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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.
Environment: milieu / climate zone / Mức độ sâu / distribution range
Sinh thái học
Biển Cùng sống ở rạn san hô; Mức độ sâu 51 - 90 m (Ref. 75861). Temperate
Northwest Pacific: Taiwan and Japan.
Bộ gần gũi / Khối lượng (Trọng lượng) / Age
Chín muồi sinh dục: Lm ? range ? - ? cm
Max length : 12.6 cm SL con đực/không giới tính; (Ref. 75861)
Short description
Khóa để định loại | Hình thái học | Sinh trắc học
Các tia vây lưng cứng (tổng cộng) : 14; Các vây lưng mềm (tổng cộng) : 12 - 13; Tia cứng vây hậu môn: 2; Tia mềm vây hậu môn: 12 - 13; Động vật có xương sống: 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).
Life cycle and mating behavior
Chín muồi sinh dục | Sự tái sinh sản | Đẻ trứng | Các trứng | Sự sinh sản | Ấu trùng
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 Red List Status (Ref. 130435: Version 2025-1)
Threat to humans
Harmless
Human uses
Các công cụ
Special reports
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Estimates based on models
Preferred temperature (Tài liệu tham khảo
123201): 17.2 - 23.7, mean 21.9 °C (based on 22 cells).
Phylogenetic diversity index (Tài liệu tham khảo
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01820 (0.00804 - 0.04119), b=2.99 (2.81 - 3.17), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
Mức dinh dưỡng (Tài liệu tham khảo
69278): 3.0 ±0.1 se; based on size and trophs of closest relatives
Thích nghi nhanh (Tài liệu tham khảo
120179): Chiêù cao, thời gian nhân đôi của chủng quần tối thiểu là dưới 15 tháng (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
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