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Types of Freshwater

Acipenser ​Albertensis​
Acipenser ​Albertensis​

The shortnose sturgeon (Acipenser brevirostrum) is a small North American sturgeon which can be found in 16 to 19 large river and estuary systems along the Atlantic seaboard from the Saint John River in New Brunswick, Canada, to the St. Johns River in Florida, United States.

source: eol.org
Acipenser ​Oxyrinchus​
Acipenser ​Oxyrinchus​

The Acipenser oxyrinchus is native to the countries of Canada and the United States. They can be found in sub-tropical climates and in a marine, freshwater environment. Characteristics. The Acipenser oxyrinchus can grow to the average length of 14 feet and the average weight of 800 pounds. The lifespan of this species can be around 60 years.

Adriatic ​Sturgeon​
Adriatic ​Sturgeon​

Like most sturgeon, the Adriatic sturgeon is an anadromous fish and can be found at different periods of its life in freshwater and marine environments, including estuaries and brackish water. Historically it was to be found in the Adriatic Sea and the rivers flowing into it on either side.

American eel​
American eel​

The American eel (Anguilla rostrata) is a facultative catadromous fish found on the eastern coast of North America. Eels (Anguilla spp.) are fish belonging to the elopomorph superorder, a group of phylogenetically ancient teleosts.

Anguilla ​Bengalensis​
Anguilla ​Bengalensis​

Anguilla bengalensis (non Gray, 1831) The mottled eel (Anguilla bengalensis), also known as the African mottled eel, the Indian longfin eel, the Indian mottled eel, the long-finned eel or the river eel, is a demersal, catadromous eel in the family Anguillidae.

image: fishbase.se
Anguilla ​Bicolor​
Anguilla ​Bicolor​

Anguilla bicolor is olive to dark bluish-brown dorsally and lighter ventrally from the jaw to the anus. Its dorsal fin soft rays number 240-250 and its anal fin soft rays, 200-220. This species typically has between 106 to 115 vertebrae (Ege 1939).

Bastard ​Sturgeon​
Bastard ​Sturgeon​

Sturgeon is the common name for the 27 species of fish belonging to the family Acipenseridae. Their evolution dates back to the Triassic some 245 to 208 million years ago. The family is grouped into four genera: Acipenser, Huso, Scaphirhynchus and Pseudoscaphirhynchus.

Beluga​
Beluga​

The beluga / b ə ˈ l uː ɡ ə / or European sturgeon (Huso huso) is a species of anadromous fish in the sturgeon family (Acipenseridae) of order Acipenseriformes. It is found primarily in the Caspian and Black Sea basins, and occasionally in the Adriatic Sea.

Chinese ​Sturgeon​
Chinese ​Sturgeon​

Most sturgeon spawn in fresh water and migrate to salt water to mature. The Chinese sturgeon can be considered a large freshwater fish, although it spends part of its lifecycle in seawater, like the salmon, except Chinese sturgeon spawn multiple times throughout their lives.

Dabry's ​Sturgeon​
Dabry's ​Sturgeon​

Dabry's sturgeon (Acipenser dabryanus) is a species of fish in the sturgeon family, Acipenseridae.Other common names include Yangtze sturgeon, Chiangjiang sturgeon, and river sturgeon.

European eel​
European eel​

The European eel (Anguilla anguilla) is a species of eel, a snake-like, catadromous fish. They can reach a length of 1.5 m (4 ft 11 in) in exceptional cases, but are normally around 60–80 cm (2.0–2.6 ft), and rarely reach more than 1 m (3 ft 3 in).

European sea ​Sturgeon​
European sea ​Sturgeon​

The European sea sturgeon (Acipenser sturio), also known as the Atlantic sturgeon or common sturgeon, is a species of sturgeon previously found on most coasts of Europe.

Giant Mottled ​eel​
Giant Mottled ​eel​

The giant mottled eel (Anguilla marmorata), also known as the marbled eel, is a species of tropical anguillid eel that is found in the Indo-Pacific and adjacent freshwater habitats.

image: zsl.org
Green ​Sturgeon​
Green ​Sturgeon​

The green sturgeon (Acipenser medirostris) is a species of sturgeon native to the Pacific Ocean, from China and Russia, over into Canada and the United States.

Japanese eel​
Japanese eel​

The Japanese eel is an important food fish in East Asia, where it is raised in aquaculture ponds in most countries in the region. In Japan, where they are called unagi, they are an important part of the food culture, with many restaurants serving grilled eel, which is called kabayaki.

Japanese ​Sturgeon​
Japanese ​Sturgeon​

Sturgeon is the common name for the 27 species of fish belonging to the family Acipenseridae. Their evolution dates back to the Triassic some 245 to 208 million years ago. The family is grouped into four genera: Acipenser, Huso, Scaphirhynchus and Pseudoscaphirhynchus.

image: revolvy.com
Kaluga​
Kaluga​

The kaluga (Huso dauricus) is a ... Also known as the river beluga, they are claimed to be the largest freshwater fish in the world, with a maximum size of at least ...

Lake Sturgeon​
Lake Sturgeon​

The lake sturgeon (Acipenser fulvescens), also called rock sturgeon, is a North American temperate freshwater fish, one of about 25 species of sturgeon. Like other sturgeons, ...

New Zealand ​Longfin eel​
New Zealand ​Longfin eel​

The New Zealand longfin eel (Anguilla dieffenbachii) is the largest and the only endemic freshwater eel species in New Zealand. (The others are the native Shortfin eel, Anguilla australis, also found in Australia, and the naturally introduced Australian Longfin eel Anguilla reinhardtii).

image: doc.govt.nz
Persian ​Sturgeon​
Persian ​Sturgeon​

The Persian sturgeon (Acipenser persicus) is a species of fish in the family Acipenseridae. It is found in the Caspian Sea and to a lesser extent the Black Sea and ascends certain rivers to spawn, mainly the Volga, Kura, Araks and Ural Rivers.

Russian ​Sturgeon​
Russian ​Sturgeon​

Sturgeon have been referred to as both the Leviathans and Methuselahs of freshwater fish. They are among the largest fish: some beluga (Huso huso) in the Caspian Sea reportedly attain over 5.5 m (18 ft) and 2000 kg (4400 lb) while for kaluga (H. dauricus) in the Amur River, similar lengths and over 1,000 kg (2,200 lb) weights have been reported.

Sakhalin ​Sturgeon​
Sakhalin ​Sturgeon​

The Sakhalin sturgeon is known to be found in either a marine or freshwater environment within demersal depth range. This species is found in brackish waters. They are also native to a tropical climate.

Sea Lamprey​
Sea Lamprey​

Sea lamprey is the most sought-after species in Portugal and one of only two that can legally bear the commercial name "lamprey" (lampreia): the other one being Lampetra fluviatilis, the European river lamprey, both according to Portaria (Government regulation no. 587/2006, from 22 June).

image: alamy.com
Short-Finned ​eel​
Short-Finned ​eel​

The short-finned eel (Anguilla australis), also known as the shortfin eel, ... They had a highly developed fishery for freshwater eels before the arrival of Europeans.

Shortnose ​Sturgeon​
Shortnose ​Sturgeon​

For the most part, shortnose sturgeon are amphidromous fish—meaning they are born in freshwater, then live in their birth (natal) river, make short feeding or migratory trips into salt water, and then return to freshwater to feed and escape predation.

Siberian ​Sturgeon​
Siberian ​Sturgeon​

The Siberian sturgeon (Acipenser baerii) is a species of sturgeon in the Acipenseridae family. It is most present in all of the major Siberian river basins that drain northward into the Kara, Laptev and East Siberian Seas, including the Ob, Yenisei (which drains Lake Baikal via the Angara River) Lena, and Kolyma Rivers.

image: arkive.org
Speckled ​Longfin eel​
Speckled ​Longfin eel​

The speckled longfin eel, Australian long-finned eel or marbled eel (Anguilla reinhardtii) is one of 15 species of eel in the family Anguillidae. It has a long snake-like cylindrical body with its dorsal, tail and anal fins joined to form one long fin.

Starry ​Sturgeon​
Starry ​Sturgeon​

Chinese Sturgeon (Acipenser sinensis) resident of China. Its fossil record goes back as far as the dinosaur era. Drakul or Starry Sturgeon (Acipenser stellatus) is an adaptive resident of the Black, Azov, and the Caspian seas. Common Sturgeon (Acipenser sturio) is resident along most of the coasts of Europe.

Sterlet​
Sterlet​

The Sterlet is listed as 'Vulnerable' on the IUCN Red List of Threatened Species. Biology. The Sterlet is a potamodromous (freshwater only) species. During spawning migration Sterlets move upstream depending upon the water level. At high water levels migration is further upstream.

Tench​
Tench​

The tench or doctor fish (Tinca tinca) is a fresh-and brackish-water fish of the cyprinid family found throughout Eurasia from Western Europe including the British Isles east into Asia as far as the Ob and Yenisei Rivers.

White ​Sturgeon​
White ​Sturgeon​

White sturgeon is a species of sturgeon in the family Acipenseridae of the order Acipenseriformes. They are an anadromous fish species ranging in the Eastern Pacific; from the Gulf of Alaska to Monterey, California. However, some are landlocked in the Columbia River Drainage, Montana, and Lake Shasta in California, with reported sightings in northern Baja California, Mexico.