Teleostei (teleosts) >
Perciformes/Serranoidei (Groupers) >
Anthiadidae (Fairy basslets or Streamer basses)
Etymology: Plectranthias: Greek, plektron = anyhting to strike with, spur + Greek, anthias = a fish, Sparus aurata (Ref. 45335); ahiahiata: A Rapa Nui name from the phrase ahiahiata meaning 'the last moments of light before nightfall', referring to the colors of the fish compared to the beautiful Rapa Nui sunsets; noun in apposition.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; reef-associated; depth range ? - 83 m (Ref. 122373). Tropical
Southeast Pacific: Easter Island.
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 4.0 cm SL male/unsexed; (Ref. 122373)
Short description
Identification keys | Morphology | Morphometrics
Dorsal spines (total): 10; Dorsal soft rays (total): 18; Anal spines: 3; Anal soft rays: 7; Vertebrae: 26. This species is distinguished for its congeners by the following set of characters: D X,18, the fourth dorsal spine is the longest; pectoral-fin rays18; LL continuous and complete, tubed scales 31; circumpeduncular scales 16; head length 43.3% SL; first dorsal spine 4.5% SL; third anal spine 13.7% SL; gill rakers 6+11. Colouation: overall orange-red with predominantly yellow snout, dorsal, pelvic and anal fins, caudal peduncle with a brilliant red spot outlined in white and four white spots on each side, following the contour of the lateral line (Ref. 122373).
Collected from rocky patch reef surrounded by a large sandy area using a hand nets at a depth of 83 m. It was then transported to the surface alive in a perforated plastic jar.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Shepherd, B., T. Phelps, H.T. Pinheiro, A. Pérez-Matus and L.A. Rocha, 2018. Plectranthias ahiahiata, a new species of perchlet from a mesophotic ecosystem at Rapa Nui (Easter Island) (Teleostei, Serranidae, Anthiadinae). ZooKeys 762:105-116. (Ref. 122373)
IUCN Red List Status (Ref. 130435: Version 2024-1)
Threat to humans
Harmless
Human uses
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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].
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).
