New Zealand country information

Common names: Koi
Occurrence: introduced
Salinity: freshwater
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Voucher specimen(s) held at the NMNZ (as Cyprinus carpio Linnaeus 1758 in Ref. 5755). Recorded from the North I, widespread only in the north but range is expanding (Ref. 52336).
National Checklist:
Country Information: httpss://www.cia.gov/library/publications/resources/the-world-factbook/geos/nz.html
National Fisheries Authority: https://www.fish.govt.nz/
Occurrences: Occurrences Point map
Main Ref: Welcomme, R.L., 1988
National Database:

Classification / Names

Actinopterygii (ray-finned fishes) > Cypriniformes (Carps) > Cyprinidae (Minnows or carps) > Cyprininae
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL

Common names from other countries

Carpa común, 鲤, Сазан(=карп), ... more

Main reference

Kottelat, M. and J. Freyhof. 2007. (Ref. 59043)
References | Biblio | Coordinator | Collaborators

Size / Weight / Age

Max length : 120 cm TL male/unsexed; (Ref. 27549); common length : 31.0 cm TL male/unsexed; (Ref. 3561); max. published weight: 40.1 kg (Ref. 72380); max. reported age: 38 years (Ref. 72479)

Length at first maturity
L_m 34.9, range 25 - 36 cm

Environment

Freshwater; brackish; benthopelagic; pH range: 7.0 - 7.5; dH range: 10 - 15; potamodromous (Ref. 51243)

Climate / Range

Subtropical; 3°C - 35°C (Ref. 12741), preferred ?; 60°N - 22°N, 7°E - 144°E

Distribution

Europe to Asia: Black, Caspian and Aral Sea basins. Introduced throughout the world. Wild stocks are only present naturally in rivers draining to the Black, Caspian and Aral Sea (Ref. 59043). A reophilic wild population in the Danube is assumed to be the origin of the European species; this population is now under threat (Ref. 13696).
Countries | FAO areas | Ecosystems | Occurrences | Introductions

Short description

Dorsal spines (total): 3 - 4; Dorsal soft rays (total): 17-23; Anal spines: 2-3; Anal soft rays: 5 - 6; Vertebrae: 36 - 37. Diagnosed from other cyprinid species in Europe by having the following characters: 2 pairs of barbels; dorsal fin with 15-20½ branched rays; caudal fin deeply emarginate (Ref. 59043). Pharyngeal teeth 1, 1, 3:3, 1,1, robust, molar-like with crown flattened or somewhat furrowed. Scales large and thick. `Wild carp ' is generally distinguished by its less stocky build with height of body 1:3.2-4.8 in standard length. Very variable in form, proportions, squamation, development of fins, and color. Caudal fin with 3 spines and 17-19 rays (Ref. 2196). Last simple anal ray bony and serrated posteriorly; 4 barbels; 17-20 branched dorsal rays; body grey to bronze (Ref. 43281). Also Ref. 3398, 3410.

Adults inhabit warm, deep, slow-flowing and still waters such as lowland rivers and large, well vegetated lakes (Ref. 59043). Hardy and tolerant of a wide variety of conditions but generally favor large water bodies with slow flowing or standing water and soft bottom sediments. Thrive in large turbid rivers (Ref. 1998). Most active at dusk and dawn. Both adults and juveniles feed on a variety of benthic organisms and plant material. Spawns along shores or in backwaters. Adults often undertake considerable spawning migration to suitable backwaters and flooded meadows. Larvae survive only in very warm water among shallow submerged vegetation. River regulation and hybridization with domesticated stocks, East Asian congeners and their hybrids have caused continuous decline of wild populations (Ref. 59043). Utilized fresh and frozen (Ref. 9987). Aquarium keeping: in groups of 5 or more individuals; minimum aquarium size >200 cm; not recommended for home aquariums (Ref. 51539).