Goldfish (Carassius auratus auratus) fish species and information / pictures of Goldfish - Carassius auratus auratus

Goldfish (Carassius auratus auratus) fish species information

Scientific Name
Carassius auratus auratus

Common Name
Goldfish

Biology
Dorsal spines (total): 3 - 4; Dorsal soft rays (total): 14-20; Anal spines: 2 - 3; Anal soft rays: 4 - 7; Vertebrae: 30. Body stout, thick-set, caudal peduncle thick and short (Ref. 1998). Head without scales (Ref. 39167, 1998), broadly triangular (Ref. 1998), interorbital space broad, snout longer than eye diameter, maxillary reaching posterior nostril or not quite to eye (Ref. 39166), barbels lacking on upper jaw (Ref. 39104, 1998). Lateral line complete. Dorsal and anal fins with serrate bony spines, pelvic fins short, broad and thoracic. Nuptial tubercles of male fine, on opercle, sometimes on back and a few on pectoral fins. Hybridize readily with carp, hybrids intermediate in most characteristics (Ref. 1998). Caudal fin with 17-19 rays (Ref. 2196). Last simple anal ray osseous and serrated posteriorly; no barbels (Ref. 43281). Pigmentation: Wild-caught specimens, olive brown (Ref. 39168, 39104), slate olive, olive green, with a bronze sheen (Ref. 391

Classification

Classified By
Linnaeus, 1758
Class
Ray-finned fishes (Actinopterygii)
Order
Carps (Cypriniformes)
Family
Minnows or carps (Cyprinidae)

Distribution

Region
Asia
Distribution
Asia: central Asia and China, and Japan (Ref. 6390). Introduced throughout the world. Asian form of the goldfish (Ref. 1739). Several countries report adverse ecological impact after introduction.
Range
53°N - 22°N

Environment

Climate
Subtropical
Water Temperature From
Unknown °C
Water Temperature To
41 °C
Depth From - meters
0 m
Depth To - meters
20 m
Zone
benthopelagic
Environment
Freshwater; ; pH range: 6.0 - 8.0; dH range: 5 - 19 benthopelagic; potamodromous (Ref. 51243); depth range 0 - 20 m (Ref. 6898)
Trophic Level
2 s.e. 0.00 Based on diet studies.
Occurs in Marine / Salt water
False
Occurs in Brackish water
False
Occurs in Fresh Water
True
Occurs on Reefs
False
Is kept in Aquariums
True

Physical Size and Genetics

Maximum Length
32.0 cm
Common Length
10.0 cm
Phylogenetic Diversity Index
PD50 = 0.5625 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses
Fisheries: commercial; aquaculture: commercial; gamefish: yes; aquarium: highly commercial; bait: occasionally
Vulnerability
Low vulnerability (22 of 100)
Resilience
Medium, minimum population doubling time 1.4 - 4.4 years (K=0.17; tm=1; tmax=30)
Threat To Humans
  Potential pest
IUCN Red List Status
  Not Evaluated