资料来源 : Webster's Revised Unabridged Dictionary (1913)

Nerka \Ner"ka\, n. [Russ. niarka, prob. fr. native name.]
   (Zo["o]l.)
   The most important salmon of Alaska ({Oncorhinchus nerka}),
   ascending in spring most rivers and lakes from Alaska to
   Oregon, Washington, and Idaho; -- called also {red salmon},
   {redfish}, {blueback}, and {sawqui}.

资料来源 : WordNet®

red salmon
     n 1: fatty red flesh of salmon of Pacific coast and rivers [syn:
          {sockeye}, {sockeye salmon}]
     2: small salmon with red flesh; found in rivers and tributaries
        of the northern Pacific and valued as food; adults die
        after spawning [syn: {sockeye}, {sockeye salmon}, {blueback
        salmon}, {Onchorynchus nerka}]