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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); torquata: Name from Latin: 'torquata' meaning adorned with a collar, referring to the diagnostic dark band behind the head.
Environment: milieu / climate zone / depth range / distribution range
البيئة
بحري مرتبطة بالشعاب; نطاق العمق 10 - 40 m (Ref. 118302). Tropical
Western Indian Ocean: restricted to the islands of Mauritius and Réunion.
الحجم / وزن / العمر
Maturity: Lm ? range ? - ? cm
Max length : 9.2 cm SL ذكر/ مختلط الجنس; (Ref. 118302); 8.7 cm SL (female)
وصف مختصر
مفاتيح التعريف | الوصف الخارجي | قياسات المظهر الخارجي
الأشواك الظهرية (المجموع) : 8; الأشعة الظهرية الناعمة (المجموع) : 11; شوكة شرجية: 2; أشعه شرجية لينه: 11; فقرات: 26. This species is distinguished be the following characters: D XIII,11; A II,10-11 (usually 11); pectoral rays 19-20 (usually 19); spiniform caudal rays 3; tubed lateral-line scales (17-19); gill rakers 7-8 + 20-22, total rakers 28-30; body depth 2.3-2.4 in SL. Colouration: when alive, mainly charcoal grey to dark greenish brown, whitish to yellowish anteriorly (behind pectoral fin) and ventrally; a broad black band behind head (or slightly overlapping opercle), from side of nape to just behind pectoral-fin base; cheek, opercle, and side of snout mainly white (except in yellow individuals), except black patch around upper margin of eye; iris yellow-orange; caudal fin mainly brown with darker band along dorsal and ventral edge of lobes; juvenile is bluish with prominent black band behind the head and bright yellow caudal lobes with yellow on upper lobe extending onto dorsal portion of caudal peduncle (Ref. 118302).
Usually found in habitats consisting of outer, seaward reefs at depths of about 10-40 m (Ref. 118302).
Life cycle and mating behavior
النضج | التكاثر | وضع البيض | بيض | الخصوبة | Larvae
Allen, G.R., 2018. Chromis torquata, a new species of damselfish (Pomacentridae) from Mauritius and Réunion. aqua, Int. J. Ichthyol. 24(1):15-22. (Ref. 118302)
IUCN Red List Status (Ref. 130435: Version 2024-2)
استخدامات بشرية
أدوات
تقارير خاصة
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مصادر علي الأنترنت
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=0.01820 (0.00804 - 0.04119), b=2.99 (2.81 - 3.17), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
مستوى غذائي (Ref.
69278): 3.0 ±0.1 se; based on size and trophs of closest relatives
المرونه (Ref.
120179): عالي, الحد الزمني الأدني لتضاعف عدد أفراد المجتمع أقل من 15 شهر (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
