Classification / Names
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Actinopterygii (ray-finned fishes) > Perciformes
(Perch-likes) > Acanthuridae
(Surgeonfishes, tangs, unicornfishes) > Nasinae
Etymology: Naso: Latin, nasus = nose (Ref. 45335); tergus: Name from the word 'tergus' meaning ‘to hide’, refers to the typical appearance of this species that makes it resemble subadults of many other Naso species.
Environment: milieu / climate zone / depth range / distribution range
Marine; reef-associated; depth range 70 - 80 m (Ref. 87782). Subtropical
Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri
Northwest Pacific: Taiwan.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 34.7 cm SL male/unsexed; (Ref. 87782); 32.5 cm SL (female)
Morphology | Morphometrics
soft rays: 26 - 28. This species differs from its congeners in having D VI; acute head, without rostral projection or tuberosity in adults; bony plates of caudal peduncle 2; relatively large eye (6.3-7.2% SL); median body depth, 2.8-2.9 in SL; teeth on upper jaw 100-120, on lower jaw 90-110; uniformly brownish body color; relatively small adult size which might not exceed 350 mm SL; and a different genome structure (Ref. 87782).
This species feeds on benthic crustaceans and bivalves, indicating that this fish feeds on marine organisms living on the sea floor. Caught by bottom gill-net and hook and line at 70-80 m depth (Ref. 87782).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Ho, H.-C., K.-N. Shen and C.-W. Chang, 2011. A new species of the unicornfish genus Naso (Teleostei: Acanthuridae) from Taiwan, with comments on its phylogenetic relationship. The Raffles Bull. Zool. 59(2):205-211. (Ref. 87782)
IUCN Red List Status (Ref. 120744)
CITES (Ref. 115941)
Threat to humans
CountriesFAO areasEcosystemsOccurrencesIntroductionsStocksEcologyDietFood itemsFood consumptionRation
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01995 (0.00890 - 0.04475), b=3.00 (2.82 - 3.18), in cm Total Length, based on LWR estimates for this Genus-body shape (Ref. 93245
Trophic Level (Ref. 69278
): 2.4 ±0.1 se; Based on size and trophs of closest relatives
Resilience (Ref. 69278
): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Moderate vulnerability (39 of 100) .