Browsing Brage IMR by Author "Johnsen, Espen"
Now showing items 41-42 of 42
-
Video Image Enhancement and Machine Learning Pipeline for Underwater Animal Detection and Classification at Cabled Observatories
Lopez-vazquez, Vanesa; Lopez-guede, Jose Manuel; Marini, Simone; Fanelli, Emanuela; Johnsen, Espen; Aguzzi, J. (Peer reviewed; Journal article, 2020)An understanding of marine ecosystems and their biodiversity is relevant to sustainable use of the goods and services they offer. Since marine areas host complex ecosystems, it is important to develop spatially widespread ... -
When acoustics is not enough – towards a measurement of sandeel availability
Johnsen, Espen; Harbitz, Alf (ICES CM documents;2009/I:16, Working paper, 2009)Experimental surveys in the peak feeding season of sandeel (April-May) show that the abundance and geographical distribution of schooling lesser sandeels (Ammodytes marinus) can be acoustically measured, but the density ...