Fish Food Products Research Articles

THE large sums of money annually expended by both the National Government and the several states in fish propagation fall into two general fields of activity, the marine and the freshwater. The freshwater activity in turn may for convenience be divided into the production of food and game fish. It is always proper to examine the conditions which influence restocking; and just at this time it is especially fitting to enquire into the efficacy of the methods. 'The technique involved in securing the eggs and their care during hatching have been well worked out. It was a marked step in advance when these modern methods were first put into practice. The money used in carrying out modern methods in the! many fish hatcheries, is efficiently expended so far as the writer has been able to determine. The fundamental scientific problems involved have been solved so that the regular fish foreman can successfully direct and supervise all of the steps in the process. After the eggs have been hatched and the young fed for a certain length of time, they are distributed to the' ponds and streams. The last act in the series is the one concerning which, we know the least. In order too gain an insight into the actual conditions, a typical Adirondack pond was selected for study. The whitefish is the only species that has become at all abundant as a result of the policy of the state. The fault doe-s' not seem to be connected with the number of fingerlings placed in this lake, for the state' has, indeed, been

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