Fish

Chinook Salmon

Oncorhynchus tshawytscha
Fish Confluence of Snake and Columbia Rivers, near present-day Pasco, Washington New to Western Science
Chinook Salmon

Photo: Unknown author, Public domain

Common Names
Common Salmon / King Salmon
Habitat
Open ocean and large river systems of the Pacific Northwest
First Observed
1805-10-16
Observed At
Confluence of Snake and Columbia Rivers, near present-day Pasco, Washington

Lewis and Clark first encountered massive runs of chinook salmon near the confluence of the Snake and Columbia Rivers in mid-October 1805. Clark was confused by the enormous numbers of dead salmon lining the riverbanks, writing “The Cause of the emence numbers of dead Salmon I can’t account for” — he was witnessing the post-spawning die-off. Salmon were a critical food source traded from Native peoples throughout the Columbia Basin. The chinook is the largest Pacific salmon species.

Journal Excerpt

Clark, October 16, 1805: "Took our Canoes and all baggage over by land to the other Side of the rapid, and down to the river… I observe great numbers of dead Salmon on the Shores and floating in the water. The Cause of the emence numbers of dead Salmon I can't account for."

Journal References

15 journal entries mention Chinook Salmon

Aug 13 1805
Lewis: August 13, 1805
...of the flesh of an antelope boiled, and a peice of a fresh salmon roasted; both which I eat with a very good relish. this was the first salmon I had seen and perfe...
Aug 14 1805
Lewis: August 14, 1805
...om S. E. to N. W. which was navigable but afforded neither Salmon nor timber. that beyond this plain thee or four days march his relations lived in a country tolera...
Aug 19 1805
Lewis: August 19, 1805
...in fishing they employ wairs, gigs, and fishing hooks. the salmon is the principal object of their pursuit. they snair wolves and foxes. I was anxious to learn whet...
Aug 20 1805
Lewis: August 20, 1805
...e encampment for himself and party. here they gave him one salmon and some cakes of dryed berries. he now repeated to them what had been said to them in council at ...
Aug 21 1805
Lewis: August 21, 1805
...by these people, who gave himself and party as much boiled salmon as they could eat; they also gave him several dryed salmon and a considerable quantity of dryed c...
Aug 23 1805
Lewis: August 23, 1805
... provision they had brought with them, as well as the five salmon they had procured yesterday were consumed last evening; there was of tours no inducement for his ...
Oct 24 1805
Clark: October 24, 1805
...ly trac'd around the falls. at that Stage of the water the Salmon must pass up which abounds in Such great numbers abovebelow those falls are Salmon trout and great...
Jan 10 1806
Clark: January 10, 1806
...mble in Dress, Custom, manners &c. they brought Some Dried Salmon, Wappato, Dogs, and mats made of rushes & flags to barter; their Dogs and part of their wappato th...
Jan 14 1806
Clark: January 14, 1806
... anually prepare about 30,000 lbs of pounded fish (Chiefly Salmon) for market, but whether this fish is an article of Commerce with their neighbours or is exclusive...
Mar 31 1806
Lewis: March 31, 1806
... rapids I presume to prepare for the fishing season as the Salmon will begin to run shortly.this morning we overtook the man who had visited our camp last night he...
May 22 1806
Lewis: May 22, 1806
...towards the mountains. they also brought with them two red salmon trout which they had purchased from some indians whom they had met with on their return to camp.Tw...
May 25 1806
Clark: May 25, 1806
...shing, & the women out digging roots. he saw Several fresh Salmon which the nativs informed him Came from Lewis's river and were fat and fine. one of our men purcha...
May 25 1806
Lewis: May 25, 1806
..., diging roots or fishing on Lewis's river. he saw several salmon in their lodges which they informed him came from that river these fish were remarkably fat and fi...
May 26 1806
Clark: May 26, 1806
...ome roots for our Selves if possible. one of our men Saw a Salmon in the river to day. and two others eat of Salmon at the near Village which was brought from Lewis...
May 26 1806
Lewis: May 26, 1806
...ch the Indians have given us to kill. one of our men saw a salmon in the river today. in the afternoon we compleated our canoe and put her in the water; she appears...

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