Bias in acoustic biomass estimates of Euphausia superba due to diel vertical migration

The diel vertical migration (DVM) of Antarctic krill ( Euphausia superba) can greatly bias the results of qualitative and quantitative hydroacoustic surveys which are conducted with a down-looking sonar and irrespective of the time of day. To demonstrate and quantify these negative biases on both th...

Ausführliche Beschreibung