Actinopterygii (ray-finned fishes) > Perciformes
(Perch-likes) > Acanthuridae
(Surgeonfishes, tangs, unicornfishes) > Nasinae
Etymology: Naso: Latin, nasus = nose (Ref. 45335); mcdadei: Named in honor of Michael McDade, collector of the type specimens (Ref. 37792).
Environment / Climate / Range
Marine; reef-associated; depth range 5 - 65 m (Ref. 57178). Tropical; 10°S - 22°S, 114°E - 124°E (Ref. 57253)
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 75.0 cm SL male/unsexed; (Ref. 37792)
Morphology | Morphometrics
Indo-West Pacific: East Africa to the Great Barrier Reef, including the Timor Sea.
Inhabits steep drop-offs of offshore coral reefs or rocky outcrops (Ref. 37792). Feeds on algae and larger zooplankton (Ref. 37792). Solitary or in groups (Ref. 90102). Minimum depth from Ref. 58018.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Randall, J.E., 2001. Surgeonfishes of Hawai'i and the world.. Mutual Publishing and Bishop Museum Press, Hawai'i. 123 p. (Ref. 37792)
IUCN Red List Status (Ref. 96402)
CITES (Ref. 94142)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningFecundityEggsEgg 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=0.02455 (0.01094 - 0.05506), b=2.94 (2.75 - 3.13), based on LWR estimates for this Genus-body shape (Ref. 93245
Trophic Level (Ref. 69278
): 2.7 ±0.31 se; Based on food items.
Resilience (Ref. 69278
): Low, minimum population doubling time 4.5 - 14 years (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): High vulnerability (57 of 100) .