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Culturing, Harvesting, and Grading 'Daphnia'

机译:培养,收获和评级'水蚤'

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摘要

Daphnia were intensively cultured in small, concrete ponds at Lamar, Pennsylvania to be used as live food for walleye and American shad fry. The culture, collecting, and grading systems and techniques are described in the report.

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