分类 / Names
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Teleostei >
Blenniiformes (Blennies) >
Tripterygiidae (Triplefin blennies) > Tripterygiinae
Etymology: Helcogramma: Greek, helkos, -eos, -ous = ulcer, sore + Greek, gramma = letter, mark (Ref. 45335); ascensionis: Named for its type locality, Ascension..
Environment: milieu / climate zone / depth range / distribution range
生态学
海洋 礁区鱼类; 深度上下限 1 - 2 m (Ref. 86997).
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Southeast Atlantic: Ascension.
大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 3.5 cm SL 雄鱼/尚未辨别雌雄; (Ref. 86997)
简单描述
检索表 | 型态特徵 | 形态测量图
背棘 (总数) : 16 - 17; 背的软条 (总数) : 10 - 11; 臀棘: 1; 臀鳍软条: 18 - 20. This species is distinguished by the following characters: A 18-20; scales in the transverse series 12-14 + 1 + 9-10; no scales from head, nape, belly, pectoral base and area immediately adjacent to bases of first dorsal and anal fins; maxilla reaching posteriorly to below pupil; eye diameter 7.4 -8.9% of SL; head length 29.2-32.4% of S.L.; first dorsal spine 7.8-8.7% of S.L.; and its colouration (Ref. 86997).
Inhabits large rockpools (4 m diameter) and among rocks covered in coralline algae at 2 m depth (Ref. 86997).
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔鱼
Lubbock, R., 1980. The shore fishes of Ascension Island. J. Fish Biol. 17(3):283-303. (Ref. 86997)
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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=0.00562 (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): 3.0 ±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).
