Gymnothorax ypsilon Hatooka & Randall, 1992
Y-bar moray
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| Native range | All suitable habitat | Point map | Year 2050 |
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| This map was computer-generated and has not yet been reviewed. |
| Gymnothorax ypsilon AquaMaps Data sources: GBIF OBIS |
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Gymnothorax ypsilon
Picture by Chen, H.M./Loh, K.H.
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Picture by Chen, H.M./Loh, K.H.
Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa
Teleostei (teleosts) > Anguilliformes (Eels and morays) > Muraenidae (Moray eels) > Muraeninae
Etymology: Gymnothorax: Greek, gymnos = naked + Greek, thorax, -akos = breast (Ref. 45335); ypsilon: ypsilon after the 20th letter of the Greek alphabet, in reference to the Y-shaped dark bars often found on this species (Ref. 10659).
More on authors: Hatooka & Randall.
Etymology: Gymnothorax: Greek, gymnos = naked + Greek, thorax, -akos = breast (Ref. 45335); ypsilon: ypsilon after the 20th letter of the Greek alphabet, in reference to the Y-shaped dark bars often found on this species (Ref. 10659).
More on authors: Hatooka & Randall.
Environment: milieu / climate zone / depth range / distribution range Ecology
Marine; demersal; depth range 110 - 185 m (Ref. 58302). Subtropical
Distribution Territories | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri
Pacific Ocean: southern Japan and the Hawaiian Islands.
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 89.0 cm TL male/unsexed; (Ref. 35990); 77.6 cm TL (female)
Max length : 89.0 cm TL male/unsexed; (Ref. 35990); 77.6 cm TL (female)
Short description Identification keys | Morphology | Morphometrics
Anal spines: 0; Anal soft rays: 151 - 154; Vertebrae: 141 - 153. A species of Gymnothorax of moderate length. Dorsal fin moderately high, its origin before gill opening. Anus before mid-body. Jaw teeth sharp and uniserial. Body creamy light brown with 26-35 distinct, narrow, dark crossbars extending onto fins (some bars on most specimens Y-shaped). Anterior part of head uniformly light brown. Anal fin with a white margin (Ref. 10659). MVF 5-56-149 (Ref. 35990).
Body shape (shape guide): eel-like.
Body shape (shape guide): eel-like.
Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Main reference
Upload your references | References | Coordinator | Collaborators
Böhlke, E.B. and J.E. Randall, 2000. A review of the moray eels (Anguilliformes: Muraenidae) of the Hawaiian Islands, with descriptions of two new species. Proc. Acad. Nat. Sci. Philad. 150:203-278. (Ref. 35990)
IUCN Red List Status (Ref. 130435: Version 2025-2 (Global))
Least Concern (LC) ; Date assessed: 18 August 2011
CITES
Not Evaluated
Threat to humans
Harmless
Human uses
Fisheries: minor commercial
FAO - Publication: search | FishSource |
More information
Trophic ecology
Food items (preys)
Diet composition
Food consumption
Food rations
Predators
Food items (preys)
Diet composition
Food consumption
Food rations
Predators
Ecology
Ecology
Ecology
Population dynamics
Growth parameters
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
Recruitment
Abundance
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
Spawning
Spawning aggregations
Eggs
Egg development
Larvae
Larval dynamics
Reproduction
Maturity
Maturity/Gills rel.
Fecundity
Spawning
Spawning aggregations
Eggs
Egg development
Larvae
Larval dynamics
Anatomy
Gill area
Brain
Otolith
Gill area
Brain
Otolith
Physiology
Body composition
Nutrients
Oxygen consumption
Swimming type
Swimming speed
Visual pigments
Fish sound
Diseases & Parasites
Toxicity (LC50s)
Body composition
Nutrients
Oxygen consumption
Swimming type
Swimming speed
Visual pigments
Fish sound
Diseases & Parasites
Toxicity (LC50s)
Genetics
Genome
Genetics
Heterozygosity
Heritability
Genetic Diversity
Genome
Genetics
Heterozygosity
Heritability
Genetic Diversity
Human related
Aquaculture systems
Aquaculture profiles
Strains
Ciguatera cases
Stamps, coins, misc.
Aquaculture systems
Aquaculture profiles
Strains
Ciguatera cases
Stamps, coins, misc.
Tools
Special reports
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Internet sources
AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: genus, species | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GloBI | Google Books | Google Scholar | Google | IGFA World Record | National databases | OneZoom | Open Tree of Life | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | TreeBase | Tree of Life | Wikipedia: Go, Search | World Records Freshwater Fishing | Zoobank | Zoological Record
Estimates based on models
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Phylogenetic diversity index (Ref. 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
| Bayesian length-weight | a=0.00032 (0.00020 - 0.00051), b=3.25 (3.11 - 3.39), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref. 93245). |
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Trophic level (Ref. 69278) |
4.1 ±0.7 se; based on size and trophs of closest relatives |
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Resilience (Ref. 120179) |
Low, minimum population doubling time 4.5 - 14 years (Preliminary K or Fecundity.). |
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Fishing Vulnerability (Ref. 59153) |
High vulnerability (57 of 100). 🛈 |
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Price category (Ref. 80766) |
Medium. |