Classification / Names
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Blenniiformes (Blennies) >
Tripterygiidae (Triplefin blennies) > Tripterygiinae
Etymology: Helcogramma: Greek, helkos, -eos, -ous = ulcer, sore + Greek, gramma = letter, mark (Ref. 45335); ememes: Named after Margaret Mary Smith (Director of the J. L. B. Smith Institute in the mid-70s) often called MMS. The specific name is used as a noun in apposition.
Environment: milieu / climate zone / depth range / distribution range
Écologie
marin benthopélagique. Tropical
Western Indian Ocean: Kenya to Seyechelles, south to Mozambique.
Taille / Poids / Âge
Maturity: Lm ? range ? - ? cm
Max length : 3.9 cm SL mâle / non sexé; (Ref. 75031)
Description synthétique
Clés d'identification | Morphologie | Morphométrie
Épines dorsales (Total) : 16 - 17; Rayons mous dorsaux (Total) : 10 - 11; Épines anales: 1; Rayons mous anaux: 18 - 20; Vertèbres: 34 - 37. Diagnosis: Dorsal fin III + XIII+ 10, second fin twice height of first; anal fin I + 18-19; pectoral rays 15 (East Africa: 1+7+7, Seychelles: 2+7+6 or 1+8+6); pelvic fin I, 2, spine short and hidden, segmented rays simple, partially united by membrane. Vertebrae 10 + 24-27. LL total lateral scales 36-38; tubed 19-23 (21) scales; transverse 9/7; nape, and dorsal and anal-fin base scaleless, caudal fin base with 2 rows of scales. Mandibular pores 4-7+3+4-7. Orbital cirrus small, pointed. Head length 3.9 (Seychelles) or 3.0 (East Africa) in SL; eye 3.0; maxilla 2.4 in HL. Significant morphological character variation between Seychelles and East Africa specimens, in addition to mentioned above they also differ in mean head length. Live males brown with three narrow white saddle marks on body and with lower half of head black (Ref. 75031).
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).
Life cycle and mating behavior
Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
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)
Statut dans la liste rouge de l'IUCN (Ref. 130435: Version 2024-1)
Utilisations par l'homme
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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=0.00617 (0.00288 - 0.01322), b=3.04 (2.86 - 3.22), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Niveau trophique (Ref.
69278): 3.1 ±0.3 se; based on size and trophs of closest relatives
Résilience (Ref.
120179): Haut, temps minimum de doublement de population inférieur à 15 mois (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
