Ikan Polyodon. The American paddlefish (Polyodon spathula) is a species of basal ray-finned fish closely related to sturgeons in the order Acipenseriformes. Polyodon spathula populations are most threatened by dams throughout the Mississippi River basin.
Polyodon spathula populations are most threatened by dams throughout the Mississippi River basin.
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Ikan ini termasuk ikan terbesar air tawar. The American paddlefish (Polyodon spathula) is a species of basal ray-finned fish closely related to sturgeons in the order Acipenseriformes. These cause a separation of American paddlefish populations which limits gene flow and thus genetic.