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Pycnochromis acares (Randall & Swerdloff, 1973)

Midget chromis
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Pycnochromis acares
Picture by Randall, J.E.


Tonga country information

Common names: [No common name]
Occurrence: native
Salinity: marine
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: live export: yes;
Comments:
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/tn.html
National Fisheries Authority: http://www.spc.org.nc/coastfish/Countries/Tonga/tonga.htm
Occurrences: Occurrences Point map
Main Ref: Randall, J.E., J.T. Williams, D.G. Smith, M. Kulbicki, G.M. Tham, P. Labrosse, M. Kronen, E. Clua and B.S. Mann, 2003
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:   More on authors: Randall & Swerdloff.

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 - 37 m (Ref. 1602).   热带; 30°N - 26°S, 119°E - 133°W

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

Pacific Ocean: Mariana Islands to the Hawaiian and Society islands, south to Vanuatu and the Austral Islands. Possibly at Rowley Shoals (eastern Indian Ocean).
太平洋: 马里亚纳群岛到夏威夷与社会群岛, 南至万那度与奥斯垂群岛。 可能地在罗雷浅滩 (东印度洋).

大小 / 重量 / 年龄

Maturity: Lm ?  range ? - ? cm
Max length : 4.0 cm SL 雄鱼/尚未辨别雌雄; (Ref. 7247)

简单描述 检索表 | 型态特徵 | 形态测量图

背棘 (总数) : 12 - 13; 背的软条 (总数) : 11; 臀棘: 2; 臀鳍软条: 10 - 11.
珍珠白色有一个在软背鳍的后面基底上从眼睛后面到胸鳍基底, 与小又少于眼直径延伸黄斑的细长的黄色斑块。 尾鳍有黄色的背面与腹面边缘。

生物学特性     字汇 (例如 epibenthic)

Adults found in exposed seaward reefs. Sometimes inhabit clear lagoons or channels. They occur in small to large aggregations on the upper edge of the slope over live coral or rubble. Uncommon (Ref. 9710). Benthopelagic (Ref. 58302). Feeds on planktons (Ref. 89972). 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). Minimum depth reported taken from Ref. 128797.

发现于裸露的临海礁石了。 有时居住于清澈的泻湖或峡道。 在活珊瑚或碎石上的斜坡上缘上形成小群到大群鱼群。 罕见.(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: 马里亚纳群岛到夏威夷与社会群岛, 南至万那度与奥斯垂群岛。 可能地在罗雷浅滩 (东印度洋).

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

FAO(Publication : search) | FishSource |

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Trophic ecology
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Estimates based on models

Preferred temperature (Ref. 115969): 25.4 - 28.4, mean 27.4 (based on 140 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).
营养阶层 (Ref. 69278):  3.0   ±0.2 se; based on size and trophs of closest relatives
回复力 (Ref. 120179):  高度, 族群倍增时间少于 15个月 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100).