wee f 187 a that the Columbia River salmon are also vory tomp2rature sensitive. Tho younz migrating sise salmon can stand 20 degrees d. ct Uv Contisrade, wiich is fine, for a number of results. Tho adul ‘ are probably even more resistant unless you get up into tenratures around 35 Centigrade where you have bacterial action taking ever and discase comings in, This is not so with the ones. We noticed in our rovular monitoving experiments that wo thought we cculd sce some nortality in eos which we could attribute to fair incroases in tomperature. We ran a tenmparaiure test on ezgs of Chinsok Y salmon, and these 16 and 17 dosre2s you misht commare with fish, (Indicating) The blu Ww on Dr, Patrick's quotation of yesterday fer some of the warm water of normal tennveratures in the Coluuwbia Riyor over a poricd of years. We hanoened to vin this durinz,1952 aud, obviously, this was probably a good or bad year to ren the thing because it was the warmest year that we These are have actually soan out there. s oxnperdimental levels, and wa set the experinent up to foliow the temporature of the Colunbia, introduced salmon est at the time the fish were spawning and otserved the mortality on the ezgs. This was actually carricd through into the fingerlin:~ ‘Rather interestinzly wea found that the lowest mortality was below that norvoanl for the Coluwrwtbia Rivor. It was a little