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