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Istiblennius muelleri (Klunzinger, 1879)

Mueller's rockskipper
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Native range | All suitable habitat | Point map | Year 2050
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Istiblennius muelleri   AquaMaps   Data sources: GBIF OBIS
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Image of Istiblennius muelleri (Mueller\
Istiblennius muelleri
Picture by The Fish Database of Taiwan


Australia country information

Common names: [No common name]
Occurrence: native
Salinity: marine
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Museum: Hobson's Bay (probably erroneous; Whitley (1943) remarked that the specimen may have come from Port Darwin since no species of Istiblennius is found so far south as Victoria), SMNS 1519 (Ref. 9962).
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/as.html
National Fisheries Authority: http://www.csiro.au/
Occurrences: Occurrences Point map
Main Ref: Springer, V.G. and J.T. Williams, 1994
National Database:

Common names from other countries

Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa

Teleostei (teleosts) > Blenniiformes (Blennies) > Blenniidae (Combtooth blennies) > Salariinae
Etymology: Istiblennius: Greek, istios = sail + Greek, blennios = mucus (Ref. 45335).
  More on author: Klunzinger.

Environment: milieu / climate zone / depth range / distribution range Ecology

Marine; demersal; depth range 0 - 1 m (Ref. 90102).   Tropical

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Western Pacific: Hsiao-liu-chiu Island, off southwestern Taiwan; south to Kur Island, Indonesia.

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 7.0 cm SL male/unsexed; (Ref. 9962); 5.5 cm SL (female)

Short description Morphology | Morphometrics

Dorsal spines (total): 12 - 14; Dorsal soft rays (total): 19-21; Anal spines: 2; Anal soft rays: 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.

Biology     Glossary (e.g. epibenthic)

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 Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Oviparous, distinct pairing (Ref. 205).

Main reference Upload your references | References | Coordinator : Williams, Jeffrey T. | Collaborators

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)

  Least Concern (LC) ; Date assessed: 27 March 2009

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless




Human uses

FAO(Publication : search) | FishSource |

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Internet sources

Aquatic Commons | BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes(genus, species) | DiscoverLife | ECOTOX | Faunafri | Fishtrace | GenBank(genome, nucleotide) | GloBI | GOBASE | | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | National databases | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Scirus | SeaLifeBase | Tree of Life | Wikipedia(Go, Search) | World Records Freshwater Fishing | Zoological Record

Estimates based on models

Preferred temperature (Ref. 115969): 25.4 - 29.3, mean 28.8 (based on 783 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 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.
Resilience (Ref. 120179):  High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100).