分類 / 名稱
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) > Chrominae
Etymology: Azurina: Latin, azurinus = blue, pale blue; the name of Leuciscus caeruleus, blue Roach; 1600 (Ref. 45335).
環境： 環境 / 氣候帶 / 深度上下限 / 配送範圍
生態學
海洋 礁區魚類; 非遷移的; 深度上下限 5 - 30 m (Ref. 28023). 熱帶; 1°N - 1°S
Eastern Central Pacific: Cocos and the Galapagos Islands. This species has not been seen since the 1982/83 El Niño event (Ref. 27438).
東太平洋: 中太平洋東部 (參考文獻 9334) 與加拉巴哥群島。 這種沒有在自從 1982/83 聖嬰現象事件以後被見到。 (參考文獻 27438)
大小 / 重量 / 年齡
成熟度: Lm ? range ? - ? cm
Max length : 15.0 cm SL 雄魚/尚未辨別雌雄; (Ref. 28023)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
背棘 (總數) : 13; 背的軟條 (總數) : 10 - 11; 臀棘: 2; 臀鰭軟條: 11 - 12. Color olive-gray with a light-blue tint, silver on the ventral side; snout dusky, a black spot at pectoral fin base; pale gray pelvic and anal fins, dusky dorsal fin. Body more slender compared to other Galápagos damselfish. Preorbital bone smooth without a notchlike projection; edge of preopercle irregular, weakly serrate. Lateral line complete and conspicuous (Ref. 28023).
Body shape (shape guide): fusiform / normal; Cross section: oval.
Apparently this species prefers open water near drop-offs, although individuals are found in a variety of inshore habitats to depths of 30 meters. It is not a common species and resident aggregations have strong preferences for specific sites. Feeds mainly on plankton in the water column, usually in heterotypic aggregations with Chromis atrilobata. 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). Prior to the 1982-83 El Niño, a small aggregation frequented the shallow water just west of Pinnacle Rock at Bartolomé. But despite intensive observations during the decade after this event, no records of this species were made (Ref. 28023).
棲息於近海岩礁, 常見於在海峭壁附近的開放水域中。 吃浮游生物。 (參考文獻 9405)
生命週期和交配行為
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 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).東太平洋: 中太平洋東部 (參考文獻 9334) 與加拉巴哥群島。 這種沒有在自從 1982/83 聖嬰現象事件以後被見到。 (參考文獻 27438)
Grove, J.S. and R.J. Lavenberg, 1997. The fishes of the Galápagos Islands. Stanford University Press, Stanford, 863 p. (Ref. 28023)
IUCN 瀕危狀態 (Ref. 130435: Version 2025-2 (Global))
極危 (CR) (C2a(ii)); Date assessed: 16 September 2022
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基於模型的估計
首選溫度 (參考文獻
123201): 23.7 - 24.5, mean 23.9 °C (based on 9 cells).
系統發育多樣性指數 (參考文獻
82804): PD
50 = 0.5010 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01259 (0.00569 - 0.02786), b=3.03 (2.84 - 3.22), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
營養階層 (參考文獻
69278): 3.4 ±0.45 se; based on food items.
回復力 (參考文獻
120179): 中等的, 族群倍增時間最少 1.4 - 4.4年 (Preliminary K or Fecundity.).
釣魚的脆弱性 (Ref.
59153): Low vulnerability (10 of 100).
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