Spatially explicit estimates of length and biomass of Clupea harengus (Norweg...
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Acoustic estimates of herring and blue whiting abundance were obtained during the surveys using the Simrad ER60 scientific echosounder. The allocation of NASC-values to herring,...
本次渔业声学调查采用西姆拉德(Simrad)ER60科学回声测深仪,获取了鲱鱼与蓝鳕资源量的声学估算结果。将净声学后向散射截面(Net Acoustic Backscatter Cross-section,简称NASC)值分配至鲱鱼……



