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Pycnochromis iomelas (Jordan & Seale, 1906)

Half-and-half chromis
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Pycnochromis iomelas
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Philippines country information

Common names: [No common name]
Occurrence: questionable
Salinity: marine
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Reported from Tubbataha Reefs (Ref. 53416). Outside distributional range, occurrence needs further verification (Ref. 92902).
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/rp.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: World Wide Fund for Nature (Philippines), 2004
National Database:

Common names from other countries

Half-and-half puller, 半光鳃鱼, Tu'u'u-i'usina, ... more

分類 / Names 共通名の | 類義語 | Catalog of Fishes(部類, 種) | ITIS | CoL | WoRMS | Cloffa

> Ovalentaria/misc (Various families in series Ovalentaria) > Pomacentridae (Damselfishes) > Chrominae
Etymology:   More on authors: Jordan & Seale.

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

海 関連する礁; 移住性ではない; 深さの範囲 3 - 35 m (Ref. 7247).   Tropical

分布 国々 | 国連食糧農業機関の区域 | エコシステム | 事件 | Point map | 導入 | Faunafri

Pacific Ocean: Great Barrier Reef and northern New Guinea to Samoa and the Society Islands (Ref. 7247). There are no valid records of this species in the western Pacific north of New Guinea, and none for the islands of Micronesia (Ref. 92902).

サイズ / 重さ / 年齢

Maturity: Lm ?  range ? - ? cm
Max length : 8.0 cm FL オス/雌雄の選別がない; (Ref. 5525)

簡単な記述 検索表 | 形態学 | 形態計測学

背面の脊椎 (合計) : 12; 背鰭 (合計) : 13 - 14; 肛門の骨: 2; 臀鰭: 13 - 14.

生物学     用語集 (例 epibenthic)

Adults inhabit passages and outer reef slopes, solitarily or in small groups. They are sometimes seen in mixed aggregations with the closely related species C. margaritifer (Ref. 7247). 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). Diurnal species (Ref. 54980; 113699).

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

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).

主な参考文献 Upload your references | 参考文献 | コーディネーター : Allen, Gerald R. | 協力者

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

IUCNのレッドリストの状況は (Ref. 130435)

  軽度懸念 (LC) ; Date assessed: 01 August 2021

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

人間に対する脅威

  Harmless




Human uses

水産業: 商業; 水族館・水槽: 商業
FAO(Publication : search) | FishSource |

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Estimates based on models

Preferred temperature (Ref. 115969): 25.3 - 27.9, mean 27 (based on 86 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.02188 (0.01273 - 0.03760), b=3.03 (2.88 - 3.18), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
栄養段階 (Ref. 69278):  2.7   ±0.30 se; based on food items.
回復力 (Ref. 120179):  高い, １５か月以下の倍増期間の最小個体群 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100).
価格帯 (Ref. 80766):   Unknown.