Passive acoustic records of Lake Sturgeon calling activity in Detroit River

Dennis Higgs & Riley Beach
Lake sturgeon (Acipenser fulvescens) are endangered in the Laurentian Great Lakes with increasing binational efforts to establish spawning grounds to aid restoration. While SCUBA surveys can document spawning activity, these are labour-intensive and may disrupt spawning. We used passive acoustic monitoring to quantify spawning sounds of lake sturgeon as a first step to developing remote sensing of sturgeon spawning grounds. Acipenser sp. are known to make a variety of sounds including, “thunders” (aka drums), which...
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2 downloads reported since publication in 2021.

These counts follow the COUNTER Code of Practice, meaning that Internet robots and repeats within a certain time frame are excluded.
What does this mean?