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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.
環境：環境 / 気候帯 / 深さの範囲 / 分布範囲
生態学
海 関連する礁; 深さの範囲 10 - 40 m (Ref. 118302). Tropical
Western Indian Ocean: restricted to the islands of Mauritius and Réunion.
サイズ / 重さ / 年齢
成熟: Lm ? range ? - ? cm
Max length : 9.2 cm SL オス/雌雄の選別がない; (Ref. 118302); 8.7 cm SL (female)
簡単な記述
検索表 | 形態学 | 形態計測学
背面の脊椎 (合計) : 8; 背鰭 (合計) : 11; 肛門の骨: 2; 臀鰭: 11; 脊つい: 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).
Cross section: compressed.
Usually found in habitats consisting of outer, seaward reefs at depths of about 10-40 m (Ref. 118302).
ライフサイクルと交尾行動
成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
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のレッドリストの状況は (Ref. 130435: Version 2025-2 (Global))
人間の用途
用具
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インターネットの情報源
モデルに基づく推定値
系統多様性指数 (参照
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01778 (0.00800 - 0.03953), b=3.00 (2.82 - 3.18), in cm total length, based on LWR estimates for this Genus-body shape (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.).
漁業の脆弱性 (Ref.
59153): Low vulnerability (10 of 100).
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