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The European sea sturgeon (Acipenser sturio), also known as the Atlantic sturgeon or common sturgeon, is a species of sturgeon native to Europe. It was formerly abundant, being found in coastal habitats all over Europe. [5] Most specifically, they reach the Black and Baltic Sea. [6] It is anadromous and breeds in rivers.
Acipenser gueldenstaedtii — Russian sturgeon; Acipenser mikadoi — Sakhalin sturgeon; Acipenser nudiventris — Fringebarbel sturgeon; Acipenser persicus — Persian sturgeon; Acipenser ruthenus — Sterlet; Acipenser schrenckii — Japanese sturgeon; Acipenser stellatus — Starry sturgeon; Acipenser sturio — European sea sturgeon; Huso
Acipenser is a genus of sturgeons.With 17 living species (others are only known from fossil remains), it is the largest genus in the order Acipenseriformes.The genus is paraphyletic, containing all sturgeons that do not belong to Huso, Scaphirhynchus, or Pseudoscaphirhynchus, with many species more closely related to the other three genera than they are to other species of Acipenser.
Globally, sturgeon fisheries are of great value, primarily as a source for caviar, but also for flesh. [42] Several species of sturgeon are harvested for their roe which is processed into caviar—a delicacy, and the reason why caviar-producing sturgeons are among the most valuable and endangered of all wildlife resources. [43]
In Sweden, the European river lamprey (Lampetra fluviatilis), living in fresh waters, is the most usual usage of the term lamprey. The Lampetra planeri is a closely related species living in small streams, possibly even the same species. The lamprey is the provincial fish of Västerbotten in northern Sweden. (European) river lamprey
Liver regeneration is the process by which the liver is able to replace damaged or lost liver tissue. The liver is the only visceral organ with the capacity to regenerate. [ 1 ] [ 2 ] The liver can regenerate after partial hepatectomy or injury due to hepatotoxic agents such as certain medications, toxins, or chemicals. [ 3 ]
The oldest unambiguous members of the order are the Chondrosteidae, a group of large fish found in marine deposits from the Early Jurassic (201–175 million years ago) of Europe, which already have reduced ossification of the skeleton. [11] The Peipiaosteidae are known from Middle Jurassic-Early Cretaceous freshwater deposits in Asia. [12]
The kaluga (Huso dauricus), also known as the river beluga, is a large predatory sturgeon found in the Amur River basin from Russia to China and near Hokkaido in Japan. [1] With a maximum size of at least 1,000 kg (2,205 lb) and 5.6 m (18 ft), the kaluga is one of the biggest of the sturgeon family.