Classification / Names
Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa
Teleostei (teleosts) >
Trachichthyiformes (Roughies) >
Trachichthyidae (Slimeheads)
Etymology: Aulotrachichthys: Greek, aulos = flute + Greek, trachys, -eia, -ys = rough; nyx: Named after Nyx, the Greek goddess of night, referring to its overall darker appearance than its congeners; noun in apposition..
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; bathypelagic; depth range 195 - 200 m (Ref. 129295). Subtropical
Distribution
Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri
Northwest Pacific: eastern Taiwan.
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 8.3 cm SL male/unsexed; (Ref. 129295)
Short description
Morphology | Morphometrics
Dorsal
spines
(total): 5;
Dorsal
soft rays
(total): 13;
Anal
spines: 3;
Anal
soft rays: 8;
Vertebrae: 27. This species is disinguished from its congeners by having the following set of characters: striated area extending posteriorly, slightly beyond middle point on the caudal peduncle, its length 66.7% caudal-peduncle length; D V,13; A III,8; gill rakers on first gill arch 6 + 1 + 14 = 21; abdominal scutes 9; lateral-scale rows 58; body height 34.1% SL; pelvic-fin-anal-fin length 30.3% SL; forehead height 2 4.1% SL; pectoral-fin length 18.1% SL; dorsal-fin-anal-fin length 42.6% SL; dorsal-fin length 35.3% SL; postdorsal length 29.6% SL; length between the end
of the anal-fin base to the end of the striated area (A-SA length), 12.4% SL. Colouration: body overall dark-brown, with chest, isthmus, and abdominal scutes uniformly black, and a distinct black vertical line along caudal-fin base (Ref, 129295),
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Su, Y., H.-C. Ho and H.-C. Lin, 2023. A new luminous roughy fish from northeastern Taiwan, with comments on congeners in Taiwan (Trachichthyidae: Aulotrachichthys). J. Vertebr. Biol. 72(23060):1-15. (Ref. 129295)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
More information
CountriesFAO areasEcosystemsOccurrencesIntroductionsStocksEcologyDietFood itemsFood consumptionRation
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
Age/SizeGrowthLength-weightLength-lengthLength-frequenciesMorphometricsMorphologyLarvaeLarval dynamicsRecruitmentAbundanceBRUVS
ReferencesAquacultureAquaculture profileStrainsGeneticsElectrophoresesHeritabilityDiseasesProcessingNutrientsMass conversion
Tools
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Internet sources
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = No PD50 data [Uniqueness, from 0.5 = low to 2.0 = high].
Trophic level (Ref.
69278): 4.1 ±0.6 se; based on size and trophs of closest relatives
Resilience (Ref.
120179): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
