Actinopterygii (ray-finned fishes) > Perciformes
(Perch-likes) > Tripterygiidae
(Triplefin blennies) > Tripterygiinae
Etymology: Helcogramma: Greek, helkos, -eos, -ous = ulcer, sore + Greek, gramma = letter, mark (Ref. 45335). More on author: Randall.
Environment: milieu / climate zone / depth range / distribution range
Marine; demersal; depth range 0 - 5 m (Ref. 27223). Tropical
Western Pacific: described from Gunung Api and Manuk in the Banda Sea, Indonesia.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 3.8 cm SL male/unsexed; (Ref. 8927)
Morphology | Morphometrics
Adults are found among exposed boulders of rocky coasts in two volcanic islets in Banda Sea (Ref. 8927, 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
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Randall, J.E. and E. Clark, 1993. Helcogramma vulcana, a new triplefin fish (Blennioidei: Tripterygiidae) from the Banda Sea, Indonesia. Rev. Fr. Aquariol. 20(1):27-32. (Ref. 8927)
IUCN Red List Status (Ref. 115185)
CITES (Ref. 115941)
Threat to humans
Fisheries: of no interest
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Preferred temperature (Ref. 115969
): 28.1 - 29.3, mean 28.8 (based on 624 cells).
Phylogenetic diversity index (Ref. 82805
= 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
Trophic Level (Ref. 69278
): 3.1 ±0.3 se; Based on size and trophs of closest relatives
Resilience (Ref. 69278
): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Low vulnerability (10 of 100) .