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Ultrasound imagery of stage-4/5 adult female pallid sturgeon

By Columbia Environmental Research Center
Ultrasound imagery of stage-4/5 adult female pallid sturgeon that will be ready to spawn during the coming spring
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Detailed Description

Ultrasound imagery of stage-4/5 adult female pallid sturgeon that will be ready to spawn during the coming spring (arrows indicate presence of oocytes [eggs]).  Side view (left) and abdominal view (right).

Sources/Usage

Public Domain.