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Oncorhynchus rastrosus (originally described as Smilodonichthys rastrosus [2]) also known as the saber-toothed salmon (now known to be a misnomer), [3] or spike-toothed salmon [1] is an extinct species of salmon that lived along the Pacific coast of North America and Japan. [4]
The giant salmon carp has been rediscovered in Cambodia. ... These challenges are why scientists have long worried that the “Mekong Ghost,” a critically endangered giant salmon carp that can ...
The giant salmon carp [2] (Aaptosyax grypus), also termed the Mekong giant salmon carp, [1] is a species of freshwater fish in the family Cyprinidae and the single species in the monotypic genus Aaptosyax. [3] It is endemic to the middle reaches of the Mekong River in northern Cambodia, Laos, and Thailand.
Since 2017, biologists tracking migratory fish species in Cambodia have developed relationships with local fishing communities, asking them to alert any unusual sightings. That's how the three giant salmon carp found in the Mekong River and a tributary in Cambodia between 2020 and 2023 came to the attention of researchers.
Siberian taimen (Hucho taimen), also known as the common taimen (Russian: Обыкнове́нный тайме́нь, romanized: Obyknovénnyĭ taĭménʹ), Siberian giant trout or Siberian salmon, is a species of salmon-like ray-finned fish from the genus Hucho in the family Salmonidae.
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Extinct due to destruction of nesting habitat by introduced goats, and predation by cats. [56] Zacatecas Worthen's sparrow: Spizella wortheni browni: Northwest Zacatecas, Mexico Last recorded in 1961. Extinct due to habitat loss to agriculture, overgrazing and erosion by cattle herding, and decline of native herbivores which maintained the bird ...
The extinct Eosalmo driftwoodensis, the oldest known Salmoninae fish in the fossil record, helps scientists figure how the different species of salmon diverged from a common ancestor. The Eocene salmon's fossil from British Columbia provides evidence that the divergence between Pacific and Atlantic salmon had not yet occurred 40 million years ago.