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Chromis opercularis (Günther, 1867)

Doublebar chromis
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Native range | All suitable habitat | Point map | Year 2050
This map was computer-generated and has not yet been reviewed.
Chromis opercularis   AquaMaps   Data sources: GBIF OBIS
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Image of Chromis opercularis (Doublebar chromis)
Chromis opercularis
Picture by Randall, J.E.

Mauritius country information

Common names: [No common name]
Occurrence: native
Salinity: marine
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments:
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/mp.html
National Fisheries Authority: http://ncb.intnet.mu/fishco/index.htm
Occurrences: Occurrences Point map
Main Ref: Allen, G.R., 1991
National Database:

Common names from other countries

Double-bar puller, Gombing-puyu operkular tanda, 'Atoti, ... more

分類 / Names 俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa

Teleostei > Ovalentaria/misc (Various families in series Ovalentaria) 鱸形目 (Various families in series Ovalentaria) > Pomacentridae (Damselfishes) 雀鯛科 (Damselfishes) > Chrominae
Etymology: Chromis: Greek, chromis = a fish, perhaps a perch (Ref. 45335).
  More on author: Günther.

Environment: milieu / climate zone / depth range / distribution range 生態學

海洋 礁區魚類; 非遷移的; 深度上下限 4 - 40 m (Ref. 7247).   熱帶

分布 國家 | FAO區域 | 生態系 | 發現紀錄 | Point map | 簡介 | Faunafri

Indian Ocean: South Africa to Kenya, Maldives to the Andaman Sea and Australia. Previous reports from the Western Pacific (Taiwan, eastern Australia and Vanuatu Island) most probably refer fo Chromis xanthura (Ref. 129596).
印度洋: 在西印度洋與安達曼海廣泛分佈; 也已知來自聖誕島。

大小 / 重量 / 年齡

Maturity: Lm ?  range ? - ? cm
Max length : 17.0 cm TL 雄魚/尚未辨別雌雄; (Ref. 90102)

簡短描述 型態特徵 | 形態測量圖

背棘 (總數): 13; 背的軟條 (總數): 10-11; 臀棘 2; 臀鰭軟條: 10 - 11. This species is distinguished by the following set of characters: D XIII,10-11 (mode 11); A II,10-11 (11); pectoral-fin rays 18-20 (19); upper and lower procurrent caudal-fin rays 3; pored lateral-line scales 17-18 (18); gill rakers 6-8 (7) + 19-22 (21) = 26-30 (28); the longest dorsal fin soft ray length 24.6-36.4% (mean 29.4%) of SL; first anal-fin spine length 6.5-8.4% (7.1%) of SL; caudal-fin length 43.9-59.8% (48.6%) of SL; posterior tips of caudal-fin lobes filamentous; presence of broad black bands along preopercular and opercular margins, sum width of two bands 15.3-27.9% (23.6%) of head length; in adults, the distal half of soft-rayed portion of dorsal fin is transparent; no triangular black blotches at the upper or lower caudal-fin base; caudal peduncle and fin are tinged yellow; soft-rayed portions of dorsal and anal fins are yellowish, while spinous portion of dorsal and pelvic fins dark blue in juveniles (Ref. 129596).
這種與 C. xanthura 的幼齡期看起來同一。 (參考文獻 48636)

生物學特性     字彙 (例如 epibenthic)

Adults inhabit outer reef slopes and deep lagoons (Ref. 9710). They form small to moderate aggregations on reef crests with moderate currents (Ref. 48636). 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).

棲息於外礁斜坡且深潟湖。 (參考文獻 9710) 在珊瑚礁冠上對中等的群集形成小的且水流平穩的地方.(參考文獻 48636)

Life cycle and mating behavior 成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚

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).印度洋: 在西印度洋與安達曼海廣泛分佈; 也已知來自聖誕島。

主要參考資料 Upload your references | 參考文獻 | 合作者 : Allen, Gerald R. | 合作者

Motomura, H., H. Nishiyama and S.N. Chiba, 2017. Review of the Chromis xanthura species group (Perciformes: Pomacentridae), with description of a new species. Ichthyol. Res. 65:177-191. (Ref. 129596)

IUCN 瀕危狀態 (Ref. 130435)

  無危 (LC) ; Date assessed: 01 August 2021

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

對人類具威脅

  無害處的




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Estimates based on models

Preferred temperature (Ref. 115969): 24.5 - 29, mean 27.9 (based on 668 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01259 (0.00579 - 0.02736), b=3.03 (2.84 - 3.22), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
營養階層 (Ref. 69278):  2.7   ±0.31 se; based on food items.
回復力 (Ref. 120179):  中等的, 族群倍增時間最少 1.4 - 4.4年 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100).