分类 / Names
俗名 | 同种异名 | Catalog of Fishes(属, 种) | 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) (Damselfishes) > Chrominae
Etymology: Azurina: Latin, azurinus = blue, pale blue; the name of Leuciscus caeruleus, blue Roach; 1600 (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
生态学
海洋 礁区鱼类; 非迁移的; 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 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 15.0 cm SL 雄鱼/尚未辨别雌雄; (Ref. 28023)
简单描述
检索表 | 型态特徵 | 形态测量图
背棘 (总数) : 13; 背的软条 (总数) : 10 - 11; 臀棘: 2; 臀鳍软条: 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).
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).
栖息于近海岩礁, 常见于在海峭壁附近的开放水域中。 吃浮游生物。 (参考文献 9405)
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔鱼
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)
世界自然保护联盟红皮书 (Ref. 130435)
极度濒危 (CR) (C2a(ii)); Date assessed: 16 September 2022
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Estimates based on models
Preferred temperature (Ref.
123201): 23.7 - 24.5, mean 23.9 °C (based on 9 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01259 (0.00579 - 0.02736), b=3.03 (2.84 - 3.22), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
营养阶层 (Ref.
69278): 3.4 ±0.45 se; based on food items.
回复力 (Ref.
120179): 中等的, 族群倍增时间最少 1.4 - 4.4年 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
