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).
Environment: milieu / climate zone / depth range / distribution range
Οικολογία
Θαλασσινό(ά) βενθοπελαγικό. Tropical; 11°S - 26°S, 32°E - 50°E (Ref. 75031)
Western Indian Ocean: Mozambique to Comoros.
Μέγεθος / Βάρος / Age
Maturity: Lm ? range ? - ? cm
Max length : 3.1 cm SL αρσενικό/απροσδιόριστο; (Ref. 75031)
Short description
Κλείδες προσδιορισμού | Μορφολογία | Μορφομετρία
Ραχιαίες άκανθες (συνολικά) : 16; Μαλακές ραχιαίες ακτίνες (συνολικά) : 10 - 11; Εδρικές άκανθες: 1; Μαλακές εδρικές ακτίνες: 18 - 20; Σπόνδυλοι: 34 - 36. Diagnosis: Dorsal fin III + XIII+ 10-11, first fin tall; anal fin I + 18-20; pectoral rays 15 (3+6+6); pelvic fin I, 2, spine short and hidden, segmented rays simple, partially united by membrane. Vertebrae 11 + 23-25. LL total lateral scales 37-38; tubed 24-30, ends below 3rd dorsal fin; transverse 9/7; nape, belly, and anterior of 1st dorsal fin base scaleless, caudal-fin base with 2-3 rows of scales. Mandibular pores 4+1+4. Lower labial folds narrow; upper lip inner margin crenulated. Orbital cirrus simple and pointed. Head length 3.4 in SL; eye 2.9, maxilla 2.2 in HL. Overall dark pink, with 3 orange spots at 2nd dorsal-fin base, and pink spots along midline and anal-fin base. Males masked black below eye. Females unmasked head; caudal peduncle with dark bar (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
Maturities | Αναπαραγωγή | Spawnings | Egg(s) | Fecundities | Προνύμφες
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)
IUCN Red List Status (Ref. 130435)
Human uses
Εργαλεία
Special reports
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Διαδικτυακές πηγές
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=0.00562 (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).
Τροφικό Επίπεδο (Ref.
69278): 3.0 ±0.3 se; based on size and trophs of closest relatives
Ελαστικότητα (Ref.
120179): Υψηλό, ελάχιστος χρόνος για διπλασιασμό πληθυσμού < 15 μήνες (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
