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); sahulensis: Named for its geographic range, limited to the Sahul Shelf, portion of the continental shelf lying off the northwestern coast of Australia.
Environment: milieu / climate zone / 深度上下限 / distribution range
生態學
海洋 礁區魚類; 深度上下限 15 - 80 m (Ref. 125611).
分布
國家 | FAO區域 | 生態系 | 發現紀錄 | 分布圖 | 簡介 | Faunafri
Eastern Indian Ocean: northwestern Australia.
大小 / 重量 / 年齡
成熟度: Lm ? range ? - ? cm
Max length : 6.0 cm SL 雄魚/尚未辨別雌雄; (Ref. 125611)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
背棘 (總數) : 13; 背的軟條 (總數) : 10 - 13; 臀棘: 2; 臀鰭軟條: 9 - 11; 脊椎骨: 26. This species is distinguished by the following set of characters: D XIII,10-13 (usually XIII,12); A II,9-11 (usually II,10); pectoral-fin rays 17-20 (usually 18-19); spiniform caudal-fin rays 2; tubed lateral-line scales 17-19 (rarely 17); total gill rakers on first branchial arch 29-34 (usually 31-32); body depth 2.1-2.4 (mean 2.2) in SL. Colouration: in life yellowish brown on dorsal head, nape, spinous dorsal fin, and back, grading to gray-brown on sides, with a prominent saddle-like white spot near the base of last dorsal-fin rays extending onto upper caudal peduncle; brownish bands edged with white along the upper and lower margins of caudal fin (Ref. 125611).
Cross section: compressed.
Usually found on the outer slope of coral reefs and on gradually sloping or flat bottoms of trawling grounds, presumably around rock outcrops, sponges, and sea fans (Ref. 125611).
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
Allen, G.R. and M.G. Allen, 2021. Two new species of Chromis (Teleostei: Pomacentridae) from northwestern Australia and the southwestern Pacific Ocean, previously part of C. fumea (Tanaka, 1917). J. Ocean Sci. Found. 38:78-103. (Ref. 125611)
IUCN 瀕危狀態 (Ref. 130435: Version 2025-1)
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Estimates based on models
Phylogenetic diversity index (參考文獻
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01259 (0.00571 - 0.02773), 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 (參考文獻
69278): 3.0 ±0.1 se; based on size and trophs of closest relatives
回復力 (參考文獻
120179): 高度, 族群倍增時間少於 15個月 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
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