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Chromis xanthura (Bleeker, 1854)

Paletail chromis
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Native range | All suitable habitat | Point map | Year 2050
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Chromis xanthura   AquaMaps   Data sources: GBIF OBIS
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Image of Chromis xanthura (Paletail chromis)
Chromis xanthura
Picture by Randall, J.E.


Papua New Guinea country information

Common names: Pale-tail chromis
Occurrence: native
Salinity: marine
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Recorded from Kanudi and Massas Is., Madang (Ref. 6192); and Kimbe bay (Ref. 28888).
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/pp.html
National Fisheries Authority: http://www.spc.org.nc/coastfish/Countries/PNG/png.htm
Occurrences: Occurrences Point map
Main Ref: Kailola, P.J., 1987
National Database:

Common names from other countries

分类 / Names 俗名 | 同种异名 | Catalog of Fishes(, ) | 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) (Damselfishes) > Chrominae
Etymology: Chromis: Greek, chromis = a fish, perhaps a perch (Ref. 45335).
  More on author: Bleeker.

Environment: milieu / climate zone / depth range / distribution range 生态学

海洋 礁区鱼类; 非迁移的; 深度上下限 0 - 40 m (Ref. 7247).   热带; 35°N - 25°S

分布 国家 | FAO区域 | 生态系 | 标本纪录 | Point map | 简介 | Faunafri

Western Pacific: widespread, from southern Japan to Australia and Tonga; no records from Hawaii nor French Polynesia. Replaced by Chromis opercularis in the Indian Ocean (Ref. 129596).
太平洋: 在东印度洋到大洋洲的岛屿 (除了夏威夷群岛) 中的圣诞岛与澳洲西北部的外海礁石. 记录来自马尔地夫 (参考文献 5579) ,日本与台湾了。 (参考文献 1602 与 4868, 分别地) 在西印度洋被 Chromis opercularis 取代了。 (参考文献 37816)

大小 / 重量 / 年龄

Maturity: Lm ?  range ? - ? cm
Max length : 17.0 cm TL 雄鱼/尚未辨别雌雄; (Ref. 90102)

简单描述 检索表 | 型态特徵 | 形态测量图

背棘 (总数) : 13; 背的软条 (总数) : 10 - 11; 臀棘: 2; 臀鳍软条: 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); 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 are filamentous; broad black bands along the preopercular and opercular margins, sum width of two bands 15.3-27.9% (23.6%) of head length; distal half of soft-rayed portion of the dorsal fin is transparent in adults; upper or lower caudal-fin base no triangular black blotches; caudal peduncle and fin are tinged with yellow; soft-rayed portions of dorsal and anal fins are yellowish, with spinous portion of dorsal and pelvic fins dark blue in juveniles (Ref. 129596).
鱼随着体型大小与栖地展现色彩变化。 稚鱼是暗蓝灰色到一色彩艳丽的铁蓝色的具有一个鲜橘色-黄色的尾部。 成鱼是深灰色到黑色的, 而且在大多数的区域中有一个白色的尾部。

生物学特性     字汇 (例如 epibenthic)

Adults are found in steep outer reef slopes and shallow coastal reef flats, sometimes forming large aggregations feeding on zooplankton several meters above the bottom. Juveniles remain close to shelter. Oviparous, distinct pairing during breeding (Ref. 205). Eggs are demersal and adhere to the substrate (Ref. 205). Nests are found in small patches of loose sand under ledges or at the base of slopes (Ref. 9710). Males guard and aerate the eggs (Ref. 205). Diurnal species (Ref. 54980; 113699). Minimum depth reported taken from Ref. 128797.

发现于陡峭的外礁斜坡与水浅的海岸礁石平台了, 有时形成大的群集捕食浮游动物在底部上面的数公尺。 稚鱼保持接近庇护所。 筑巢在岩架下松散的砂小区块中或在斜坡的基底.(参考文献 9710)

Life cycle and mating behavior Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔鱼

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).太平洋: 在东印度洋到大洋洲的岛屿 (除了夏威夷群岛) 中的圣诞岛与澳洲西北部的外海礁石. 记录来自马尔地夫 (参考文献 5579) ,日本与台湾了。 (参考文献 1602 与 4868, 分别地) 在西印度洋被 Chromis opercularis 取代了。 (参考文献 37816)

主要参考文献 Upload your references | 参考文献 | 合作者 : Allen, Gerald R. | 合作者

Allen, G.R., 1991. Damselfishes of the world. Mergus Publishers, Melle, Germany. 271 p. (Ref. 7247)

世界自然保护联盟红皮书 (Ref. 130435)

  最不相关 (LC) ; Date assessed: 03 February 2021

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

对人类的威胁

  无害处的




人类利用

渔业: 商业性; 水族馆: 商业性
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Estimates based on models

Preferred temperature (Ref. 115969): 24.7 - 28.9, mean 27.7 (based on 424 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01413 (0.00668 - 0.02988), b=2.94 (2.77 - 3.11), in cm Total Length, based on LWR estimates for this species & Genus-body shape (Ref. 93245).
营养阶层 (Ref. 69278):  3.4   ±0.45 se; based on food items.
回复力 (Ref. 120179):  中等的, 族群倍增时间最少 1.4 - 4.4年 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100).
价格分类 (Ref. 80766):   Unknown.