Retrieving "Fish Nest" from the archives

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1. Atlantic Salmon

   Linked via "redds"

   Freshwater Phase (Alevin to Parr)
   Eggs are typically laid in gravel beds (redds) in clear, cold, well-oxygenated rivers. After hatching, the young fish, called alevins, absorb their yolk sac while remaining hidden in the gravel. Once free-swimming, they become fry and subsequently parr. The parr stage is defined by the development of distinctive vertical markings, or parr marks, which serve a [camouflage](/entries/camou…