. California fish and game. Fisheries -- California; Game and game-birds -- California; Fishes -- California; Animal Population Groups; Pêches; Gibier; Poissons. CALIFORNIA FISH AND GAME. 27 return upon their nuptial migration to the stream in whicli they passed their early life, rather than to that of their real parentage. It also appeared that these pond-reared fish behaved much as did those which had lived in the stream under natural conditions, that they eventually reached a similar size at a given age, and that in other respects they were like fish bred under natural conditions. A counter
. California fish and game. Fisheries -- California; Game and game-birds -- California; Fishes -- California; Animal Population Groups; Pêches; Gibier; Poissons. CALIFORNIA FISH AND GAME. 27 return upon their nuptial migration to the stream in whicli they passed their early life, rather than to that of their real parentage. It also appeared that these pond-reared fish behaved much as did those which had lived in the stream under natural conditions, that they eventually reached a similar size at a given age, and that in other respects they were like fish bred under natural conditions. A counter experiment performed in the Sacramento River produced similar results, thus confirming that of the Klamath. It having been demonstrated that salmon, when mature, enter the streams from which they at first migrated, the Division attempted to determine just how far this homing instinct would obtain with regard to particular tributaries of a river system. Since king salmon. Fig. 16. Diagram showing how various lots of salmon were marked in experiments on the Klamath River. in the Klamath mature at from three to six years of age, it will be appreciated that any experiment having to do with them must extend over a considerable period of time. Cooperation among observers, officials, packers, anglers and commercial fishermen enters largely into the work, and lack of interest on the part of someone may cause partial or entire failure. A test of the homing instinct with regard to tributaries of a river was initiated in the fall of 1923 in the Klamath. The preliminaries of this experiment were fully described in California Fish and Game for January, 1924. The returns are not complete at this writing, but enough observations have been made to establish certain facts. As in the previously described experiment, the work centered about Fall Creek Hatchery, which is located about one mile above the junction. Please note that these images are extracted from scanned page images that may have
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