Annual Fish

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A salmon run is an annual fish migration event where many salmon species, which are typically hatched in fresh water and live most of their adult life downstream in the ocean, swim back against the stream to the upper reaches of rivers to spawn on the gravel beds of small creeks. After spawning, most Atlantic salmon and all species of Pacific salmon die, and the salmon life cycle starts over again with the new generation of hatchlings. Salmon are anadromous, spending their juvenile life in rivers or lakes, and then migrating out to sea where they spend adult lives and gain most of their body…

Austrolebias queguay es una especie de pez anual ciprinodontiforme integrante del género de rivulinos sudamericanos Austrolebias. ​ Habita en una pequeña región del centro-este de Sudamérica. ​​ Taxonomía Austrolebias queguay fue descrita originalmente en el año 2018 por los ictiólogos uruguayos Wilson Sebastián Serra Alanis y Marcelo Loureiro Barrella.