Classification / Names
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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); raki: Named raki, meaning 'feeling shy to confront people'” in the Dhivehi language; referring to it being shy by nature and typically hides; noun in apposition.
Environment: milieu / climate zone / εύρος βάθους / distribution range
Οικολογία
Θαλασσινό(ά) βενθικό(ς); εύρος βάθους 100 - 125 m (Ref. 132548). Tropical
West Indian Ocean: Maldives.
Μέγεθος / Βάρος / Age
Γεννητική Ωρίμανση: Lm ? range ? - ? cm
Max length : 7.0 cm SL αρσενικό/απροσδιόριστο; (Ref. 132548)
Short description
Κλείδες προσδιορισμού | Μορφολογία | Μορφομετρία
Ραχιαίες άκανθες (συνολικά) : 10; Μαλακές ραχιαίες ακτίνες (συνολικά) : 15; Εδρικές άκανθες: 3; Μαλακές εδρικές ακτίνες: 7; Σπόνδυλοι: 26. This species is distinguished from its congeners by the following set of characters: D X,15; A III,7; pectoral-fin rays 13|13 (13|12), all unbranched; principal caudal-fin rays 9 + 8; lateral line complete with 30-32 tubed scales; supraneural bones 3, predorsal formula 0/0 + 0/2/1 + 1/1/1/;
gill rakers 5 + 12; circumpeduncular scales 11-12; oblique rows of scales on cheek 8; longest dorsal spine the 4th or 5th; no fleshy tips on the dorsal-fin spines; no antrorse serrations on preopercle. Colouration: with a series of irregularly shaped patches of red-orange along dorsal two-thirds of body; patches divided into two indistinct rows by the lateral line; patches of red-orange dorsally and posteriorly, becoming more yellow-orange anteriorly and ventrally, golden yellow on opercle and maxilla; anal fin pointed, mostly white proximally, yellow distally, with two yellow spots approximately one-third orbit diameter at the base of third spine and fifth and sixth soft rays; two irregularly shaped yellow-orange spots, approximately one-third orbit diameter, at either side of centermost caudal-fin rays; small orange spot, approximately one-half orbit in diameter, at the base of pelvic fin (Ref.132548).
Cross section: compressed.
Observed to inhabits small holes of reef walls at several locations at approximately 100 to 125 m depth (Ref. 132548).
Life cycle and mating behavior
Γεννητική Ωρίμανση | Αναπαραγωγή | Γεννοβολία | Αβγά | Γονιμότητα | Προνύμφες
Shepherd, B., H.T. Pinheiro, A. Najeeb, C.R. Rocha and L.A. Rocha, 2025. Plectranthias raki (Teleostei, Serranidae), a new species of perchlet from mesophotic coral ecosystems of the Maldives. ZooKeys 1223:333-344. (Ref. 132548)
IUCN Red List Status (Ref. 130435: Version 2025-1)
Threat to humans
Harmless
Human uses
αλιεία: χωρίς ενδιαφέρον
Εργαλεία
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Διαδικτυακές πηγές
Estimates based on models
Phylogenetic diversity index (Αναφ.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Τροφικό Επίπεδο (Αναφ.
69278): 3.7 ±0.6 se; based on size and trophs of closest relatives
Ελαστικότητα (Αναφ.
120179): Υψηλό, ελάχιστος χρόνος για διπλασιασμό πληθυσμού < 15 μήνες (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
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