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anadromous
living in both fresh and salt water at different times in its life cycle
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osteichthyes
fish with bony skeletons
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ovopartity
lay undeveloped egs, external fertilization; broadcast spawning
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homing
return to natal site to breed
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semelparity
death after first reproduction
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embryo
after fertilization, before hatching
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alevin
after hatching, before emergence from the gravel
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fry
newly emerged juvenile, rearing in freshwater
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parr
juvenile, rearing in freshwater
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smolt
transitional stage to the marine form
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jack
mature male younger than the females
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redd
nest, including one or more egg pockets
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run
number of salmon surviving to adulthood in a given population
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pacific salmon range
from California north to the Arctic Ocean and west to Russia, Japan and Korea
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salmon maturation takes
2 to 7 years
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hybridization between populations (or between hatchery-produced and wild stocks) results in
a loss of genetic diversity both within and between populations
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