分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Ovalentaria/misc (Various families in series Ovalentaria)
鱸形目 (Various families in series Ovalentaria) >
Pomacentridae (Damselfishes)
雀鯛科 (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..
Environment: milieu / climate zone / depth range / distribution range
生態學
海洋 礁區魚類; 深度上下限 9 - 18 m (Ref. 52297). 熱帶
Western Indian Ocean: known only from Rodrigues Island.
西印度洋: 已知只來自 Rodrigues 島了。
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 8.0 cm SL 雄魚/尚未辨別雌雄; (Ref. 52297)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
背棘 (總數) : 14; 背的軟條 (總數) : 13 - 14; 臀棘: 2; 臀鰭軟條: 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.
鑑別: 背鰭鰭條通常 XIV,13 或 14;(一件標本用 XIII,14) 臀鰭鰭條通常 2,15;(一件標本具有 2,12 與另外一具有 2,16) 胸鰭鰭條通常 18;(很少地 17 或 19) 管狀的側線鱗片 17 或 18; 鰓耙 7-8+12-14;(總數 19-21) 體高 1.9-2.0 分之一標準體長; 活著時，顏色全體在胸鰭與腹鰭基底之間腹地褐色的有較深色的鱗片邊緣與淡黃色的色; 背鰭褐色的有寬的黃色邊緣; 臀鰭與尾鰭褐色; 腹鰭黃色的有深褐色的絲狀頂端; 虹膜金黃色的。
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).
Pomacentrus rodriguesensis 現在被已知只來自 Rodrigues 。 它是相當普遍的在潟湖中在深度介於 9- 之間， 18 公尺在主要地包含 Acropora 珊瑚的礁上那是被淤泥沈澱影響。
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔魚
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).西印度洋: 已知只來自 Rodrigues 島了。
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)
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.02399 (0.01139 - 0.05051), b=2.98 (2.81 - 3.15), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
營養階層 (Ref.
69278): 2.7 ±0.3 se; based on size and trophs of closest relatives
回復力 (Ref.
120179): 高度, 族群倍增時間少於 15個月 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
