Great Lake Sturgeon
Lake sturgeon are important members of coupled Great Lake-tributary ecosystems. Linkages between the Great Lakes and streams are explored in the context of the species’ use of different areas during. Current Status of Lake Sturgeon Lake sturgeon have experienced dramatic population declines over the past 100 years Over harvest Barriers to migration Loss of spawning habitat Current numbers. Lake sturgeon are the longest lived Great Lakes fish species and can attain ages up to 100 years. Lake sturgeon can grow to over 8 feet and weigh up to 300 pounds. The figure shows the locations and status of lake sturgeon populations in the Great Lakes. Researchers believe that lake sturgeon abundance and distribution is currently less than 1% of historical levels. Long term research programs are needed for lake sturgeon. The Black River system is uniquely suited to long-term research because of the system’s size and accessibility of fish and habitats.
We fertilized eggs from multiple sturgeon females and placed the eggs in flumes where water was allowed to flow at high (H), low (L) and variable (V) velocities. Click on the photo below to complete your lake sturgeon adoption today! Enter the 9 or 15 digit ID number in the field below to learn more about the capture history of your lake sturgeon in the upper. Below are data showing mean body length of lake sturgeon at hatch after incubation in water temperatures associated with different river temperatures during early, middle, and late portions of. Adult lake sturgeon spawn at different times during early (late April and early May), and later in May and early June. Adults spawning earlier in the season do so when the water temperatures are colder and.
Lake sturgeon release | FWS.gov
