Blar i Published by IMR på emneord "VDP::Mathematics and natural science: 400::Physics: 430::Electromagnetism, acoustics, optics: 434"
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A unifying theory explaining different power budget formulations used in modern scientific echosounders for fish abundance estimation
(Fisken og Havet;7-2014, Research report, 2014-12-31)Acoustic methods used in fish abundance estimation constitute a key part of the analytic assessment that makes the basis for fisheries research and international regulations of marine resources. The methods rely on ... -
Aktiv forvaltning av marine verdier i kystsonen
(Research report, 2010-12) -
Akustikk og fiskeåtferd: korleis kan vi observera åtferd og kva finn vi ut?
(Conference object, 2010-09-15) -
Fitting observed fish trajectories to cathcability models
(Conference object, 2010-09-08) -
Mackerel behaviour and seismic signals - a pilot net pen study
(Rapport fra Havforskningen;19-2016, Working paper, 2016-04-28)English: A pilot study to investigate behavioural changes induced by sound exposure for mackerel was conducted in October 2015 at Austevoll research station. The main objective was to test the experimental set up, and ... -
Observing school dynamics in situ using acoustics
(Conference object, 2010-04) -
Sild skremmes ikke av fregattenes sonarer :: Herring are not frightened by frigate sonar
(Havforskningsnytt;Nr. 5 - 2012, Working paper, 2012)Den store bestanden av norsk vårgytende sild metter ikke bare millioner av mennesker, men er også mat for torsk, sel, spekkhogger og sjøfugl. Forsvarets nye fregatter er utstyrt med kraftige sonarer som potensielt kunne ... -
Sjå havet med nye øyre : Seing the sea with sound
(Havforskningsnytt;Nr. 10 - 2010, Working paper, 2010)Whales have developed an advanced biological sonar system that they can use to communicate between continents. They also use their sonar when hunting prey, and once a delicacy has been located, they can catch them in the ... -
Underwater sound measurements from fishing vessel "Brennholm"
(Working paper, 2011-08)A methodology for measuring underwater sound from free running vessels was implemented inside IMR, following American National Standard ANSI/ASA S12.64-2009 grade B. An array of 3 calibrated NEXUS hydrophones was mounted ...