分類 / 名前
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Ovalentaria/misc (Various families in series Ovalentaria) >
Pomacentridae (Damselfishes) > Pomacentrinae
Etymology: Pomacentrus: Greek, poma, -atos = cover, operculum + Greek, kentron = sting (Ref. 45335); rodriguesensis: This species is named Pomacentrus rodriguesensis with reference to the type locality. It is probably restricted to this location as collections from other Mascarene Islands have failed to yield specimens.
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 9 - 18 m (Ref. 52297). Tropical
Western Indian Ocean: known only from Rodrigues Island.
サイズ / 重さ / 年齢
成熟: Lm ?  range ? - ? cm
Max length : 8.0 cm SL オス/雌雄の選別がない; (Ref. 52297)
簡単な記述
検索表 | 形態学 | 形態計測学
背面の脊椎 (合計) : 14; 背鰭 (合計) : 13 - 14; 肛門の骨: 2; 臀鰭: 15 - 16. Diagnosis: Dorsal rays usually XIV, 13 or 14 (one specimen with XIII, 14); anal rays usually II, 15 (one specimen with II, 12 and another with II, 16); pectoral rays usually 18 (rarely 17 or 19); tubed lateral line scales 17 or 18; gill rakers 7-8 + 12-14 (total 19-21); body depth 1.9-2.0 in SL; in life, color overall brown with darker scale margins and yellowish hue ventrally between pectoral and pelvic fin bases; dorsal fin brown with broad yellow margin; anal and caudal fins brown; pelvic fins yellow with dark brown filamentous tips; iris golden yellow.
Body shape (shape guide): short and / or deep; Cross section: compressed.
Pomacentrus rodriguesensis is currently known only from Rodrigues. It is relatively common in the lagoon at depths between 9-18 m on reefs that contain mainly Acropora corals that are affected by silt deposition. Their territorial behaviour suggests that, although they may not dramatically modify the benthic reef environment, they may promote the biomass of their preferred food algae. Life history characteristics for the family specify that this group is oviparous, with distinct pairing during breeding (Ref. 205). Eggs are demersal and adhere to the substrate (Ref. 205). Males guard and aerate the eggs (Ref. 205).
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).
Allen, G.R. and J.E. Wright, 2003. Description of a new species of damselfish (Pomacentridae: Pomacentrus) from Rodrigues Island, Indian Ocean. aqua, J. Ichthyol. Aquat. Biol. 7(4):133-138. (Ref. 52297)
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
特記事項
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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=0.02455 (0.01176 - 0.05122), b=2.98 (2.81 - 3.15), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245). |
栄養段階 (参照 69278) |
2.7 ±0.3 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 (22 of 100). 🛈 |