Abstract
The history of the development of shellfish hatcheries is summarized. Studies of the salinity, temperature, pH tolerances, and food requirements of clam and oyster larvae, as determined at the Milford laboratory, are cited to show the factors that govern the location and operation of successful shellfish hatcheries. Examples of how these requirements are met in presently operating commercial hatcheries are given. Some possible directions for future shellfish culture are suggested, using hatchery techniques for developing and utilizing new genetic strains of shellfish, and using newly‐developed predator control methods and improved shellfish farming practices.

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