分類 / 名前
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Ovalentaria/misc (Various families in series Ovalentaria) >
Pomacentridae (Damselfishes) > Microspathodontinae
Etymology: Plectroglyphidodon: Greek,plektron = anything to strike with, spur + Greek, glyphis = carved + Greek, odous = teeth (Ref. 45335); sagmarius: Named for its broad black saddle-like bar on the caudal peduncle.
More on authors: Randall & Earle.
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 0 - 18 m (Ref. 33558). Tropical
Eastern Central Pacific: Marquesas Islands.
サイズ / 重さ / 年齢
成熟: Lm ?  range ? - ? cm
Max length : 4.6 cm SL オス/雌雄の選別がない; (Ref. 33558)
背面の脊椎 (合計) : 7; 背鰭 (合計) : 14 - 15; 肛門の骨: 2; 臀鰭: 11 - 12; 脊つい: 26. Color of adults white with a broad brown bar on the head; 3 brownish yellow bars on the body; a large black saddle on the caudal peduncle (lacking in juveniles); and orange-yellow spinous portion on dorsal fin. Young with a large elliptical black spot basally and below posterior half of the soft part of dorsal fin, extending onto anterior part of the caudal peduncle, followed by a bright white spot. Moderately-deep body, 2.1-2.35 in SL. Tubed lateral line scales, 19-21, but usually 20 (Ref. 33558).
Body shape (shape guide): fusiform / normal; Cross section: compressed.
Feeds on benthic algae (Ref. 89972). Oviparous, distinct pairing during breeding (Ref. 205). Eggs are demersal and adhere to the substrate (Ref. 205). Males guard and aerate the eggs (Ref. 205). Diurnal species (Ref. 54980).
ライフサイクルと交尾行動
成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
Oviparous, distinct pairing during breeding (Ref. 205). Eggs are demersal and adhere to the substrate (Ref. 205). Males guard and aerate the eggs (Ref. 205).
Randall, J.E. and J.L. Earle, 1999. Abudefduf conformis and Plectroglyphidodon sagmarius, two new damselfishes (Pomacentridae) from the Marquesas Islands. Cybium 23(4):333-343. (Ref. 33558)
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) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.01259 (0.00497 - 0.03190), b=3.04 (2.82 - 3.26), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
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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 (12 of 100). 🛈 |