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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 / depth range / distribution range
экология
морской ассоциированный с рифами; пределы глубины 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.
Size / Вес / Возраст
Maturity: Lm ? range ? - ? cm
Max length : 8.3 cm SL самец/пол неопределен; (Ref. 125611)
Краткое описание
определительные ключи | морфология | морфометрия
колючие лучи спинного плавника (общее число) : 13 - 14; членистые (мягкие) лучи спинного плавника (общее число) : 12 - 13; колючие лучи анального плавника: 2; членистые (мягкие) лучи анального плавника: 10 - 11; позвонки: 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).
Usually found on outer reef slopes around boulders or occasionally on coral patch reefs (Ref. 125611).
Life cycle and mating behavior
Maturities | размножение | Spawnings | Egg(s) | Fecundities | личинки
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.Foundation 38:78-103. (Ref. 125611)
Статус Красного Списка МСОП (Ref. 130435)
Угроза для людей
Harmless
Использование человеком
дополнительная информация
инструменты
Специальные отчеты
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = No PD50 data [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01549 (0.00913 - 0.02626), b=3.13 (2.98 - 3.28), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
Trophic level (Ref.
69278): 3.0 ±0.1 se; based on size and trophs of closest relatives
устойчивость к внешним воздействиям (Ref.
120179): высокий, минимальное время удвоения популяции до 15 месяцев (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
