Espen Johnsen
Espen Johnsen
Research Group Marine Ecosystem Acoustic, Institute of Marine Research
Verified email at
Cited by
Cited by
Acoustic identification of marine species using a feature library
RJ Korneliussen, Y Heggelund, GJ Macaulay, D Patel, E Johnsen, ...
Methods in Oceanography 17, 187-205, 2016
Marine ecosystem acoustics (MEA): quantifying processes in the sea at the spatio-temporal scales on which they occur
OR Godø, NO Handegard, HI Browman, GJ Macaulay, S Kaartvedt, ...
ICES Journal of Marine Science 71 (8), 2357-2369, 2014
An evaluation of the bottom trawl surveys in the B enguela Current Large Marine Ecosystem
BE Axelsen, E Johnsen
Fisheries Oceanography 24, 74-87, 2015
Size-dependent frequency response of sandeel schools
E Johnsen, R Pedersen, E Ona
ICES Journal of Marine Science 66 (6), 1100-1105, 2009
Diel variations in acoustic recordings of blue whiting (Micromesistius poutassou)
E Johnsen, OR Godø
ICES Journal of Marine Science 64 (6), 1202-1209, 2007
A robust method for generating separate catch time-series for each of the hake species caught in the Namibian trawl fishery
E Johnsen, J Kathena
African Journal of Marine Science 34 (1), 43-53, 2012
Dynamics of the pelagic component of Namibian hake stocks
T Iilende, T Strømme, E Johnsen
South African Journal of Marine Science 23 (1), 337-346, 2001
Factors affecting the diel variation in commercial CPUE of Namibian hake—Can new information improve standard survey estimates?
E Johnsen, T Iilende
Fisheries Research 88 (1-3), 70-79, 2007
A new model for simulating growth in fish
J Hamre, E Johnsen, K Hamre
PeerJ 2, e244, 2014
2007 Surveys of the living marine resources of Mozambique. Ecosystem survey and special studies. 27 September-21 December 2007
E Johnsen, JO Krakstad, M Ostrowski, B Serigstad, T Strømme, O Alvheim, ...
Institute of Marine Research, 2007
Escapement of Cape hakes under the fishing line of the Namibian demersal sampling trawl
T Jørgensen, A Engås, E Johnsen, T Iilende, P Kainge, P Schneider
African Journal of Marine Science 29 (2), 209-221, 2007
StoX: An open source software for marine survey analyses
E Johnsen, A Totland, Å Skålevik, AJ Holmin, GE Dingsør, E Fuglebakk, ...
Methods in Ecology and Evolution 10 (9), 1523-1528, 2019
Cabled ocean observatory data reveal food supply mechanisms to a cold-water coral reef
T Van Engeland, OR Godø, E Johnsen, GCA Duineveld, D van Oevelen
Progress in Oceanography 172, 51-64, 2019
Adaptive mass formations in fish shoals founded in conflicting motivation
E Johnsen, G Skaret
Marine Ecology Progress Series 358, 295-300, 2008
Small-scale spatial structuring of burrowed sandeels and the catching properties of the dredge
E Johnsen, A Harbitz
ICES Journal of Marine Science 70 (2), 379-386, 2013
Video image enhancement and machine learning pipeline for underwater animal detection and classification at cabled observatories
V Lopez-Vazquez, JM Lopez-Guede, S Marini, E Fanelli, E Johnsen, ...
Sensors 20 (3), 726, 2020
Foetal deformities in a smooth-hound shark, Mustelus mustelus, from an oil exploited area in Angola
D Zaera, E Johnsen
Cybium 35 (3), 231-236, 2011
Collective structures anchor massive schools of lesser sandeel to the seabed, increasing vulnerability to fishery
E Johnsen, G Rieucau, E Ona, G Skaret
Marine Ecology Progress Series 573, 229-236, 2017
Improving the precision of length frequency distribution estimates from trawl surveys by including spatial covariance—using Namibian Merluccius capensis as an example
E Johnsen
Fisheries research 62 (1), 7-20, 2003
Acoustic classification in multifrequency echosounder data using deep convolutional neural networks
O Brautaset, AU Waldeland, E Johnsen, K Malde, L Eikvil, AB Salberg, ...
ICES Journal of Marine Science, 2020
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