White Sturgeon Life Cycle

A female sturgeon can release between 400000 and 4 million eggs.

White sturgeon life cycle. Adults reproductive Adults and Spawning. 1999 found that gravid females failed to ovulate at constant temperatures of 15 C and 18 C whereas females held at fluctuating normal seasonal temperatures 10-15 C ovulated and produced viable eggs. In captivity Webb et al.

These needs are discussed separately in the following sections. To complete their long lived life cycle white sturgeon require suitable habitats an abundant food base and appropriate flows and water conditions. There is no care provided to the eggs by the spawning sturgeon.

Sturgeon Life Cycle Directions. Life Cycle of the White Sturgeon Appendix 31 1. There has been almost no reproduction in the Kootenai River white sturgeon population since 1974.

Water temperature affects most aspects of the White Sturgeons metabolism and life cycle. The 40 days to 2 years stage is one in which young fish become less susceptible to predation and by one year old fish are often. Life Cycle of the White Sturgeon Appendix 31 1.

Spawning Age of Adults. Sturgeon can live to be up to 100 years old but in the Kootenai watershed they are not as long-lived. During the spawning process many males fertilize the same eggs communal broadcast spawning.

Sturgeon need to eat to survive like all other animals. Egg fertilization The first stage of the white sturgeon life cycle occurs when the female releases eggs into the water and the male sturgeon releases milt to fertilize them. However other reports have sexual maturity for white sturgeon at 12 and 10 years old for females and males.