Spotback goby (Elacatinus janssi) fish species and information / pictures of Spotback goby - Elacatinus janssi

Spotback goby (Elacatinus janssi) fish species information

Scientific Name
Elacatinus janssi

Common Name
Spotback goby

Biology
This species is distinguished by the following characters: fewer second dorsal and anal-fin rays than other species; a spotted head and body; distinctive head shape, when viewed dorsally, it is narrow and compressed anterior to the eyes, broadening posteriorly due to the thick cheek muscles; males typically with a large mouth extending beyond the end of the eye (Ref. 87125)..

Classification

Classified By
Bussing, 1981
Class
Ray-finned fishes (Actinopterygii)
Order
Perch-like fish (Perciformes)
Family
Gobies (Gobiidae)

Distribution

Region
Eastern Central Pacific
Distribution
Eastern Central Pacific: Costa Rica , Panama and Mexico.
Range
Unknown

Environment

Climate
Tropical
Water Temperature From
Unknown °C
Water Temperature To
Unknown °C
Depth From - meters
14 m
Depth To - meters
20 m
Zone
reef-associated
Environment
Marine; reef-associated; depth range 14 - 20 m (Ref. 11482)
Trophic Level
3.33 s.e. 0.37 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
False

Physical Size and Genetics

Maximum Length
3.0 cm
Common Length
Unknown cm
Phylogenetic Diversity Index
PD50 = 0.5000 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses
Unknown
Vulnerability
Low vulnerability (10 of 100)
Resilience
High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.)
Threat To Humans
  Harmless
IUCN Red List Status
  Least Concern (LC)