Classificazione / Nomi
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Perciformes/Serranoidei (Groupers) >
Serranidae (Sea basses: groupers and fairy basslets)
Etymology: Chelidoperca: Greek, chelidon, -onos = swift, as black as a swift + Greek, perke = perch (Ref. 45335); pollux: Name 'pollux' from a star in the Gemini constellation, also known as the brother of the star 'Castor', in reference to its relationship with the morphologically most similar congener C. flavimacula, distributed in the Andaman Sea. A noun in apposition.
Ambiente: milieu / zona climatica / distribuzione batimetrica / gamma di distribuzione
Ecologia
marino demersale; distribuzione batimetrica 100 - 150 m (Ref. 137845). Tropical
Western Central Pacific: Vietnam.
Dimensione / Peso / Età
Maturità: Lm ? range ? - ? cm
Max length : 7.2 cm SL maschio/sesso non determinato; (Ref. 137845)
Breve descrizione
Chiavi di identificazione | Morfologia | Morfometria
Spine dorsali (totale) : 10; Raggi dorsali molli (totale) : 10; Spine anali: 3; Raggi anali molli: 6. This species is distinguished from its congeners by the following set of characters: pored lateral-line scales 43 or 44; scale rows between lateral line and base of 6th dorsal-fin spine 3; subopercular serrae 24-26; interorbital scales just reaching level of mid-orbit; scales on ventral surface of lower jaw extending anteriorly onto posterior portion of dentary; a longitudinal orange stripe from posterior margin of orbit to caudal-fin base (not retained as prominent dark marking in preserved specimens); anal fin with 9-11 relatively large yellow spots (not retained in preserved specimens); body depth at pelvic-fin origin 23.5-24.1% of SL; head length 35.6-36.3% of SL; orbit diameter 11.0-11.7% of SL; postorbital length 17.9-18.8% of SL; and pectoral-fin length 24.7-26.4% of SL (Ref. 137845).
Body shape (shape guide): fusiform / normal; Cross section: compressed.
Ciclo vitale e comportamento di accoppiamento
Maturità | Riproduzione | Deposizione | Uova | Fecondità | Larve
Matsunuma, M., T.A Hoang, K. Tachihara, H. Hirasaka and H. Motomura, 2024. Chelidoperca pulchella and C. pollux, two new perchlet species (Serranidae) from the northwestern Pacific Ocean. Ichthyol. Res. 72:38-54. (Ref. 137845)
Stato della Lista Rossa IUCN (Ref. 130435: Version 2025-2 (Global))
Minaccia per l'uomo
Harmless
Usi umani
Pesca: di nessun interesse
Strumenti
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Stime basate su modelli
Indice di diversità filogenetica (Fonte Biblio.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01072 (0.00511 - 0.02246), b=3.06 (2.88 - 3.24), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Livello trofico (Fonte Biblio.
69278): 3.5 ±0.5 se; based on size and trophs of closest relatives
Resilienza (Fonte Biblio.
120179): Alto, tempo minimo di raddoppiamento della popolazione meno di 15 mesi (Preliminary K or Fecundity.).
Vulnerabilità della pesca (Ref.
59153): Low vulnerability (10 of 100).
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