Feasibility of hydroacoustic surveys of spawning aggregations for monitoring Barred Sand Bass populations off southern California by Larry G. Allen, Calvin Won, Derek G. Bolser, Brad E. Erisman

“…We tested the feasibility of using high resolution, split-beam sonar to estimate the distribution, abundance, and group sizes of Barred Sand Bass (Paralabrax nebulifer) at their primary spawning aggregation site off Huntington Beach, California, in July 2010 and July 2012. We established an in-situ target strength distribution for Barred Sand Bass using tethered fish, collected hydroacoustic data opportunistically over the entire spawning grounds, and validated acoustic data with concurrent video surveys and rod and reel sampling of fishes present within the survey area. …”
Get full text