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Teleostei >
Blenniiformes (Blennies) >
Tripterygiidae (Triplefin blennies) > Tripterygiinae
Etymology: Enneapterygius: Greek, ennea = nine times + Greek, pterygion = little fin (Ref. 45335); nigricauda: Specific name refers to the black caudal fin of the males..
More on author: Fricke.
Environment: milieu / climate zone / depth range / distribution range
生态学
海洋 居于水底的; 深度上下限 0 - 11 m (Ref. 27223). 熱帶
Western Central Pacific: Taiwan, Philippines, Vanuatu, Tonga, American Samoa, Society Islands, Kiribati, Jarvis Island, Howland Island, Wake Island, Marshall Islands, Micronesia, Guam, and Boni Islands (Japan).
中西太平洋: 台灣，菲律賓，萬那度，東加，美屬薩摩亞群島，社會群島，吉爾巴斯，賈維斯島，豪蘭群島，維克島，馬紹爾群島，密克羅尼西亞，關島與 Boni 島 (日本).
大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 2.9 cm SL 雄鱼/尚未辨别雌雄; (Ref. 27223)
背棘 (总数) : 14 - 17; 背的软条 (总数) : 7 - 10; 臀棘: 1; 臀鳍软条: 16 - 19. Male red with darker red, double red bars , black "mask" covering front and lower two-thirds of head, chest, and pectoral-fin base, narrow white bar at caudal-fin base, and basal two-thirds to three-fourths of caudal-fin black. Female translucent greenish grey with indistinct reddish blotches along back, middle of sides, and just above anal-fin base. Head, chest, and pectoral-fin base scaleless; short orbital tentacle present; mandibular pores 3-4 + 1 + 3-4. Maximum size to 3.5 cm TL (Ref. 90102).
Adults are found on seaward and lagoon reefs, usually less than 5 m (Ref. 90102). Eggs are hemispherical and covered with numerous sticky threads that anchor them in the algae on the nesting sites (Ref. 240). Larvae are planktonic which occur primarily in shallow, nearshore waters (Ref. 94114). Minimum depth from Ref. 58018.
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔鱼
中西太平洋: 台灣，菲律賓，萬那度，東加，美屬薩摩亞群島，社會群島，吉爾巴斯，賈維斯島，豪蘭群島，維克島，馬紹爾群島，密克羅尼西亞，關島與 Boni 島 (日本).
Fricke, R., 1997. Tripterygiid fishes of the western and central Pacific, with descriptions of 15 new species, including an annotated checklist of world Tripterygiidae (Teleostei). Theses Zool. 29:1-607. (Ref. 27223)
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Estimates based on models
Preferred temperature (Ref.
123201): 24.6 - 29.3, mean 28.3 °C (based on 1661 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00562 (0.00258 - 0.01228), b=3.08 (2.89 - 3.27), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
营养阶层 (Ref.
69278): 3.1 ±0.3 se; based on size and trophs of closest relatives
回复力 (Ref.
120179): 高度, 族群倍增时间少于 15个月 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
