Game Birds and Game Fishes of the Pacific Coast

by Harry Thom Payne

The history of the so-called steelhead trout and the efforts to class these sea-run fishes as a species separate from the rainbow and the cutthroat, is interesting, if not amusing. No one questioned that they were other than the sea-run of the rainbow or the cutthroat, according to the locality, until Dr. Richardson, mistaking a young blue-back salmon for a so-called steelhead gave it the scientific name of Salmo gairdneri, and the description of this young salmon was recognized as that of the steelhead for years, and under this name it appears in the statutes of California, with a separate season for its protection. In other words the Salmo gairdneri of the laws of California is a young blue-back salmon and not a sea-run trout of any kind. Recently Dr. Ayers to correct the mistake, examined a fish taken from the Sacramento river and said to be a steelhead, gave it the name of Salmo rivularis, and this now stands as the scientific name of the so-called steelhead. Dr. Jordan, in an article recently published in the Pacific Monthly, says: "There has been much discussion as to whether the steelhead is a species really distinct from the rainbow trout, and on this subject the writer (Jordan) has at different times held different opinions."

If one authority bases his reasons for a belief in a specific difference between the rainbow and the steelhead on the fact that he did find a difference between a blue-back salmon and a rainbow, and another authority finds so little difference that he holds different opinions at different times, can there be any wonder that the practical angler, who catches these sea-run fish at the mouths of our rivers in every stage of transition, or gradation, if you please, from the typical rainbow to the Simon pure steelhead, refuses to believe that there is a specific difference?

Then again, Messrs. Jordan and Evermann in bulletin 47 of the United States National Museum, "The Fishes of North and Middle America," say: "In the lower course of the Columbia they (the steelhead) are entirely distinct from the cutthroat or clarki series, and no one would question the validity of the two species. In the lower Snake river and other waters east of the Cascade range, the two forms or species are indistinguishable, being either undifferentiated or else inextricably mixed."

From this it would seem clear that the steelhead of the Columbia, where the cutthroat abounds, are cutthroats that have gone to the sea, grown larger in the larger body of water—a natural condition of all fishes—and changed in color and appearance. That while they are yet in the lower Columbia and only recently from the salt water, they still maintain a sufficient difference to be easily distinguished from the cutthroat; but by the time that they have reached the "Snake river and other waters east of the Cascade range," their long residence in the fresh water has again restored them to their former appearance. The same changes are found with the rainbow and the steelhead of farther south. All trout are anadromous to greater or less extent, unless actually landlocked or living in streams so distant from the sea that they would be compelled to pass through long stretches of warm and sluggish water to reach it. The small trout of the coast streams are compelled to go to the ocean quite early in the season by the falling of the water to such an extent that in many cases the streams go dry before the beginning of the winter rains, and in the larger body of water they rapidly increase in size. The steelhead of the Columbia river always retains the cutthroat sing-manual, to greater or less extent, while the steelhead of the lower coast has no red on the jaw. The claim that the smaller head of the steelhead is a distinguishing mark, fails in effect, for it is an undisputable fact that the older and larger the trout the smaller becomes the relative size of the head. The other claim that the larger scales of the rainbow is a distinguishing feature from the steelhead is not founded on facts. For while the scales of the rainbow counted along the lateral line vary from as low as 120 in the coast streams, they run as high as 150 in the same streams, as high as 160 in the McCloud and 185 in the Kern. The average being 135 in the smaller coast streams, 150 in the Sacramento basin, and 170 in the Kern. The steelhead's scales run from 130 to 155. An average of 145; or exactly an average of those of the coast streams and the Sacramento. Were it possible for the Kern river trout to enter the ocean no doubt we would find steelhead running as high as 185 to the section.

Whatever may be the origin of the large sea-running trout called steelheads, the fact remains that it is a grand fish both in size and fighting qualities. In the ocean it eagerly takes the spoon and fights with a vigor not even surpassed by the rainbow of the streams. After a short sojourn in the fresh waters it rises to a fly just as readily.

Since the above was written Dr. Jordan has made the statement publicly, that he is thoroughly convinced that the rainbow trout and the so-called steelhead are one and the same fish; the only difference being that the latter has grown larger and changed its color during its life in the salt water, this variation of color returning again after a short sojourn in the fresh water streams, giving it all the original appearance of the rainbow, or of the cutthroat, as the case may be.

THE CUTTHROAT TROUT

(Salmo clarki)

The cutthroat trout very largely take the place of the rainbow in the waters of northern California and in Washington and Oregon, and its various forms are more common to the lakes. Like the rainbow they have been artificially distributed to such an extent that they are now found in many of the streams of California and nearly all of Washington and Oregon. As a general rule they are not as keen fighters as the rainbow, but in the cold streams of Oregon and Washington they put up a fight worthy of the most gamy fish. In the lakes of Washington and Oregon, and such as Tahoe, Donner and other large bodies of water in California, they reach a large size; fishes of ten and twelve pounds being not uncommon. When not landlocked they go to the sea the same as the rainbow and return as the steelhead of the Columbia and other northern streams. Like the rainbow the cutthroat has been divided into several subspecies.

General appearance like that of the rainbow. The color on the back is a lighter olive or dark steel color. The upper parts are generally thickly covered with dark spots, varying in color and shape, and the lower fins are also spotted with smaller spots. The inner edge of the lower jaw is strongly marked with deep red and it is from this red mark on the throat that the species takes its name. The sides are generally of a marked pinkish hue or coppery brown. The red mark of the throat will always prove a distinguishing feature.