Actinopteri (ray-finned fishes) > Perciformes/Serranoidei
(Groupers) > Serranidae
(Sea basses: groupers and fairy basslets) > Anthiadinae
Etymology: Plectranthias: Greek, plektron = anyhting to strike with, spur + Greek, anthias = a fish, Sparus aurata (Ref. 45335); nanus: Named for its small size..
More on author: Randall.
Environment: milieu / climate zone / depth range / distribution range
Marine; reef-associated; depth range 6 - 65 m (Ref. 90102). Tropical; 28°N - 25°S
Pacific Ocean: widespread, and except for the two Red Sea specimens, this species is not found in the Western Indian Ocean.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 4.0 cm SL male/unsexed; (Ref. 8944)
A secretive species that inhabits coral or rubble habitats of deep channels and exposed reefs (Ref. 1602, 58302). Benthic (Ref. 58302). Solitary in crevices (Ref 90102).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Paxton, J.R., D.F. Hoese, G.R. Allen and J.E. Hanley, 1989. Pisces. Petromyzontidae to Carangidae. Zoological Catalogue of Australia, Vol. 7. Australian Government Publishing Service, Canberra, 665 p. (Ref. 7300)
IUCN Red List Status (Ref. 125652)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Preferred temperature (Ref. 123201
): 24.9 - 28.8, mean 27.4 °C (based on 254 cells).
Phylogenetic diversity index (Ref. 82804
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01349 (0.00618 - 0.02945), b=3.00 (2.81 - 3.19), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic level (Ref. 69278
): 3.4 ±0.5 se; based on size and trophs of closest relatives
Resilience (Ref. 120179
): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153
): Low vulnerability (10 of 100).
Nutrients (Ref. 124155
): Calcium = 262 [122, 663] mg/100g ; Iron = 1.04 [0.57, 2.00] mg/100g ; Protein = 18.4 [16.3, 20.4] % ; Omega3 = 0.221 [0.111, 0.438] g/100g ; Selenium = 22.7 [9.7, 52.9] μg/100g ; VitaminA = 208 [55, 766] μg/100g ; Zinc = 2.09 [1.26, 3.43] mg/100g (wet weight);