Entomologist Ernest Bay has pinned his hopes on the little Cynolebias bellottii, or Argentine pearlfish.
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The pearlfish is impressive in numbers as well as appetite.
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He envisons the day when many of the intermittently flooded fields in the U.S. will be rich in pearlfish eggs.
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Bay obtained a small number of pearlfish two years ago and kept some in cages in a water-covered rice field, others in test tanks.
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More examples
Found living within the alimentary canals of e.g. sea cucumbers or between the shells of pearl oysters in or near shallow seagrass beds
Pearlfish is a general name for a variety of marine fish species in the Carapidae family. Pearlfish have been found in tropical waters of the Atlantic, Indian, and Pacific Oceans at depths up to along oceanic shelves and slopes.