Helcogramma albimacula, Whitespot triplefin

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Helcogramma albimacula Williams & Howe, 2003

Whitespot triplefin
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Helcogramma albimacula   AquaMaps   Data sources: GBIF OBIS
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条鰭類 > Perciformes (Perch-likes) > Tripterygiidae (Triplefin blennies) > Tripterygiinae
Etymology: Helcogramma: Greek, helkos, -eos, -ous = ulcer, sore + Greek, gramma = letter, mark (Ref. 45335);  albimacula: The species epithet is a combination of the Latin "albus", meaning white, and "macula", meaning spot. The name refers to the pale spot on the ventral part of the pectoral fin base of preserved specimens and is treated as Noun in apposition.

Environment: milieu / climate zone / depth range / distribution range 生態学

; 海 底生の漂泳性; 深さの範囲 0 - 5 m (Ref. 52308).   Tropical

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Western Pacific.

サイズ / 重さ / 年齢

Maturity: Lm ?  range ? - ? cm
Max length : 4.2 cm TL オス/雌雄の選別がない; (Ref. 90102)

簡単な記述 形態学 | 形態計測学

背面の脊椎 (合計): 16 - 18; 背鰭 (合計): 112; 肛門の骨 1; 臀鰭: 20 - 22; 脊つい: 37. A species of Helcogramma (sensu Hansen, 1986) with 2 symphysial mandibular sensory pores, second dorsal fin spines usually XIV (two of 80 specimens with XIII and 11 with XV), third dorsal fin segmented rays 10-11, last ribs on vertebral centrum 10, vertebrae modally 10+27=37, pored lateral line scales modally 19 or 20, nape scales present, males with dusky anal fin, both sexes with distinctive pale (red in life), oblong streak over lowest pectoral fin ray bases, adult males first dorsal elongate, reaching base of fourth to sixth spine of second dorsal fin when depressed (Ref. 52308).

生物学     用語集 (例 epibenthic)

Adults are found at depths of 5 m and shallower, in surge channels and exposed boulders (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 成熟 | 繁殖 | 放精 | | 生産力 | 幼生

主な参考文献 Upload your references | 参考文献 | コーディネーター : Fricke, Ronald | 協力者

Williams, J.T. and J.C. Howe, 2003. Seven new species of the triplefin fish genus Helcogramma (Tripterygiidae) from the Indo-Pacific. J. Ichthyol. Aqua. Biol. 7(4):151-176. (Ref. 52308)

IUCNのレッドリストの状況は (Ref. 120744)

  軽度懸念 (LC) ; Date assessed: 03 May 2010

CITES (Ref. 118484)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

人間に対する脅威

  Harmless





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Estimates based on models

Preferred temperature (Ref. 115969): 28 - 29.3, mean 28.8 (based on 659 cells).
Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00550 (0.00248 - 0.01216), b=3.08 (2.89 - 3.27), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
栄養段階 (Ref. 69278):  3.0   ±0.3 se; Based on size and trophs of closest relatives
回復力 (Ref. 120179):  高い, 15か月以下の倍増期間の最小個体群 (Preliminary K or Fecundity.).
弱み (Ref. 59153):  Low vulnerability (10 of 100) .