During the Gulf of Maine acoustic experiment in the fall of 2006, massive shoals of Atlantic herring were instantaneously imaged over wide areas using an ocean acoustics waveguide remote sensing (OAWRS) system during evening to midnight hours over a period of 10 days from Sept. 26 to Oct. 5. The low frequency target strength (TS) and abundances of the herring population have been estimated by correlating the OAWRS data with localized measurements from a conventional fish finding sonar (CFFS) for 3 days from Oct. 1–3 [Gong et al., J. Acoust. Soc. Am. 124, 2586 (2008)]. Here we provide an analysis of the low frequency TS of the herring population in the frequency range from 300 to 1500 Hz and abundances for the remaining 7 days of the experiment. The acoustic scattering from herring populations is highly frequency dependent and is well modeled using a resonant scattering model for swimbladder bearing fish. Here we compare the TS estimates and the neutral buoyancy depth for herring over the observation period of 10 days.