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Istigobius decoratus  (Herre, 1927)

Decorated goby
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Istigobius decoratus   AquaMaps   Data sources: GBIF OBIS
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Istigobius decoratus
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Classification / Names Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii (ray-finned fishes) > Perciformes (Perch-likes) > Gobiidae (Gobies) > Gobiinae
Etymology: Istigobius: Greek, istios = sail + Latin, gobius = gudgeon (Ref. 45335).

Environment / Climate / Range Ecology

Marine; reef-associated; depth range 1 - 25 m (Ref. 90102), usually 1 - 18 m (Ref. 27115).   Tropical; 23°C - 29°C (Ref. 27115), preferred ?; 30°N - 40°S

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

Indo-West Pacific: Persian Gulf (Ref.80050) and Red Sea to Samoa, north to Taiwan, south to Lord Howe Island.

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 13.0 cm TL male/unsexed; (Ref. 2798)

Short description Morphology | Morphometrics

Dorsal spines (total): 7; Dorsal soft rays (total): 10-11; Anal spines: 1; Anal soft rays: 9 - 11; Vertebrae: 26. Color highly variable, brownish on upper half, grading to white below; dark brown scale margins forming honeycomb pattern and midlateral row of double dark brown spots forming rectangular markings (Ref. 90102); segmented and non branching caudal rays 3 (rarely 2), branching 14 (rarely 15). Predorsal cycloid scales 7-10, trunk ctenoid. Few with no black spots on nape. Isthmus narrow, scaled forward to vertical at posterior part of preoperculum. 2 diagonal, dusky lines on operculum; an inverted U-shaped spot prominent at the distal end of upper jaw. Pectoral fin with small dusky spots; 2 longitudinal lines on pectoral base spreading onto it fin rays. Sexual dimorphism exhibited in anal, pelvic and 2nd dorsal fin (Ref. 420).

Biology     Glossary (e.g. epibenthic)

A common species that inhabits areas of coralline sand of clear lagoon and seaward reefs (Ref. 9710, 48637). Found singly. Minimum depth from Ref. 58018.

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Genital papilla of male sometimes darkly pigmented and reaching to side of anal spine. Female genital papilla truncate, ending well before origin of anal fin.

Main reference Upload your references | References | Coordinator | Collaborators

Murdy, E.O. and D.F. Hoese, 1985. Revision of the gobiid fish genus Istigobius. Indo-Pac. Fish. (4):41 p. (Ref. 420)

IUCN Red List Status (Ref. 109396)

CITES (Ref. 94142)

Not Evaluated

Threat to humans

  Harmless




Human uses

Aquarium: commercial
FAO(Publication : search) | FisheriesWiki | Sea Around Us

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Internet sources

BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes (gen., sp.) | DiscoverLife | Faunafri | Fishtrace | GenBank(genome, nucleotide) | GOBASE | Google Books | Google Scholar | Google | IGFA World Record | National databases | Otolith Atlas of Taiwan Fishes | PubMed | Scirus | SeaLifeBase | Tree of Life | Wikipedia(Go, Search) | World Records Freshwater Fishing | Zoological Record

Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5010   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00813 (0.00486 - 0.01360), b=2.96 (2.82 - 3.10), based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
Trophic Level (Ref. 69278):  3.4   ±0.3 se; Based on size and trophs of closest relatives
Resilience (Ref. 69278):  High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153):  Low vulnerability (25 of 100) .