Stargazer (Uranoscopus scaber) fish species and information / pictures of Stargazer - Uranoscopus scaber

Stargazer (Uranoscopus scaber) fish species information

Scientific Name
Uranoscopus scaber

Common Name
Stargazer

Biology
The shoulder spines can inflict, painful stings. Usually found buried in the sand or mud. Equipped with an acoustic apparatus that generates both acoustic and electric pulses. Electric discharge activity shows two temporal patterns: 1) reflexive discharges of short duration (milliseconds), elicited by mechanical stimulation, and 2) those of much longer duration (several seconds) observed only during the summer spawning period (Ref. 10011). Low-frequency spontaneous discharge activity (5-10 Hz), with a sexual dimorphism in discharge amplitude is also said to exist. This species suggestively represents a transitional form in the evolution of electric organs in fishes (Ref. 10577). Oviparous, eggs, larvae and juveniles are pelagic (Ref. 6763). Utilized fresh (Ref. 9987).

Classification

Classified By
Linnaeus, 1758
Class
Ray-finned fishes (Actinopterygii)
Order
Perch-like fish (Perciformes)
Family
Stargazers (Uranoscopidae)

Distribution

Region
Eastern Atlantic and Mediterranean Sea.
Distribution
Eastern Atlantic and Mediterranean Sea.
Range
Unknown

Environment

Climate
Subtropical
Water Temperature From
Unknown °C
Water Temperature To
Unknown °C
Depth From - meters
15 m
Depth To - meters
400 m
Zone
demersal
Environment
Marine; demersal; depth range 15 - 400 m (Ref. 6763)
Trophic Level
4.38 s.e. 0.70 Based on food items.
Occurs in Marine / Salt water
True
Occurs in Brackish water
False
Occurs in Fresh Water
False
Occurs on Reefs
False
Is kept in Aquariums
False

Physical Size and Genetics

Maximum Length
40.0 cm
Common Length
22.0 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
Fisheries: minor commercial; gamefish: yes
Vulnerability
Low to moderate vulnerability (32 of 100)
Resilience
Medium, minimum population doubling time 1.4 - 4.4 years (tm=2)
Threat To Humans
  Venomous (Ref. 4690)
IUCN Red List Status
  Not Evaluated