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Threatened Fish
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Threatened Fish
Species
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143
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Airsac catfish (
Heteropneustes microps
)
The peculiar looking airsac catfish, known from only a few specimens, is an air-breathing, freshwater fish. A long air sac that...
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1 Image
0 Videos
Albacore tuna (
Thunnus alalunga
)
This large, oceanic fish is built for speed, with a torpedo-shaped body, smooth skin and streamlined fins. The albacore tuna...
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1 Image
0 Videos
Angel shark (
Squatina squatina
)
With its exceptionally flat body and large pectoral fins, the angel shark resembles a large ray more than a shark. Its skin...
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4 Images
0 Videos
Anguila ciega (
Ophisternon infernale
)
Like many cave-dwelling species, the Anguila ciega, otherwise known as the blind swamp eel, has lost its eyes and pigmentation...
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5 Images
0 Videos
Arapaima (
Arapaima gigas
)
The arapaima, or pirarucu as it is known in Brazil, is one of the largest freshwater fishes in the world. Its local name derives...
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6 Images
3 Videos
Asian sheepshead wrasse (
Semicossyphus reticulatus
)
One of the largest wrasses, the Asian sheepshead wrasse is an extraordinary pinkish-grey fish with large, swelling-like protrusions...
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1 Image
0 Videos
Atlantic halibut (
Hippoglossus hippoglossus
)
A highly sought after food fish, the Atlantic halibut is the largest flatfish in the world. Flatfish exhibit a unique and...
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4 Images
1 Video
Banded neolebias (
Neolebias lozii
)
Information on the banded neolebias is currently being researched and written and will appear here...
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2 Images
0 Videos
Barren's topminnow (
Fundulus julisia
)
Information on the Barren's topminnow is currently being researched and written and will appear here...
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3 Images
0 Videos
Basking shark (
Cetorhinus maximus
)
The basking shark is the second largest fish in the seas, after the whale shark (Rhincodon typus); its maximum size is thought...
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8 Images
3 Videos
Beluga (
Huso huso
)
The beluga is the largest sturgeon in the world and the largest European freshwater fish; it can reach up to 5 metres in length....
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3 Images
1 Video
Bengaii cardinal fish (
Pterapogon kauderni
)
Information on the Bengaii cardinal fish is currently being researched and written and will appear here...
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11 Images
0 Videos
Big skate (
Raja binoculata
)
Aptly named, the big skate is the largest skate in North American waters. As with all skates, the body is flattened and disc-shaped...
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6 Images
0 Videos
Big-belly seahorse (
Hippocampus abdominalis
)
The big-belly seahorse is one of the largest of all seahorses, growing up to 35 cm in length. Like other seahorses, the head...
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10 Images
1 Video
Bigeye tuna (
Thunnus obesus
)
This large, fast-swimming tuna is an important target for numerous commercial fisheries around the world. The streamlined body...
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3 Images
0 Videos
Black sea bass (
Stereolepis gigas
)
As implied by its alternative name of giant sea bass, the most dramatic feature of this fish is its conspicuous size, with the...
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7 Images
0 Videos
Blacksaddled coral grouper (
Plectropomus laevis
)
Like other groupers, this rather wary, coral reef-dwelling fish is a large, robust species. It may be one of two colour forms: the...
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4 Images
0 Videos
Blackspotted torpedo (
Torpedo fuscomaculata
)
Information on the blackspotted torpedo is currently being researched and written and will appear here...
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1 Image
0 Videos
Blacktip reef shark (
Carcharhinus melanopterus
)
This is the most commonly encountered species of shark in tropical Indo-Pacific reefs. Its medium-sized, streamlined body...
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11 Images
1 Video
Blacktip shark (
Carcharhinus limbatus
)
The black tip shark is a large, stout shark, with a long, pointed snout and small eyes. Its torpedo-shaped body, grey...
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14 Images
1 Video
Blind cave fish (
Astyanax mexicanus
)
Information on Astyanax mexicanus is currently being researched and written and will appear here...
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2 Images
0 Videos
Blind shark (
Brachaelurus waddi
)
This small, stout shark gets its name from its habit of retracting its eyeballs, which causes its thick eyelids to close, when...
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5 Images
0 Videos
Blue shark (
Prionace glauca
)
The blue shark is easily identified by its beautifully coloured slender body, which is a deep indigo-blue across the back, shading...
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15 Images
4 Videos
Blue-spotted stingray (
Taeniura lymma
)
This colourful stingray is immediately recognisable by the large, bright, iridescent blue spots that adorn its oval, elongated...
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18 Images
1 Video
Bluespotted bamboo shark (
Chiloscyllium plagiosum
)
Information on the bluespotted bamboo shark is currently being researched and written and will appear here...
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3 Images
0 Videos
Bluntnose six-gill shark (
Hexanchus griseus
)
As its common name alludes, the bluntnose six-gill shark has a characteristically blunt rounded snout and six long gill slits...
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6 Images
2 Videos
Boesman's rainbowfish (
Melanotaenia boesemani
)
Information on the Boesman's rainbowfish is currently being researched and written and will appear here...
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3 Images
0 Videos
Bowmouth guitarfish (
Rhina ancylostoma
)
Named for its distinctive mouth which undulates like a longbow, this deep-bodied guitarfish is unmistakable. The species has...
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3 Images
0 Videos
Broadnose sevengill shark (
Notorynchus cepedianus
)
Information on the broadnose sevengill shark is currently being researched and written and will appear here...
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4 Images
0 Videos
Bronze whaler (
Carcharhinus brachyurus
)
Named for its bronze, or sometimes greyish-bronze upperside, this is a large, fairly slender shark with a moderately long and...
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12 Images
1 Video
Brown-marbled grouper (
Epinephelus fuscoguttatus
)
The brown-marbled grouper is a robust marine fish, with a pale yellowish-brown, scaled body, covered with large, irregular, dark...
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3 Images
0 Videos
Bull shark (
Carcharhinus leucas
)
The bull shark, named for its stocky body and ferocious reputation, is most famous for its remarkable ability to thrive in both...
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12 Images
3 Videos
Cave catfish (
Clarias cavernicola
)
The cave catfish is a freshwater, cave-dwelling fish. This unusual fish lacks pigment and appears a pinkish white colour. It has...
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4 Images
2 Videos
Chilean devil ray (
Mobula tarapacana
)
Information on the Chilean devil ray is currently being researched and written and will appear here...
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4 Images
0 Videos
Clanwilliam rock-catfish (
Austroglanis gilli
)
The Clanwilliam rock-catfish, found only in a few streams in South Africa, belongs to the family of Austroglanididae catfishes...
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3 Images
0 Videos
Coastal stingaree (
Urolophus orarius
)
The coastal stingaree is a rare endemic of southern Australian waters and is seldom seen in the wild. As with most rays, the body...
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1 Image
0 Videos
Coelacanth (
Latimeria chalumnae
)
The coelacanth is a ‘living fossil' previously believed to have gone extinct at the time of the dinosaurs until the first...
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7 Images
2 Videos
Common sawfish (
Pristis pristis
)
The common sawfish has an ironic name as it is actually a rare species, facing a very real possibility of extinction. The most...
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1 Image
0 Videos
Common seahorse (
Hippocampus kuda
)
The common seahorse is a relatively large species, which is not common as the English name suggests, but is classified...
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4 Images
0 Videos
Common skate (
Dipturus batis
)
The common skate is the largest European ray. The undersurface is dark grey with black spots or stripes and the uppersurface...
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2 Images
0 Videos
Congo blackfin (
Altolamprologus calvus
)
Information on the Congo blackfin is currently being researched and written and will appear here...
More
7 Images
0 Videos
Crowned seahorse (
Hippocampus coronatus
)
This Japanese seahorse earns its common name for the tall, backward-curving crown on top of its head, which is coupled with rather...
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1 Image
0 Videos
Dama ciega blanca (
Typhliasina pearsei
)
Like many brotulids, this blind, cave-dwelling fish has evolved to exist completely without eyes. This unusual-looking species has...
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5 Images
0 Videos
Danube salmon (
Hucho hucho
)
One of the world's biggest salmonids, the Danube salmon is now amongst the most endangered fish species in Europe. This sizeable...
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1 Image
0 Videos
Daska (
Pseudophoxinus stymphalicus
)
Typical of most cyprinids, the daska is a small, silvery-brown fish, sometimes with a slight purplish sheen in the light, but...
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1 Image
0 Videos
Denise's pygmy seahorse (
Hippocampus denise
)
Denise's pygmy seahorse is a master of camouflage, its orange colouration and body tubercles exactly matching the stems and polyps...
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10 Images
0 Videos
Devil's Hole pupfish (
Cyprinodon diabolis
)
Found only in a single desert spring in Nevada, USA, this tiny fish has the most restricted range of any vertebrate. The smallest...
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2 Images
0 Videos
Diamond ray (
Gymnura natalensis
)
Information on the diamond ray is currently being researched and written and will appear here...
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3 Images
0 Videos
Double sash butterflyfish (
Chaetodon marleyi
)
The double sash butterflyfish is superbly suited to its common name; it swims with flitting movements, evocative of the flight...
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1 Image
0 Videos
Dusky grouper (
Epinephelus marginatus
)
Jacques Cousteau reportedly said that groupers were the strangest creatures he had come across at sea. The dusky grouper...
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5 Images
0 Videos
Species
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