Blar i Department of Biological Sciences på emneord "Acoustics"
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Collective behaviour of herring during spawning
(Doctoral thesis, 2007-02-02)The thesis focuses on the collective behaviour of Norwegian spring spawning herring (NSS-herring; Clupea harengus L.) in the specific ecological context of reproduction. The major part of the work is based on field research ... -
Improved density measurements of mesopelagic fish and the presence of physonect siphonophores in sound scattering layers, measured with multifrequency acoustics and a stereo camera mounted on a lowered probe
(Master thesis, 2018-12-11)The mesopelagic layer is a massive layer of biomass which stretches from 200-1000 meters depth in almost all locations of the world oceans. These layers are inhabited by many groups of animals, from small zooplankton to ... -
Spatial distribution of Nile perch using acoustic methods
(Master thesis, 2010-08-03)Lake Victoria supports Africa's largest fishery, being Nile perch the main contributor for the fishery revenues. Alerts for decreases in the commercial catches of Nile perch were reported during the mid 1990s. According ...