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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 / Climate / Range Ecology

Marine; reef-associated; depth range 70 - 80 m (Ref. 87782). Subtropical, preferred ?

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Northwest Pacific: Taiwan.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 34.7 cm SL male/unsexed; (Ref. 87782); 32.5 cm SL (female)

Short description Morphology | Morphometrics

Dorsal spines (total): 6; Dorsal soft rays (total): 26-30; Anal spines: 2; Anal 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

Main reference Upload your references | References | Coordinator : Randall, John E. | Collaborators

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. 115185)

Not Evaluated

CITES (Ref. 94142)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO(Publication : search) | FisheriesWiki |

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Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.01995 (0.00910 - 0.04376), 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 ±0.2 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) .

Entered by Capuli, Estelita Emily

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Naso tergus Ho, Shen & Chang, 2011