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Perciformes/Serranoidei (Groupers) >
Anthiadidae (Fairy basslets or Streamer basses)
Etymology: Pelontrus: The meaning of Pelontrus remains unclear, as it is not specified by Smith (1961).
Environnement : milieu / zone climatique / profondeur / gamme de distribution
Écologie
marin démersal; profondeur ? - 190 m (Ref. 138291). Subtropical
Northwest Pacific: Ryukyu Is.
Taille / Poids / Âge
Maturité: Lm ?  range ? - ? cm
Max length : 5.8 cm SL mâle / non sexé; (Ref. 138291)
Description synthétique
Clés d'identification | Morphologie | Morphométrie
Épines dorsales (Total) : 10; Rayons mous dorsaux (Total) : 15 - 16. This species is distinguished from its congeners by the following set of characters: D X,15-16; pectoral-fin rays 14, all unbranched; lateral line complete, with 29 or 30 pored scales; scale rows above lateral line 3; diagonal rows of large scales on cheek between eye and corner of preopercle 5 or 6; preopercle with two antrorse spines on the ventral margin, 20-29 serrae on posterior margin; margins of subopercle and interopercle have a few serrae (weak in large individuals); minute flaps at tips of first to ninth dorsal-fin spines; caudal fin shallowly emarginate, some ray branches are distinctively elongated past fin margin; fourth dorsal-fin spine is the longest, its length 110.6-128.6% that of third spine. Colouration: body pinkish-white with two longitudinal rows of irregular orange-red blotches on the upper half of lateral surface when fresh (rows close together in smaller than ca. 5.0 cm SL), blotches interconnecting anteriorly on upper and lower rows, and posterior half of lower row; four faint orange-red vertical bands seen below lateral line on posterior half of body and two distinct yellow blotches on cheek in fresh specimens. body uniformly yellowish-brown with two longitudinal rows of irregular dark blotches on the upper half of lateral surface in preserved specimens (faint in small specimens) (Ref. 132559).
Cross section: compressed.
Cycle de vie et comportement reproducteur
Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
Wada, H., T. Suzuki, H. Senou and H. Motomura, 2020. Plectranthias ryukyuensis, a new species of perchlet from the Ryukyu Islands, Japan, with a key to the Japanese species of Plectranthias (Serranidae: Anthiadinae). Ichthyol. Res. 67(2):294-307. (Ref. 132559)
Statut dans la liste rouge de l'IUCN (Ref. 130435: Version 2025-2 (Global))
Menace pour l'homme
Harmless
Utilisations par l'homme
Pêcheries: sans intérêt
Outils
Articles particuliers
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Sources Internet
Estimations basées sur des modèles
Indice de diversité phylogénétique (Réf. 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.02512 (0.00987 - 0.06393), b=2.97 (2.74 - 3.20), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
Niveau trophique (Réf. 69278) |
3.3 ±0.4 se; based on size and trophs of closest relatives |
Résilience (Réf. 120179) |
Haut, temps minimum de doublement de population inférieur à 15 mois (Preliminary K or Fecundity.). |
Vulnérabilité de la pêche (Ref. 59153) |
Low vulnerability (12 of 100). 🛈 |