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Helge Balk
Helge Balk
University of Oslo - Department of Physics
Correu electrònic verificat a fys.uio.no - Pàgina d'inici
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Target strength of some European fish species and its dependence on fish body parameters
J Frouzova, J Kubecka, H Balk, J Frouz
Fisheries Research 75 (1-3), 86-96, 2005
1822005
Use of high-frequency imaging sonar (DIDSON) to observe fish behaviour towards a surface trawl
G Rakowitz, M Tušer, M Říha, T Jůza, H Balk, J Kubečka
Fisheries Research 123, 37-48, 2012
1022012
Sonar4 and Sonar5-Pro post processing systems
H Balk, T Lindem
Operator manual 5 (7), 2007
992007
Improved fish detection in data from split-beam sonar
H Balk, T Lindem
Aquatic Living Resources 13 (5), 297-303, 2000
872000
Can acoustic shadows identify fish species? A novel application of imaging sonar data
MC Langkau, H Balk, MB Schmidt, J Borcherding
Fisheries Management and Ecology 19 (4), 313-322, 2012
792012
The acoustic target strength of herring (Clupea harengus L.) in the northern Baltic Sea
H Peltonen, H Balk
ICES Journal of Marine Science 62 (4), 803-808, 2005
492005
Sonar4 and Sonar5-Pro post processing systems: operator manual version 6.0. 2
H Balk, T Lindem
Lindem Data Acquisition A/S, Oslo, Norway, 2013
472013
Echo‐sounding can discriminate between fish and macroinvertebrates in fresh water
J Jurvelius, FR Knudsen, H Balk, TJ Marjomäki, H Peltonen, J Taskinen, ...
Freshwater Biology 53 (5), 912-923, 2008
462008
Development of hydroacoustic methods for fish detection in shallow water
H Balk
Faculty of Mathematics and Natural Science, University of Oslo, 2001
462001
Evaluation of potential bias in observing fish with a DIDSON acoustic camera
M Tušer, J Frouzová, H Balk, M Muška, T Mrkvička, J Kubečka
Fisheries Research 155, 114-121, 2014
452014
Fish hydroacoustic survey standardization: A step forward based on comparisons of methods and systems from vertical surveys of a large deep lake
V Draštík, M Godlewska, H Balk, P Clabburn, J Kubečka, E Morrissey, ...
Limnology and Oceanography: Methods 15 (10), 836-846, 2017
402017
Acoustic characterization of Mysis relicta at multiple frequencies
LG Rudstam, FR Knudsen, H Balk, G Gal, BT Boscarino, T Axenrot
Canadian Journal of Fisheries and Aquatic Sciences 65 (12), 2769-2779, 2008
352008
Sonar 4, Sonar 5, Sonar 6–Post-processing Systems
H Balk, T Lindem
Operator Manual. University of Oslo, Norway, 427, 2006
352006
Sonar4 and Sonar5-Pro post processing systems (operation manual)
H Balk, T Lindem
Lindem Data Acquisition, Oslo, 2005
302005
Comparing hydroacoustic fish stock estimates in the pelagic zone of temperate deep lakes using three sound frequencies (70, 120, 200 kHz)
J Guillard, A Lebourges-Daussy, H Balk, M Colon, A Jóźwik, ...
Inland Waters 4 (4), 435-444, 2014
282014
Sonar4, Sonar5, Sonar6 post processing systems, operator manual version (5.9. 6)
H Balk, T Lindem
SIMRAD: Oslo, Norway, 2006
272006
Including 38 kHz in the standardization protocol for hydroacoustic fish surveys in temperate lakes
A Mouget, C Goulon, T Axenrot, H Balk, A Lebourges‐Dhaussy, ...
Remote sensing in ecology and conservation 5 (4), 332-345, 2019
252019
Sonar4 and Sonar5-Pro Post Processing Systems, Operator Manual, Version 5.9. 7
H Balk, T Lindem
Balk and Lindem Data Acquisition, Oslo, Norway, 2007
202007
Sonar4 and Sonar 5-Pro, Post Processing System, Operator Manual v5. 9.3
H Balk, T Lindem
Lindem Data acquisition. Norway, 2004
192004
A novel upward-looking hydroacoustic method for improving pelagic fish surveys
R Baran, T Jůza, M Tušer, H Balk, P Blabolil, M Čech, V Draštík, ...
Scientific reports 7 (1), 4823, 2017
182017
En aquests moments el sistema no pot dur a terme l'operació. Torneu-ho a provar més tard.
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