Joel P. Van Eenennaam

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California’s Sacramento River mainstem was previously the only known spawning area for the Southern Distinct Population Segment of North American green sturgeon, Acipenser medirostris. Our study provides the first documentation of green sturgeon spawning in the Feather River, a major tributary of the Sacramento River. Egg mats were used to sample two lower(More)
Section 4 of the Federal Endangered Species Act requires the designation of critical habitat for threatened and endangered species. This report contains a biological assessment in support of a final critical habitat designation for the threatened Southern Distinct Population Segment of North American green sturgeon (Acipenser medirostris; hereafter, "(More)
Assessing stage of oocyte maturity in female sturgeon by calculating oocyte polarization index (PI) is a necessary tool for both conservation propagation managers and caviar producers to know when to hormonally induce spawning. We tested the assumption that sampling ovarian follicles from one section of one ovary is sufficient for calculating an oocyte PI(More)
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