Helcogramma rharhabe

Helcogramma rharhabe Holleman, 2007

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Native range | All suitable habitat | Point map | Year 2050
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Helcogramma rharhabe   AquaMaps   Data sources: GBIF OBIS
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drawing shows typical species in Tripterygiidae.

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> Blenniiformes (Blennies) > Tripterygiidae (Triplefin blennies) > Tripterygiinae
Etymology: Helcogramma: Greek, helkos, -eos, -ous = ulcer, sore + Greek, gramma = letter, mark (Ref. 45335)rharhabe: Named after Rharhabe a paramount chief from 1775 to 1787. The name is treated as a noun in apposition.
Eponymy: Rharhabe (ca: 1715–c. [...] (Ref. 128868), visit book page.

Milieu: milieu / Klimaatzone / Diepte / verspreidingsgebied Ecologie

marien benthopelagisch; diepte 0 - 3 m (Ref. 75031). Tropical

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Western Indian and Southeast Atlantic: from Mozambique (Bazaruto) to South Africa. Speciimens collected from Shimoni, Kenya may refer to the species but are in poor condition so until additional specimens are available, Bazaruto is considered its most northern limit (Ref. 75031).

Grootte / Gewicht / Leeftijd

Maturiteit: Lm ?  range ? - ? cm
Max length : 3.7 cm SL mannelijk / geslacht onbekend; (Ref. 75031)

Korte beschrijving Determinatiesleutels | Morfologie | Morfometrie

Dorsale stekels (totaal) : 10 - 17; Dorsale zachte stralen (totaal) : 10 - 11; Anale stekels: 1; Anale zachte stralen: 19; Wervels: 34 - 35. Diagnosis: Medium to large species of the genus. Dorsal fin III + XIII+ 10, 2nd fin twice the 1st; anal fin I, 19; pectoral rays 16 (1+8+7); pelvic fin I, 2, spine short and hidden, segmented rays simple, partially united by membrane. Vertebrae 10+24-25. LL total lateral scales 37-38; tubed 21-31 (geographically variant means), ends below junction of 2nd and 3rd dorsal fin; nape, belly, 1st dorsal fin and anterior anal-fin bases scaleless, caudal-fin base with 2 rows of scales. Mandibular pores 5+1+5. Orbital cirrus simple and small. Head length 3.3-3.7 in SL; eye 2.6-3.2, maxilla 2.2-2.6 in HL. Males body with red and black spots evenly scattered, vertical stripes from dorsal fin to midline of side, and silvery spots below midline; head with blue stripe from mouth corner to preopercle, upperlip corner with crimson markings, black in the center (Ref. 75031).
Body shape (shape guide): elongated.

Biologie     Verklarende woordenlijst (bv. epibenthic)

Female members of the Tripterygiidae have eggs that 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).

Levenscyclus en paargedrag Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven

Hoofdreferentie Upload uw referenties | Referenties | Coördinator : Fricke, Ronald | Medewerkers

Holleman, W., 2007. Fishes of the genus Helcogramma (Blennioidei: Tripterygiidae) in the Western Indian Ocean, including Sri Lanka, with description of four new species. Smith. Bull. 7:51-81. (Ref. 75031)

Status op de Rode Lijst van het IUCN (Ref. 130435: Version 2025-2 (Global))

  Niet bedreigd (LC) ; Date assessed: 07 May 2010

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

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Schattingen op basis van modellen

Fylogenetische diversiteitsindex
(Ref. 82804)
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight a=0.00617 (0.00292 - 0.01304), b=3.03 (2.85 - 3.21), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Trofisch niveau
(Ref. 69278)
3.1   ±0.3 se; based on size and trophs of closest relatives
Weerstandsvermogen
(Ref. 120179)
Hoog, minimale populatieverdubbelingstijd minder dan 15 maanden (Preliminary K or Fecundity.).
Kwetsbaarheid van de visserij
(Ref. 59153)
Low vulnerability (10 of 100). 🛈