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SRAC# 469

Fertilization of Fish Fry Ponds

Gerald M. Ludwig, Nathan M. Stone and Charles “Bo” Collins


Opening Paragraph:
Fish farmers fertilize fry ponds to increase the amount of suitable natural foods for young fish. Applying fertilizer stimulates the production of organisms that serve as the first foods for many species of fish and increases fry survival and growth. Fertilization also causes the water to develop a "bloom", a turbid, green to brown color caused by microscopic organisms called phytoplankton (plants) and zooplankton (animals). The bloom shades the pond bottom and helps prevent the growth of aquatic weeds.
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