A crowd gathered this week on the stony shore of the Wolf River, hoping to catch a glimpse of an entirely different crowd assembling below the murky water. Three men with nets stood quietly on the rocks in ankle-deep water and watched for movement below the surface. Many of the spectators held up cameras and cellphones as the sturgeon was marched down the shore to be measured and tagged. The fish would soon be nudged down a small ramp and released back to the river. The entire process took but a few minutes, then repeated again and again. Ryan Koenigs, a sturgeon biologist with the state Department of Natural Resources, took measurements and helped tag dozens of fish at the Wolf River Sturgeon Trail, located a few miles from New London. The sturgeon were in New London and Shiocton and the sturgeon should start flowing at the dam in Shawano by today with spawning taking place too because the temperatures continue to warm the waters of the Wolf River.