Environment: milieu / climate zone / depth range / distribution range
Ecologia
marino demersale; distribuzione batimetrica 0 - 1 m (Ref. 90102). Tropical
Western Pacific: Hsiao-liu-chiu Island, off southwestern Taiwan; south to Kur Island, Indonesia.
Size / Peso / Age
Maturity: Lm ? range ? - ? cm
Max length : 7.0 cm SL maschio/sesso non determinato; (Ref. 9962); 5.5 cm SL (female)
Short description
Chiavi di identificazione | Morfologia | Morfometria
Spine dorsali (totale) : 12 - 14; Raggi dorsali molli (totale) : 19 - 21; Spine anali: 2; Raggi anali molli: 21 - 23. Dorsal fin XII-XIV, 19-21; membrane between spinous and segmented-ray portions notched deeper than half length of first segmented ray; membrane from posteriormost ray beginning from between dorsal edge of caudal peduncle at caudal-fin base (rarely) to dorsal edge of caudal fin up to 18% caudal-fin length in specimens ? 3 cm SL; anal fin II, 21-23 (23 only in males); pectoral-fin rays 13-14; vertebrae 10+27 to 30 = 37 to 40 (rarely 40); lacking nape cirrus; orbital cirrus simple, rarely a single branch or a few short, fine filaments at tip, typically shorter than orbital diameter; nasal cirrus simple, relatively long (typically half orbital diameter); lateral line canal continuous anterodorsally with simple pores (no vertical pairs), extending posteriorly to between verticals from bases of 6th and 9th dorsal-fin spines (usually to between verticals from 7th and 8th spines), then continuing posteriorly and posteroventrally as series of 1-6 (rarely 1 or 6) short, disconnected, horizontally bi-pored canals/tubes in skin; posteriormost tube area below and between verticals from bases of 7th spine and second segmented dorsal-fin ray (rarely posterior to vertical from 12th spine); mandibular pores 3-5; lacking posterior canines; ventral margin of upper lip and dorsal margin of lower lip entire; both sexes from ?3 cm SL with well-developed, fleshy, blade-like crest on dorsal part of head; crest of females comparatively smaller than males’; spinous portion of dorsal fin dusky, crossed by several diagonal, paler-dusky stripes with dark margins; segmented ray portion faint dusky with numerous dark pinstripes coursing length of fin, stripes coalescing into reticular pattern posteriorly. Male max. size ca 7 cm SL; female max. size ca 5.5 cm.
Facultative air-breathing (Ref. 126274); Adults occur in tide pools and close to edge of rocky shores at low tide. 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).
Life cycle and mating behavior
Maturities | Riproduzione | Spawnings | Egg(s) | Fecundities | 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)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
Strumenti
Special reports
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Estimates based on models
Preferred temperature (Ref.
123201): 25.4 - 29.3, mean 28.8 °C (based on 783 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5001 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00741 (0.00335 - 0.01640), b=3.02 (2.83 - 3.21), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 2.0 ±0.00 se; based on food items.
Resilienza (Ref.
120179): Alto, tempo minimo di raddoppiamento della popolazione meno di 15 mesi (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
![Image of Istiblennius muelleri (Mueller\](/images/thumbnails/jpg/tn_Ismue_u0.jpg "Image of Istiblennius muelleri (Mueller\")
