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) > Chrominae
Etymology: Chromis: Greek, chromis = a fish, perhaps a perch (Ref. 45335); abyssus: Name from Latin form of the Greek noun 'abyssos' meaning abyss, for the documentary film Pacific Abyss, produced by the British Broadcasting Corporation (BBC), which funded the expedition on which the type specimens were collected..
Environment: milieu / climate zone / depth range / distribution range
生態學
海洋 礁區魚類; 深度上下限 107 - 150 m (Ref. 90102). 熱帶
Western Pacific: Palau.
西太平洋: 帛琉。
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 9.8 cm SL 雄魚/尚未辨別雌雄; (Ref. 59379)
背棘 (總數) : 14; 背的軟條 (總數) : 12 - 13; 臀棘: 2; 臀鰭軟條: 12 - 14. This species is distinguished by the following characters: Dorsal rays XIV,12-13, usually 13; anal rays II,12-14, usually 13; pectoral rays 18-19, usually 19; spiniform caudal rays 3; tubed lateral-line scales 14-16; gill rakers 6-7 + 17-18, usually 7 + 18, total 24-25, usually 25; body depth 1.58-1.83 in SL; the color when fresh is dark gray with a large iridescent dark blue spot at center of each scale; membranes on median fins and pelvic fins opaque charcoal gray, with an iridescent dark blue margin on the spinous part of the dorsal and anal fins; caudal fin mottled iridescent dark blue and black; pectoral fins with a black ovoid spot covering the basal portion and pectoral-fin axis (Ref. 59379).
這種被藉著下列的特徵區別: 背鰭鰭條 XIV, 12-13, 通常 13; 臀鰭鰭條 2, 12-14, 通常 13; 胸鰭鰭條 18-19, 通常 19; spiniform 尾部的鰭條 3; 管狀的側線鱗片 14-16; 鰓耙 6-7+17-18, 通常 7+18,總計 24-25, 通常 25; 體高 1.58-1.83 分之一標準體長; 顏色新鮮時顏色較深在每個鱗片的中心灰色的有一個大的彩虹色的深藍色斑點; 在中央的鰭與腹鰭不透明的深灰色灰色上的薄膜, 在背鰭與臀鰭的硬棘的部分上有一個彩虹色的深藍色邊緣; 尾鰭有斑點的彩虹色的深藍色與黑色; 胸鰭有包含的基部部分與胸鰭軸的一個黑色的卵形斑點。 (參考文獻 59379)
Adults appear to prefer depths more that 115 m, staying close to the substratum, sand and rubble slope with boulders and rock outcroppings. They take refuge in small caves and holes. Juveniles and some subadults were observed around limestone talus. Adults were usually solitary or in pairs, while subadults and juveniles were seen in small groups. 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). Other Chromis associated with this species include C. brevirostris, C. degruyi and C. earina (Ref. 59379).
這種似乎偏愛深度更多那 115 公尺, 停留接近下層土壤，沙子與碎石斜坡有大圓石與岩石露出的部分。 它在小的洞穴和孔洞中躲藏。 稚魚與一些亞成魚石灰石碎石堆的周圍被觀察。 成魚是通常獨居性的，否則成對，然而亞成魚與稚魚被在小群魚群中見到。 伴隨著這種的其他 Chromis 包括 C. brevirostris ， C. degruyi 與 C. earina 。 (參考文獻 59379)
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).西太平洋: 帛琉。
Pyle, R., J.L. Earle and B.D. Greene, 2008. Five new species of the damselfish genus Chromis (Perciformes: Labroidei: Pomacentridae) from deep coral reefs in the tropical western Pacific. Zootaxa 1671:3-31. (Ref. 59379)
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Estimates based on models
Preferred temperature (Ref.
123201): 9 - 26.8, mean 15.9 °C (based on 47 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01778 (0.00796 - 0.03971), b=2.99 (2.81 - 3.17), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
營養階層 (Ref.
69278): 3.0 ±0.1 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).
