Decorated goby (Istigobius decoratus) fish species and information / pictures of Decorated goby - Istigobius decoratus

Decorated goby (Istigobius decoratus) fish species information

Scientific Name
Istigobius decoratus

Common Name
Decorated goby

Biology
Dorsal spines (total): 7; Dorsal soft rays (total): 10-11; Anal spines: 1; Anal soft rays: 9 - 11; Vertebrae: 26. Color highly variable. 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.

Classification

Classified By
Herre, 1927
Class
Ray-finned fishes (Actinopterygii)
Order
Perch-like fish (Perciformes)
Family
Gobies (Gobiidae)

Distribution

Region
Indo-West Pacific
Distribution
Indo-West Pacific: Red Sea to Samoa, north to Taiwan, south to Lord Howe Island.
Range
30°N - 40°S

Environment

Climate
Tropical
Water Temperature From
23 °C
Water Temperature To
29 °C
Depth From - meters
0 m
Depth To - meters
20 m
Zone
reef-associated
Environment
Marine; reef-associated; depth range 0 - 20 m (Ref. 9360), usually 1 - 18 m (Ref. 27115)
Trophic Level
3.2 s.e. 0.34 Based on size and trophs of closest relatives
Occurs in Marine / Salt water
True
Occurs in Brackish water
False
Occurs in Fresh Water
False
Occurs on Reefs
True
Is kept in Aquariums
True

Physical Size and Genetics

Maximum Length
13.0 cm
Common Length
Unknown cm
Phylogenetic Diversity Index
PD50 = 0.5005 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses
Aquarium: commercial
Vulnerability
Low to moderate vulnerability (26 of 100)
Resilience
High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.)
Threat To Humans
  Harmless
IUCN Red List Status
  Not Evaluated