invasive freshwater fish

Koi fish color meaning in koi fish tattoo what you need to know 2019invasive freshwater fish

invasive freshwater fish invasive freshwater fish

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General information

This fish is declared noxious in Queensland. It is unlawful to possess noxious fish alive or dead or to use them as bait. It is illegal to place or release noxious fish alive or dead into Queensland waterways. Penalties of up to $200,000 apply.

We need your help to stop the spread of carp:

  1. Know how to identify carp.
  2. Don’t spread carp between waterways.
  3. Report sightings of carp.
Scientific nameCyprinus carpio
DescriptionThree varieties of carp are present in Australian waters: the common or European carp, koi carp and mirror carp.

  • carp have large scales
  • deeply forked tail
  • single dorsal fin
  • two pairs of fleshy whiskers (or barbels) in the corners of their upper lip. These barbels are a useful way of distinguishing them from goldfish which do not have any
  • colouration is highly variable – they may be bronze or olive-gold, becoming pale yellow or whitish on the sides and belly or have a bright gold colouration
  • koi carp are often brightly coloured with dark blotches over their back
  • can live up to 17 years.
  • native to central Asia
  • introduced to Australia as a sportfish in the late 1800s
  • widely distributed throughout south-eastern Australia with smaller populations in Western Australia and Tasmania
  • in Queensland carp have established throughout the Murray-Darling River in the Condamine-Balonne catchment, Paroo River, Warrego River, Nebine Creek, Culgoa River, Barwon River and MacIntyre River
  • also abundant in the Logan and Albert rivers south of Brisbane
  • there have been isolated reports of people keeping koi carp in ornamental ponds around the State – this is an offence and the fish must be removed.
  • prefer warm, still waters with silt bottoms and abundant aquatic vegetation
  • rarely found in clear, cool, swiftly flowing streams
  • can survive at high and low temperatures (4-35°C), high salinity and turbidity and low dissolved oxygen levels.
  • feed by sucking up mud and plants from the bottom and blowing out what they don’t want. This feeding behaviour is known as ‘roiling’
  • adults feed on crustaceans, insects and plant material
  • larval stages feed on plankton.
  • males are sexually mature between 1-3 years of age and females between 2-4 years of age
  • carp spawn between September – December and can produce up to 1.5 million eggs.
Environmental impacts
  • have the potential to rapidly outnumber native fish and doinate aquatic communities – carp can survive a range of environmental conditions which native fish find difficult to cope with
  • feeding habits can result in muddied water and uprooted aquatic vegetation – less light can penetrate muddy water resulting in reduced plant growth and lower oxygen levels, thereby degrading the water quality making it more difficult for other species to survive
  • strategies are being developed to control and reduce the number of carp in Australian waters
  • poisons have been used to eradicate carp in ponds and small dams, but are not practical for rivers and streams as these poisons also kill native fish
  • biological control methods, such as manipulating the genetic structure of carp to disrupt their breeding or bring an early death, are being investigated
  • intensive fishing may have the potential to reduce carp numbers in small enclosed waterbodies, but it is very unlikely that fishing alone is an effective long-term control measure.


  • Department of Primary Industries and Fisheries, 2001, Control of Exotic Pest Fishes: An operational strategy for Queensland freshwaters . Queensland Primary Industries and Fisheries, Brisbane.
  • Department of Primary Industries and Fisheries, 1997, Fish Guide. Saltwater, Freshwater and Noxious Species. The Great Outdoors Publications, Brisbane.
  • Eschymer, WN, (1998), Catalog of Fishes. California Academy of Sciences, San Francisco.
  • Grant, EM, 1997, Grant’s Guide To Fishes. EM Grant Pty Limited, Brisbane
  • Merrick, JR and Schmida GE, 1984. Australian Freshwater Fishes: Biology and Management. Griffin Press Limited, South Australia

Further information

Noxious fish

A noxious fish is one that has been declared as harmful under Queensland law because it is, or may become, a serious pest to native aquatic communities.

Noxious fish have characteristics that are detrimental to other fish, aquatic habitats or humans.

Noxious fish cannot be kept, hatched, reared or sold, or taken home for eating or any other purpose. Penalties up to $220,000 apply.

The Queensland Government currently has 131 fish species and/or genus declared as noxious by the Fisheries Regulation 2008. People must not possess noxious fish or keep, hatch, rear, sell or consign them. Noxious fish must not be released into Queensland waters or be used as bait, either dead or alive. After they are caught, all noxious fish must immediately be killed humanely and must not be returned to the water.

In 2006, a national strategy titled “A Strategic Approach to Management of Ornamental Fish in Australia” was developed. The Department represents the Queensland Government on the Vertebrate Pest Committee Freshwater Fish Working Group (FFWG) to implement the strategy which included the assessment of implementation of the National Noxious Fish List into Qld legislation.  The most recent update of the FFWG activities can be found on the Australian Government Department of the Environment website.

Current declared noxious fish species

Fisheries Act – Schedule 6 – current Jan 2014
Common nameScientific name
aba abaGymnarchus niloticus
Adriatic sturgeonAcipenser naccarii
African butter catfishSchilbe mystus
African lungfishProtopterus annectens
African pikeHepsetus odoe
African pike-characin, tubenose poacher, fin eaterfish of the subfamily Ichthyborinae
American gar, alligator gar, armoured garLepisosteus spp. and Atractosteus spp.
Alfaro huberiAlfaro huberi
Amur sturgeonAcipenser schrenckii
angler catfishChaca bankanensis
angler, catfish, frogmouth catfish, squarehead catfishChaca chaca
Atlantic sturgeonAcipenser oxyrinchus oxyrinchus
Baikal sturgeonAcipenser baerii baicalensis
banded jewelfishHemichromis fasciatus
banded sunfish, spotted sunfishfamily Centrachidae
barred tail pearlfishLeptolebias minimus
belugaHuso huso
bighead carpAristichthys nobilis
bigmouth sleeperGobiomorus dormitor
blackchin tilapiaSarotherodon melanotheron melanotheran
bluegillLepomis spp.
bottlenose, cornish jackMormyrops anguilloides
bowfinAmia calva
brook sticklebackCulaea inconstans
burmensis frogmouth catfishChaca burmensis
candiru catfish, parasitic catfish, pencil catfishfamily Trichomycteridae
carpCyprinus carpio
catlaCatla catla
chameleon goby, striped gobyTridentiger trigonocephalus
channel catfishIctalurus punctatus
Chinese sturgeonAcipenser sinensis
Chinese swordfishPsephurus gladius
Chinese weatherfish, weatherloachMisgurnus anguillicaudatus
climbing perchAnabas testudineus
copper mahseerNeolissochilus hexagonolepis
discus rayParatrygon aiereba
electric catfishMalapterurus spp.
electric eelElectrophorus electricus
European catfish, wels catfishSilurus spp.
European sturgeonAcipenser sturio
fat sleeperDormitator maculatus
flatnose catfish, dwarf giraffe catfishAnaspidoglanis macrostomus
forktail latesLates microlepis
fourspine sticklebackApeltes quadracus
freshwater minnowZacco platypus
fringebarbel sturgeonAcipenser nudiventris
gambusia, mosquito fishGambusia spp.
giant barbCatlocarpio siamensis
giant bullyGobiomorphus gobioides
giant cichlidBoulengerochromis microlepis
gilled lungfishProtopterus amphibius
grass carpCtenopharyngodon idella
green sturgeonAcipenser medirostris
Gulf sturgeonAcipenser oxyrinchus destotoi
Hypseleotris tohizonaeHypseleotris tohizonae
Japanese sturgeonAcipenser multiscutatus
knife-edged livebearerAlfaro cultratus
lake sturgeonAcipenser fulvescens
largemouth bassMicropterus salmoides
Leptolebias aureoguttatusLeptolebias aureoguttatus
marbled lungfishProtopterus aethiopicus
marbled pearlfishLeptolebias marmoratus
marble gobyOxyeleotris marmorata
Mekong giant catfishPangasianodon gigas
Mississippi paddlefishPolyodon spathula
mrigalCirrhinus cirrhosus
Nile perchLates niloticus
ninespine sticklebackPungitius pungitius
opal pearlfishLeptolebias opalescens
orange-fin labeoLabeo calbasu
Oxyeleotris siamensisOxyeleotris siamensis
Oxyeleotris urophthalmoidesOxyeleotris urophthalmoides
Oxyeleotris urophthalmusOxyeleotris urophthalmus
Pacific sleeperGobiomorus maculatus
Pacific fat sleeperDormitator latifrons
Pangasius conchophilusPangasius conchophilus
Pangasius elongatusPangasius elongatus
Pangasius krempfiPangasius krempfi
Pangasius kunyitPangasius kunyit
Pangasius macronemaPangasius macronema
Pangasius nasutusPangasius nasutus
Pangasius nieuwenhuisiiPangasius nieuwenhuisii
Persian sturgeonAcipenser persicus
pike characinAcestrorhynchus microlepis
pike cichlidCrenicichla spp.
pike minnow, pike killifishBelonesox belizanus
pikesEsox spp.
pink, slender, greenwoods, mortimers, cunean and green happySargochromis spp.
piranhas, pacusfish of the subfamily Serrasalminae, other than Metynnis spp. and Myleus rubripinnis
purpleface largemouthSerranochromis spp.
pygmy sunfishElassoma spp.
redfin bullyGobiomorphus huttoni
red swamp crayfishProcambarus clarkii
reedfishErpetoichthys calabaricus
ripsaw catfish, black doras, black shielded catfishOxydoras spp.
river carp, deccan, high backed, jungha, putitor, Thai mahseerTor spp.
rohuLabeo rohita
Russian sturgeonAcipenser gueldenstaedtii
Sakhalin sturgeonAcipenser mikadoi
Sentani gudgeonOxyeleotris heterodon
shinersNotropis spp.
shortnosed garLepisosteus platostomus
shortnose sturgeonAcipenser brevirostrum
shoulderspot catfishSchilbe marmoratus
Siberian sturgeonAcipenser baerii baerii
silver carpHypophthalmichthys molitrix
silver catfishSchilbe intermedius
slender lungfishProtopterus dolloi
snakeheadChanna spp.
snooksCentropomus spp.
South American lungfishLepidosiren paradoxa
Southern redbelly dacePhoxinus erythrogaster
spot pangasiusPangasius larnaudii
starry sturgeonAcipenser stellatus
sterletAcipenser ruthenus
stinging catfishHeteropneustes fossilis
tiger catfishPseudoplatystoma fasciatum
tigerfish (African), pike characinHydrocynus spp., subfamilies Hydrocyninae and Alestinae
tigerfish (South American) or trahiraErythrinus, Hoplerythrinus and Hoplias spp.
tilapiaTilapia spp, Oreochromis spp and Sarotherodon spp.
Tomeurus gracilisTomeurus gracilis
tropical carp-gudgeonHypseleotris cyprinoides
twospot lebiasinaLebiasina bimaculata
twospot livebearerHeterandria bimaculata
Ubangi shovelnose catfishBagrus ubangensis
Valencia toothcarpValencia hispanica
walking catfish, airbreathing catfishfamily Clariidae
white sturgeonAcipenser transmontanus
Yangtze sturgeonAcipenser dabryanus
yellowbelly gudgeonAllomogurnda nesolepis
yellowfin gobyAcanthogobius flavimanus
yellowtailed catfishPangasius pangasius

Further information

invasive freshwater fish people ask

What is an invasive fish?
An invasive species is an organism that causes ecological or economic harm in a new environment where it is not native.

An invasive species can be introduced to a new area via the ballast water of oceangoing ships, intentional and accidental releases of aquaculture species, aquarium specimens or bait, and other means.

What is the most invasive fish?
10 of most invasive fish species in the world
Walking catfish. The walking catfish is a freshwater, airbreathing catfish from Southeast Asia. ( …
Common carp. …
Mosquito fish. …
Nile perch. …
Rainbow trout. …
Mozambique tilapia. …
Northern snakehead. …

Buy koi fish painting

Author: Giovanni Carlo

I am a koi fish keeper and breeder a husband of beautiful wife Maybel and beautiful daughter May Carl I have been in fish keeping hobby for over 35 years. Like many kids in the 80's We catch fish in the rivers and canals and kept it in the "pasong" local visayan name for pond. or a large mayo bottle since We don't have aquariums yet on that time. decades later their is a small petshop open in my place and that starts me from buying aquarium and fishes that are sold in the pet store decades later start growing goldfish and koi fish until today.

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