Browsing SINTEF Open by Author "Pascal, Klebert"
Now showing items 1-9 of 9
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Abundance of sea lice larvae in plankton samples: determination of optimal sample sizes
Fernandez-Gonzalez, Victoria; Ulvan, Eva Marita; Sanchez-Jerez, P.; Diserud, Ola Håvard; Toledo-Guedes, Kilian; Casado-Coy, Nuria; Pascal, Klebert; Uglem, Ingebrigt (Peer reviewed; Journal article, 2022)Sea lice infestations have been a major problem for the global salmon farming industry for several decades. To date, few studies have addressed the measurement of lice abundance in plankton samples and a standardized method ... -
Characteristic current flow through a stocked conical sea-cage with permeable lice shielding skirt
Jonsdottir, Kristbjørg Edda; Pascal, Klebert; Volent, Zsolt; Alfredsen, Jo Arve (Peer reviewed; Journal article, 2021)The characteristic current flow field around a 55 m deep full-scale stocked conical Atlantic salmon sea-cage equipped with a 10 m permeable skirt was studied experimentally using acoustic Doppler velocimeters and profilers. ... -
Critical swimming speed in groups of Atlantic salmon Salmo salar
Remen, Mette; Solstorm, Frida; Bui, Samantha; Pascal, Klebert; Vågseth, Tone; Solstorm, David; Hvas, Malthe; Oppedal, Frode (Journal article; Peer reviewed, 2016-12-08)Critical swimming speed (Ucrit) has traditionally been measured in relatively small swimming tunnels with 1 fish alone. However, both increased flume lengths and swimming in groups are known to improve performance. Atlantic ... -
Live transport of Atlantic salmon in open and closed systems: Water quality, stress and recovery
Erikson, Ulf Gøran; Rosten, Carolyn; Pascal, Klebert; Aspaas, Stian; Rosten, Trond Waldemar (Peer reviewed; Journal article, 2022)The goal of the study was to compare open and closed transports of adult Atlantic salmon in terms of water quality and stress (blood chemistry and white muscle biochemistry). The study comprised of two phases: (i) live ... -
Loads and response on flexible conical and cylindrical fish cages: A numerical and experimental study based on full-scale values
Endresen, Per Christian; Pascal, Klebert (Journal article; Peer reviewed, 2020-11-15)This paper presents drag forces from uniform water current on two flexible net cage designs, commonly used in Norwegian fish farming, obtained through model-scale testing and numerical simulations. The primary focus is on ... -
Multiscale modelling of cage effects on the transport of effluents from open aquaculture systems
Broch, Ole Jacob; Pascal, Klebert; Michelsen, Finn Are; Alver, Morten (Journal article; Peer reviewed, 2020-03-23)Most Atlantic salmon mariculture operations use open sea cages for the grow out phase. The ultimate fate and effects of the effluents and the possibilities of disease transfer between fish farms are major concerns for ... -
Response of Atlantic salmon in flexible sea cages to waves and currents: Measurements at farm-level and modeling
Pascal, Klebert; Su, Biao; Nissen, Oscar; Kvæstad, Bjarne (Peer reviewed; Journal article, 2023)The shift towards salmon farming in more exposed locations has been an industry-wide trend for the last decade. Moving fish farms to locations with high water currents and waves can improve production by providing more ... -
Turbulence and flow field alterations inside a fish sea cage and its wake
Pascal, Klebert; Su, Biao (Journal article; Peer reviewed, 2020-05)Measurements were performed inside and in the wake of a commercial salmon sea cage. The key instrumentation included the following: sea bottom-mounted acoustic Doppler current profilers providing continuous concurrent flow ... -
Waves and currents decrease the available space in a salmon cage
Johannesen, Ása; Patursson, Øystein; Kristmundsson, Jóhannus; Pætursonur Dam, Signar; Mulelid, Mats; Pascal, Klebert (Peer reviewed; Journal article, 2022)Due to increasing demand for salmon and environmental barriers preventing expansion in established sites, salmon farmers seek to move or expand their production to more exposed sites. In this study we investigate the effects ...