分類 / Names
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Ovalentaria/misc (Various families in series Ovalentaria) >
Pomacentridae (Damselfishes) > Chrominae
Etymology: Chromis: Greek, chromis = a fish, perhaps a perch (Ref. 45335); norfolkensis: Named for its type locality, Norfolk Island in the southwestern Pacific Ocean.
Environment: milieu / climate zone / 深さの範囲 / distribution range
生態学
海 関連する礁; 深さの範囲 5 - 40 m (Ref. 125611). Subtropical
Southwest Pacific: northern Tasman Sea and southern Coral Sea region at northern New Zealand, Norfolk Island, New Caledonia, and the Chesterfield Islands; including New South Wales, Australia.
サイズ / 重さ / 年齢
成熟: Lm ? range ? - ? cm
Max length : 8.3 cm SL オス/雌雄の選別がない; (Ref. 125611)
簡単な記述
検索表 | 形態学 | 形態計測学
背面の脊椎 (合計) : 13 - 14; 背鰭 (合計) : 12 - 13; 肛門の骨: 2; 臀鰭: 10 - 11; 脊つい: 26. This species is distinguished by the following set of characters: D XII I- XIV,12-13 (usually XIII,12); A II,10-11 (usually II,10); pectoral-fin rays 18-20 (usually 19); spiniform caudal-fin rays 2; tubed lateral-line scales 17-19; total gill rakers on first branchial arch 30-34 (usually 31-33); body depth 2.0-2.4 (mean 2.2) in SL. Colouration: adult color in life bicolored, light to dark brown to yellowish on upper half and white on lower half, transition between two halves more or less abrupt with slightly diagonal emarcation extending from lower rear corner of eye to conspicuous small, rounded, white spot, half pupil size or less, at base of last dorsal-fin rays; caudal fin is translucent whitish to bluish with broad black bands along upper and lower margins with a narrow blue-white edge (Ref. 125611).
Cross section: compressed.
Usually found on outer reef slopes around boulders or occasionally on coral patch reefs (Ref. 125611).
Life cycle and mating behavior
成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
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のレッドリストの状況は (Ref. 130435: Version 2025-1)
Human uses
用具
特記事項
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インターネットの情報源
Estimates based on models
Phylogenetic diversity index (参照
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01549 (0.00930 - 0.02579), b=3.12 (2.97 - 3.27), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
栄養段階 (参照
69278): 3.0 ±0.1 se; based on size and trophs of closest relatives
回復力 (参照
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).
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