Catadromous fish - Fish living in the catadromous environment

Many types of fish migrate on a regular basis, on time scales ranging from daily to annual, and over distances ranging from a few meters to thousands of kilometers. Fish usually migrate because of diet or reproductive needs, although in some cases the reason for migration remains unknown.

Order Anguilliformes

New Zealand longfin eel

South Pacific eel

Giant mottled eel - This anguillid species can be found from East Africa to French Polynesia and north to southern Japan.

African mottled eel

Mottled eel

Highlands long-finned eel

Speckled longfin eel - The long-finned eel is a native of New Guinea, eastern Australia , Lord Howe Island, and New Caledonia.

Polynesian longfin eel

Indian short-finned eel - Anguilla bicolor is a species of eel in the genus Anguilla of the family Anguillidae consisting of two sub-species.

Anguilla nigricans

Japanese eel - Populations of the Japanese eel, along with anguillid eel populations worldwide, have declined drastically in recent years.

Eel - The eel lives in fresh water and only leaves this habitat to enter the Atlantic ocean for spawning.

African longfin eel

Order Clupeiformes

New Guinea thryssa - The freshwater anchovy is a species of fish in the Engraulidae family.

Bonga shad

Australian freshwater herring

Order Mugiliformes

Golden grey mullet

Grooved mullet

Freshwater springer - The freshwater mullet, Myxus capensis, is a species of fish in the Mugilidae family.

Blueback mullet

South African mullet - The South African mullet or harder mullet, Liza richardsonii, is a species of mullet.

Robust mullet

Half fringelip mullet

So-iny mullet


Sicklefin mullet

Freshwater mullet

Sand grey mullet


Tade mullet

Thicklip grey mullet - It is a common fish of shallow, sheltered coasts, estuaries, and around power station and sewer outfalls; it can also enter fresh water areas.


Largescaled mullet

Fairy mullet

Bobo mullet

Freshwater mullet

So-iuy mullet

Order Osmeriformes

Clarence galaxias - The Clarence galaxias is a species of fish in the Galaxiidae family.

Common galaxias - The common galaxias, Galaxias maculatus, is a species of fish from the galaxiid family that is very widespread in the southern hemisphere.

Order Perciformes

Jarbua terapon - Terapon jarbua is a Grunter from the Indo-Pacific.

Twospotted cichlid - Cichlasoma bimaculatum is an omnivorous, freshwater, tropical fish commonly referred to as the Black Acara or two-spot cichlid.

Jungle perch


Orange-spotted therapon

Barramundi - Barramundi is a loanword from an Australian Aboriginal language of the Rockhampton area in Queensland L.

Samoan mullet goby

Papuan black snapper

Order Pleuronectiformes

European flounder - The European flounder is oval in shape and is usually right-eyed.

Flounder - The distinctive features of the starry flounder include the combination of black and white-to-orange bar on the dorsal and anal fins, as well as the skin covered with scales modified into tiny star-shaped plates or tubercles , resulting in a rough feel.

Black flounder - The black flounder, Rhombosolea retiaria, is a flatfish of the genus Rhombosolea, found around New Zealand in shallow enclosed waters and coastal freshwater lakes.

Order Scorpaeniformes


Cottus hangiongensis

Roughskin soulpin

Fourspine sculpin

Order Siluriformes

Bloch's catfish