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FA183: Sturgeon Aquaculture--Specialized Techniques: Determining the Sex of Sturgeon by Direct Examination of the Gonad Using a Minimally Invasive Surgical Procedure

Figure 3. a. Female gonad with oocytes within ovigerous folds and apposed (attached) adipose (fatty) tissue; surface will feel rough to the touch. b. Male testis without fatty tissue; note the distinctly white, lobe-like subdivisions; surface will feel smooth to the touch.

Credit: Frank A. Chapman and Joel P. Van Eenennaam