Klassifizierung / Names
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Ovalentaria/misc (Various families in series Ovalentaria) >
Pomacentridae (Damselfishes) > Chrominae
Etymology: Chromis: Greek, chromis = a fish, perhaps a perch (Ref. 45335); onumai: Named for Hisashi Onuma, who first discovered the species.
Eponymy: Hisashi Onuma “who was the first to discover the species” was also thanked for his assistance in collecting the new damselfish at Izu-oshima Island, Japan, “and for his excellent underwater photographs.” (Ref. 128868), visit book page.
Umwelt: Milieu / Klimazone / Tiefenbereich / Verbreitungsgebiet
Ökologie
seewasser riff-verbunden; tiefenbereich 51 - 90 m (Ref. 75861). Temperate
Northwest Pacific: Taiwan and Japan.
Größe / Gewicht / Alter
Geschlechtsreife: Lm ?  range ? - ? cm
Max length : 12.6 cm SL Männchen/unbestimmt; (Ref. 75861)
Kurzbeschreibung
Bestimmungsschlüssel | Morphologie | Morphometrie
Rückenflossenstacheln (insgesamt) : 14; Rückenflossenweichstrahlen (insgesamt) : 12 - 13; Afterflossenstacheln: 2; Afterflossenweichstrahlen: 12 - 13; Wirbelzahl: 26. This species is characterized by the following: D XIV, 12-13; A II, 12-13; pectoral fin rays 19-20; 3 spiniform caudal fin rays; 16-17 tubed lateral line scales; gill rakers 5-7 + 19-20 = 25-27; white spots about a pupil size posteriorly, 1 at rear base of dorsal fin, another at the rear base of anal fin, and the third at mid base of caudal fin (these 3 spots usually fading after death, but may be visible as a pale area on preserved specimen) (Ref. 75861).
Body shape (shape guide): short and / or deep; Cross section: compressed.
Life history characteristics for the family specify that this group is oviparous, with distinct pairing during breeding (Ref. 205). Eggs are demersal and adhere to the substrate (Ref. 205). Males guard and aerate the eggs (Ref. 205).
Lebenszyklus und Paarungsverhalten
Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fruchtbarkeit | Larven
Oviparous, distinct pairing during breeding (Ref. 205). Eggs are demersal and adhere to the substrate (Ref. 205). Males guard and aerate the eggs (Ref. 205).
Senou, H. and T. Kudo, 2007. A new species of the genus Chromis (Perciformes: Pomacentridae) from Taiwan and Japan. Bull. Nat. Mus. Nat. Sci. Ser. A. Suppl. 1:51-57. (Ref. 75861)
IUCN Rote Liste Status (Ref. 130435: Version 2025-2 (Global))
Bedrohung für Menschen
Harmless
Nutzung durch Menschen
Tools
Zusatzinformationen
Download XML
Internet Quellen
Schätzungen auf der Grundlage von Modellen
Phylogenetischer Diversitätsindex (Ref. 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=0.01820 (0.00822 - 0.04027), b=3.00 (2.82 - 3.18), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245). |
Trophische Ebene (Ref. 69278) |
3.0 ±0.1 se; based on size and trophs of closest relatives |
Widerstandsfähigkeit (Ref. 120179) |
hoch, Verdopplung der Population dauert weniger als 15 Monate. (Preliminary K or Fecundity.). |
Anfälligkeit der Fischerei (Ref. 59153) |
Low to moderate vulnerability (29 of 100). 🛈 |