
Encyclopedias of species

Endangered fish
Many species are currently vulnerable. Out of the 10,500 freshwater fish species whose conservation status has been assessed by the IUCN, 30% are considered endangered.
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tequila splitfin
Goodeidae
tequila splitfin
Goodeidae
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lake kurumoi rainbowfish
Melanotaeniidae
lake kurumoi rainbowfish
Melanotaeniidae
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Peckoltia compta
Loricariidae
Peckoltia compta
Loricariidae
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sarasin's goby
Gobiidae
sarasin's goby
Gobiidae
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redtail sharkminnow
Cyprinidae
redtail sharkminnow
Cyprinidae
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Hypsolebias carlettoi
Cyprinodontidae
Hypsolebias carlettoi
Cyprinodontidae
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carachamita
Loricariidae
carachamita
Loricariidae
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Melanochromis lepidiadaptes
Cichlidae
Melanochromis lepidiadaptes
Cichlidae
The giants of the oceans
Nowadays, the large aquatic species are becoming rare and threatened due to overfishing. Many of these species have slow growth rates and have been heavily targeted over the past centuries, with a peak in the 1990s.
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wolf-eel
Anarhichadidae
wolf-eel
Anarhichadidae
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Triaenodon obesus
Carcharhinidae
Triaenodon obesus
Carcharhinidae
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green moray
Muraenidae
green moray
Muraenidae
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roughtail stingray
Dasyatidae
roughtail stingray
Dasyatidae
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zebra shark
Stegostomatidae
zebra shark
Stegostomatidae
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Alopias pelagicus
alopiidae
Alopias pelagicus
alopiidae
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brown stingray
Dasyatidae
brown stingray
Dasyatidae
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silky shark
Carcharhinidae
silky shark
Carcharhinidae
Jewels of the reefs
Coral reefs showcase the most extravagant marine fauna. All sizes, shapes, colors, and patterns come together in this joyful parade. Reefs are essential for marine balance.
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Triggerfishes
The bullies of the reefs
Triggerfishes
The bullies of the reefs
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Surgeonfish
The Scalpel Specialists
Surgeonfish
The Scalpel Specialists
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Clownfish
The residents of the anemones
Clownfish
The residents of the anemones
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seahorses
Seahorses
seahorses
Seahorses
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breams and basses
breams and basses
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scorpionfishes
Scorpionfishes
scorpionfishes
Scorpionfishes
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The fish of the Amazon
The Amazon, the largest freshwater basin in the world, is characterized by the diversity of its habitats and numerous biodiversity hotspots. In 2024, over 2,500 fish species were recorded there, but research and exploration efforts are still ongoing.
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Pimelodus pictus
Pimelodidae
Pimelodus pictus
Pimelodidae
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Hemigrammus ocellifer
Characidae
Hemigrammus ocellifer
Characidae
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Apistogramma diplotaenia
Cichlidae
Apistogramma diplotaenia
Cichlidae
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Lonchogenys ilisha
Acestrorhynchidae
Lonchogenys ilisha
Acestrorhynchidae
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Pterophyllum leopoldi
Cichlidae
Pterophyllum leopoldi
Cichlidae
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bushymouth catfish
Loricariidae
bushymouth catfish
Loricariidae
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Astronotus ocellatus
Cichlidae
Astronotus ocellatus
Cichlidae
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Pyrrhulina cf brevis
Lebiasinidae
Pyrrhulina cf brevis
Lebiasinidae
The fish Europeans
Not always known to the general public, the fauna that inhabits our lakes, rivers, and streams is very diverse. The arrival of invasive species and the drying up of wetlands threaten nearly a quarter of Europe's freshwater fish species.
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northern pike
Esocidae
northern pike
Esocidae
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mediterranean barbel
Cyprinidae
mediterranean barbel
Cyprinidae
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bleak
Leuciscidae
bleak
Leuciscidae
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barbel
Cyprinidae
barbel
Cyprinidae
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european perch
Percidae
european perch
Percidae
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Phoxinus septimaniae
Leuciscidae
Phoxinus septimaniae
Leuciscidae
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Aphanius farsicus
Cyprinodontidae
Aphanius farsicus
Cyprinodontidae
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european pilchard
Clupeidae
european pilchard
Clupeidae
of the Americas
Present on Earth before the dinosaurs, snakes have inspired numerous myths and beliefs, from the depths of the Amazon to the Bible.
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green anaconda
Boidae
green anaconda
Boidae
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rainbow snake
Colubridae
rainbow snake
Colubridae
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red-bellied mudsnake
Colubridae
red-bellied mudsnake
Colubridae
The crustaceans
With their warrior-like appearance, crustaceans are exceptional cleaners and scavengers. There are now over 50,000 species with forms as diverse as daphnia, crabs, or mantis shrimp.
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Pacifastacus leniusculus
Astacidae
Pacifastacus leniusculus
Astacidae
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Geosesarma dennerle
Sesarmidae
Geosesarma dennerle
Sesarmidae
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Ranina ranina
Raninidae
Ranina ranina
Raninidae
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Percnon planissimum
Plagusiidae
Percnon planissimum
Plagusiidae
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Alpheus randalli
Alpheidae
Alpheus randalli
Alpheidae
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Dardanus deformis
Diogenidae
Dardanus deformis
Diogenidae
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Dardanus guttatus
Diogenidae
Dardanus guttatus
Diogenidae
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Calcinus latens
Diogenidae
Calcinus latens
Diogenidae
The mollusks
From snails to squids, there are now 50,000 recorded
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Octopus cyanea
Octopodidae
Octopus cyanea
Octopodidae
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Bolinus brandaris
Muricidae
Bolinus brandaris
Muricidae
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Murex pecten
Muricidae
Murex pecten
Muricidae
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Mauritia mauritiana
Cypraeidae
Mauritia mauritiana
Cypraeidae
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Mauritia arabica
Cypraeidae
Mauritia arabica
Cypraeidae
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Thaumoctopus mimicus
Octopodidae
Thaumoctopus mimicus
Octopodidae
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blue dragon / blue sea slug
Glaucidae
blue dragon / blue sea slug
Glaucidae
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Rochia nilotica
tegulidae
Rochia nilotica
tegulidae

The fish of the Mediterranean
There are over 700 fish species recorded in the Mediterranean Sea. Many species, especially in the wrasse family, only inhabit these waters, which are now heavily impacted by human activities.
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black seabream
Sparidae
black seabream
Sparidae
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cuckoo wrasse
Labridae
cuckoo wrasse
Labridae
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longspine snipefish
Centriscidae
longspine snipefish
Centriscidae
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Atherinomorus lacunosus
Atherinidae
Atherinomorus lacunosus
Atherinidae
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wide-eyed flounder
Bothidae
wide-eyed flounder
Bothidae
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marbled torpedo ray
Torpedinidae
marbled torpedo ray
Torpedinidae
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starry skate
Rajidae
starry skate
Rajidae
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common pandora
Sparidae
common pandora
Sparidae
The fish of the Canary Islands
Located off the coast of Morocco, the Canary Islands host unique marine biodiversity, blending species from the Mediterranean Sea with the first subtropical animals of the Atlantic Ocean. Here, you can find flute fish, several species of damselfish, and pufferfish, among others.
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common pandora
Sparidae
common pandora
Sparidae
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striped red mullet
Mullidae
striped red mullet
Mullidae
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gilthead seabream
Sparidae
gilthead seabream
Sparidae
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greater weever
Trachinidae
greater weever
Trachinidae
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axillary wrasse
Labridae
axillary wrasse
Labridae
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pelagic stingray
Dasyatidae
pelagic stingray
Dasyatidae
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cuckoo wrasse
Labridae
cuckoo wrasse
Labridae
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bermuda sea chub
Kyphosidae
bermuda sea chub
Kyphosidae
The fish of the Caribbean
The Caribbean Sea is home to the world's second-largest coral reef, the Mesoamerican Barrier Reef. This coral barrier stretches for about 1,000 km along the Caribbean coast of Mexico, Belize, Guatemala, and Honduras. It houses 10% of the world's coral reefs and over 1,400 species of fish and marine mammals.
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french angelfish
Pomacanthidae
french angelfish
Pomacanthidae
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fairy basslet
Grammatidae
fairy basslet
Grammatidae
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yellowtail snapper
Lutjanidae
yellowtail snapper
Lutjanidae
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bermuda sea chub
Kyphosidae
bermuda sea chub
Kyphosidae
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gray triggerfish
Balistidae
gray triggerfish
Balistidae
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white grunt
Haemulidae
white grunt
Haemulidae
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pelagic stingray
Dasyatidae
pelagic stingray
Dasyatidae
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sheepshead
Sparidae
sheepshead
Sparidae
The fish of Réunion and the western Indian Ocean
A volcanic island situated west of the Indian Ocean, Réunion has a discontinuous belt of lagoons formed by coral reefs. In the lagoons protected by coral barriers, aquatic fauna is easily accessible to divers and bathers. Unfortunately, these areas are often degraded by human activities.
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Dascyllus abudafur
Pomacentridae
Dascyllus abudafur
Pomacentridae
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pinstriped butterflyfish
Chaetodontidae
pinstriped butterflyfish
Chaetodontidae
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blackfin dartfish
Gobiidae
blackfin dartfish
Gobiidae
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longhorn cowfish
Ostraciidae
longhorn cowfish
Ostraciidae
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fire goby
Ptereleotridae
fire goby
Ptereleotridae
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brownbanded wrasse
Labridae
brownbanded wrasse
Labridae
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painted frogfish
Antennariidae
painted frogfish
Antennariidae
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lined butterflyfish
Chaetodontidae
lined butterflyfish
Chaetodontidae

The stars of freshwater
There are countless species available to populate your aquariums, but how do you choose? Behavior, size, longevity, reproduction... discover which ones will adapt best to your project and desires.
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dwarf cichlids
The small tropical territorial fish
dwarf cichlids
The small tropical territorial fish
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livebearers
Mosquito eaters
livebearers
Mosquito eaters
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Loaches
Loaches
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freshwater dwarf shrimps
The tiny jewels of tropical rivers
freshwater dwarf shrimps
The tiny jewels of tropical rivers
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catfish
catfish
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Icons of the aquarium hobby
Fighters, guppies, angelfish, discus... these fish have fascinated generations of enthusiasts. However, it's very important to know their maintenance requirements well, allowing them to have a long and enjoyable life by your side.
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Hemigrammus ocellifer
Characidae
Hemigrammus ocellifer
Characidae
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Cyprinus rubrofuscus « Koï »
Cyprinidae
Cyprinus rubrofuscus « Koï »
Cyprinidae
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rainbow cichlid
Cichlidae
rainbow cichlid
Cichlidae
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green swordtail
Poeciliidae
green swordtail
Poeciliidae
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suckermouth catfish
Loricariidae
suckermouth catfish
Loricariidae
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goldfish
Cyprinidae
goldfish
Cyprinidae
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blue discus
Cichlidae
blue discus
Cichlidae
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Siamese fighting fish
Osphronemidae
Siamese fighting fish
Osphronemidae