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Printable version; Page information; Get shortened URL; Download QR code; ... English: Life Cycle of Atlantic Salmon. Date: 11 February 2024: Source: Text labels: Own ...
When juvenile salmon migrate to the Pacific Ocean, the second host releases a stage infective to salmon. The parasite is then carried in the salmon until the next spawning cycle. The myxosporean parasite that causes whirling disease in trout has a similar life cycle. [75]
The life cycle of salmon requires specific conditions within the chain of connected environments. Salmon typically live 3–6 years, which often changes depending on life conditions. While some salmon stay within the Puget Sound, others will migrate and live deeper in the Pacific Ocean. [9]
Atlantic salmon do not require saltwater. Numerous examples of fully freshwater (i.e., "landlocked") populations of the species exist throughout the Northern Hemisphere, [2] including a now extinct population in Lake Ontario, which has been shown in recent studies to have spent its entire life cycle in the watershed of the lake. [22]
This section details the stages and the particular names used for juvenile salmon. Sac fry or alevin – The life cycle of salmon begins and usually also ends in the backwaters of streams and rivers. These are their spawning grounds, where salmon eggs are deposited for among the gravels of stream beds. The salmon spawning grounds are also the ...
A grizzly bear ambushing a jumping salmon during an annual salmon run. A salmon run is an annual fish migration event where many salmonid 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.
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The life cycle of a salmon begins in a freshwater stream or river that dumps into the ocean. [2] After spending four or five years in the ocean and reaching sexual maturity, many salmon return to the same streams they were born in to spawn. There are several hypotheses on how salmon are able to do this.