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Istiblennius lineatus  (Valenciennes, 1836)

Lined rockskipper
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Native range | All suitable habitat | Point map | Year 2100
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Istiblennius lineatus   AquaMaps   Data sources: GBIF OBIS
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Image of Istiblennius lineatus (Lined rockskipper)
Istiblennius lineatus
Picture by Wirtz, P.

Classification / Names Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii (ray-finned fishes) > Perciformes (Perch-likes) > Blenniidae (Combtooth blennies) > Salariinae
Etymology: Istiblennius: Greek, istios = sail + Greek, blennios = mucus (Ref. 45335).

Environment / Climate / Range Ecology

Marine; reef-associated; depth range 0 - 3 m (Ref. 30874).   Tropical; 32°N - 28°S

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

Indo-Pacific: Laccadive Islands and Maldives to Mangaréva, Gambier Islands. Western Central Pacific: Guam (Ref. 35721).

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 15.0 cm TL male/unsexed; (Ref. 48636)

Short description Morphology | Morphometrics

Dorsal spines (total): 13 - 14; Dorsal soft rays (total): 225; Anal spines: 2; Anal soft rays: 23 - 25. Color dusky, greenish with dusky lines. Males with crest and dorsal with alternate dark and pale oblique lines (Ref. 48636). Living specimens may exhibit a complex facial pattern similar to, but not quite as intricate as, that of Entomacrodus niuafoouensis, and barely discernable parallel pinstripes on their sides.

Biology     Glossary (e.g. epibenthic)

Adults occur in the intertidal zone of rocky shores, rocky reef flats (Ref. 9710), including rock pools, harbors and mangrove zones (Ref. 48636). They graze algae on rocks by groups (Ref. 90102). 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. 115185)

CITES (Ref. 108899)

Not Evaluated

Threat to humans

  Harmless




Human uses

Fisheries: of no interest; aquarium: commercial
FAO(Publication : search) | FisheriesWiki | Sea Around Us

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Estimates of some properties based on models

Preferred temperature (Ref. 115969): 25.2 - 29.3, mean 28.5 (based on 2835 cells; Ref. 115970).
Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5001   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00741 (0.00328 - 0.01678), b=3.00 (2.81 - 3.19), 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. 69278):  High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153):  Low to moderate vulnerability (26 of 100) .