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> Blenniiformes (Blennies) > Tripterygiidae (Triplefin blennies) > Tripterygiinae
Etymology: Helcogramma: Greek, helkos, -eos, -ous = ulcer, sore + Greek, gramma = letter, mark (Ref. 45335); randalli: The species is named in honour of John E. Randall, who collected all the known specimens and provided underwater and fresh photographs of specimens of this and other species..

Environment: milieu / climate zone / depth range / distribution range Ecologia

marinhas bentopelágico; intervalo de profundidade 2 - 12 m (Ref. 90102). Tropical

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Western Pacific: Indonesia.

Tamanho / Peso / Idade

Maturity: L_m ? range ? - ? cm
Max length : 4.7 cm TL macho/indeterminado; (Ref. 90102)

Descrição breve Chaves de identificação | Morfologia | Morfometria

A species of Helcogramma (sensu Hansen, 1986) with 14 symphisial mandibular sensory pore, second dorsal fin spines XIV-XV (one of 11 specimens with XIII), third dorsal fin segmented rays 11-12, last ribs on vertebral centrum 12, vertebrae modally 10+28=38 (value range: 10+27 to 29=37 to 39), pored lateral line scales modally 22 or 23 (value range: 22-25), nape scales present, male with thirs dorsal, caudal and anal fins dark and posterior half of body dark.

Adults are found in rocky boulders of exposed coasts (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).

Life cycle and mating behavior Maturities | Reprodução | Spawnings | Egg(s) | Fecundities | Larvas

Referência principal Upload your references | Referências | Coordenador : Fricke, Ronald | Colaboradores

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

Categoria na Lista Vermelha da IUCN (Ref. 130435)

Preocupação menor (LC) ; Date assessed: 06 May 2010

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Ameaça para o homem

Harmless

Utilização humana

FAO - Publication: search | FishSource |

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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 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).

Nível Trófico (Ref. 69278): 3.1 ±0.3 se; based on size and trophs of closest relatives

Resiliência (Ref. 120179): Elevada, tempo mínimo de duplicação da população menor que 15 meses (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): Low vulnerability (10 of 100).

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Helcogramma randalli Williams & Howe, 2003