in all non-static objects and processes in the universe. Yin, in Chinese, originally meant "sunless", as the northern side of a mountain, and as a concept evolved to embody the dark, passive, feminine element, corresponding to the night, the winter, the water, and the earth. Yang originally meant "sunny", as the southern side of a mountain, and it came to embody the bright, active, masculine element, corresponding to the day, the summer, the air and the fire. All forces in nature are expressions of yin and yang states. It is in their complementarity that balance is given to the universe. The new species is named in allusion to its complementary orange and black humeral blotches, which are reminiscent of the Taiji diagram, the pictorial representation of the state of undifferentiated absolute, encompassing both the yin and yang qualities (Ref. 82434).

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

Freshwater; benthopelagic. Tropical

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

South America: known only from tributaries of the middle rio Tiquie, a tributary of the rio Uaupes, upper rio Negro basin, Amazonas state, Brazil

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 2.9 cm SL male/unsexed; (Ref. 82434)

Short description Morphology | Morphometrics

Dorsal spines (total): 2; Dorsal soft rays (total): 9; Anal spines: 3-4; Anal soft rays: 19 - 23; Vertebrae: 33 - 34. Distinguished from all other species of the genus Hemigrammus by having (in life) an orange blotch, located between two dark humeral blotches, immediately ahead and slightly above the posterior, darker second humeral blotch. Differs further from all congeners, except Hemigrammus haraldi, Hemigrammus luelingi, Hemigrammus neptunus, Hemigrammus ocellifer, Hemigrammus pretoensis, and Hemigrammus pulcher, by the possession of two humeral blotches. Diagnosed from all these species by the absence of a blotch on the caudal peduncle (vs. caudal peduncle blotch present).

Biology     Glossary (e.g. epibenthic)

Caught in moderately large (2-6 m wide) streams, with clear water, carrying little suspended sediment. Also collected from dark-colored waters or muddy, silt-laden waters (Ref. 82434).

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

Main reference Upload your references | References | Coordinator | Collaborators

Lima, F.C.T. and L.M. Sousa, 2009. A new species of Hemigrammus from the upper rio Negro basin, Brazil, with comments on the presence and arrangement of anal-fin hooks in Hemigrammus and related genera (Ostariophysi:Characiformes:Characidae). aqua, Int. J. Ichthyol. 15(3):153-168. (Ref. 82434)

IUCN Red List Status (Ref. 130435)

  Least Concern (LC) ; Date assessed: 07 November 2018

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

FAO - Publication: search | FishSource |

More information

Countries
FAO areas
Ecosystems
Occurrences
Introductions
Stocks
Ecology
Diet
Food items
Food consumption
Ration
Common names
Synonyms
Metabolism
Predators
Ecotoxicology
Reproduction
Maturity
Spawning
Spawning aggregation
Fecundity
Eggs
Egg development
Age/Size
Growth
Length-weight
Length-length
Length-frequencies
Morphometrics
Morphology
Larvae
Larval dynamics
Recruitment
Abundance
BRUVS
References
Aquaculture
Aquaculture profile
Strains
Genetics
Electrophoreses
Heritability
Diseases
Processing
Nutrients
Mass conversion
Collaborators
Pictures
Stamps, Coins Misc.
Sounds
Ciguatera
Speed
Swim. type
Gill area
Otoliths
Brains
Vision

Tools

Special reports

Download XML

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 | Zoobank | 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=0.01413 (0.00671 - 0.02974), b=3.08 (2.91 - 3.25), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Trophic level (Ref. 69278):  3.0   ±0.4 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100).