. Bulletin of the United States Fish Commission. Fisheries -- United States; Fish-culture -- United States. LIFE HISTORY OF LAKE HERRING OF LAKE HURON 391 the calculated lengths of these fish, as shown in Table 59, are employed. In Table 59 are given the computed average lengths, as determined from measurements of scales, for each year of life. To obtain these averages, I computed the lengths for each year of life of all the year classes of a sample and then averaged these lengths of corresponding years of all year classes. In this way some comparable general norms of growth of the herring of


. Bulletin of the United States Fish Commission. Fisheries -- United States; Fish-culture -- United States. LIFE HISTORY OF LAKE HERRING OF LAKE HURON 391 the calculated lengths of these fish, as shown in Table 59, are employed. In Table 59 are given the computed average lengths, as determined from measurements of scales, for each year of life. To obtain these averages, I computed the lengths for each year of life of all the year classes of a sample and then averaged these lengths of corresponding years of all year classes. In this way some comparable general norms of growth of the herring of the several localities are obtained. A variable error, due to the "apparent change in growth rate," is introduced into the averages by this method; but as each sample considered consists of approximately the same age groups, the. i^5. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original United States Fish Commission. Washington, The Commission, Govt. Print. Off


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