Ambiente: milieu / zona climatica / distribuzione batimetrica / gamma di distribuzione
Ecologia
marino associati a barriera corallina. Tropical
Oceania: known only from the Hawaiian Islands.
Dimensione / Peso / Età
Maturità: Lm ?  range ? - ? cm
Max length : 19.3 cm SL maschio/sesso non determinato; (Ref. 3921); 14.1 cm SL (female)
Breve descrizione
Chiavi di identificazione | Morfologia | Morfometria
Spine dorsali (totale) : 12 - 14; Raggi dorsali molli (totale) : 20 - 23; Spine anali: 2; Raggi anali molli: 21 - 23. Dorsal fin XII-XIV, 20-23 (usually XIII), membrane between spinous- and segmented-ray portions notched more than half length of first segmented ray; membrane from posteriormost ray attaching to point ranging from dorsal edge of caudal peduncle to point out on dorsal edge of caudal fin; anal fin II, 21 to 23; pectoral-fin rays 13 to 15; vertebrae 10 or 11+28 to 30; nape cirrus absent; orbital cirrus slender, stalk-like, tapering distally, usually simple, occasionally with tiny branches at tip, longer than eye diameter (up to 2.5x diameter) in males >5 cm SL, varying from slightly less to slightly greater in length than eye diameter in females >5 cm SL; nasal cirri short, usually simple flap in specimens under 5 cm SL, highly variable in larger specimens, ranging from simple flap to irregularly palmate or pinnate, rarely with as many as 10 distinct tips. Continuous lateral line canal anterodorsally with simple, nonvertically paired pores, extending posteriorly to point between verticals from 7th and 10th (usually between 8th and 9th) dorsal-fin spines, then descending to midside and continuing posteriorly up to little more than half distance to caudal-fin base as series of 2 to 15 (usually 4 to 13) short, disconnected, horizontally bi-pored canals (tubes) in skin (posteriormost tube lying between verticals from 10th dorsal-fin spine and 1lth segmented ray); mandibular pores 4 to 6; posterior dentary canines absent; ventral margin of upper lip generally entire, often with crenulae-like pads on inner (buccal) surface; margin sometimes finely crenulate laterally; dorsal margin of lower lip crenulate, crenulae sometimes restricted to lateral margins, often absent in specimens <3.5 cm SL; males and females with fleshy, blade-like crest dorsally on head; most specimens over about 6 cm SL generally dark overall with few distinctive markings. Male max. size 15 cm SL; female max. size 14.1 cm SL.
Body shape (shape guide): elongated; Cross section: oval.
Facultative air-breathing (Ref. 126274); Adults occur along exposed rocky shores from the highest tide pools to the surf zone. Exposed to great fluctuations in temperature, salinity, oxygen content and pH (Ref. 205). Benthic (Ref. 58302). Very agile with remarkable leaping ability, moving rapidly in a series of jumps from pool to pool. Feed on detritus and benthic algae (Ref. 3921). Oviparous. Eggs are demersal and adhesive (Ref. 205), and are attached to the substrate via a filamentous, adhesive pad or pedestal (Ref. 94114). Larvae are planktonic, often found in shallow, coastal waters (Ref. 94114). With Ophioblennius stage (Ref. 9962).
Ciclo vitale e comportamento di accoppiamento
Maturità | Riproduzione | Deposizione | Uova | Fecondità | Larve
Oviparous, distinct pairing (Ref. 205).
Springer, V.G. and J.T. Williams, 1994. The Indo-West Pacific blenniid fish genus Istiblennius reappraised: a revision of Istiblennius, Blenniella, and Paralticus, new genus. Smithson. Contrib. Zool. 565:1-193. (Ref. 9962)
Stato della Lista Rossa IUCN (Ref. 130435: Version 2025-2 (Global))
Minaccia per l'uomo
Harmless
Usi umani
Pesca: di nessun interesse; Acquario: Commerciale
Strumenti
Rapporti speciali
Scarica XML
Fonti Internet
Stime basate su modelli
Indice di diversità filogenetica (Fonte Biblio.
82804): PD
50 = 0.5001 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00776 (0.00354 - 0.01702), b=3.00 (2.81 - 3.19), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Livello trofico (Fonte Biblio.
69278): 2.0 ±0.00 se; based on food items.
Resilienza (Fonte Biblio.
120179): Medio, tempo minimo di raddoppiamento della popolazione 1.4 - 4.4 anni (Assuming tm=1; Fec < 1000).
Vulnerabilità della pesca (Ref.
59153): Low vulnerability (14 of 100).
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