Klassificering / Namn
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Perciformes/Serranoidei (Groupers) >
Anthiadidae (Fairy basslets or Streamer basses)
Etymology: Xenanthias: Although Regan (1908) did not specific the allusion of Xenanthias, the name is probably the combination of ξένος (xénos, meaning strange or foreign), and anthias, possibly an indication to a strange anthias; 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.
Miljö: miljö / Klimatzon / djupintervall / distributionsområde
Ekologi
marina revassocierade; djupintervall ? - 83 m (Ref. 122373). Tropical
Southeast Pacific: Easter Island.
Storlek / Vikt / Ålder
Könsmognad: Lm ? range ? - ? cm
Max length : 4.0 cm SL hane/ej könsbestämd; (Ref. 122373)
Kort beskrivning
Bestämningsnycklar | Morfologi | Morfometri
Taggstrålar i ryggfenan (totalt) : 10; Mjukstrålar i ryggfenan (totalt) : 18; Taggstrålar i analfenan: 3; Mjukstrålar i analfenan: 7; Ryggkotor: 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).
Cross section: compressed.
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.
Livscykel och parningsbeteende
Könsmognad | Reproduktion | Lek | Ägg | Fekunditet | Larver
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)
Status på IUCN:s rödlista (Ref. 130435: Version 2025-2 (Global))
Hot mot människor
Harmless
Mänskliga användningsområden
Fiskeri: saknar intresse
Verktyg
Särskilda rapporter
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Uppskattningar baserade på modeller
Index för fylogenetisk mångfald (Ref.
82804): PD
50 = 0.5005 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01413 (0.00621 - 0.03212), b=3.00 (2.81 - 3.19), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trofisk nivå (Ref.
69278): 3.6 ±0.5 se; based on size and trophs of closest relatives
Resiliens (Ref.
120179): Hög, lägsta populationsfördubblingstid mindre än 15 månader (Preliminary K or Fecundity.).
Sårbarhet i fisket (Ref.
59153): Low vulnerability (10 of 100).
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