Vis enkel innførsel

dc.contributor.advisorOdd Ivar, Lekang
dc.contributor.authorLevik, Kim
dc.coverage.spatialNorway, Bergennb_NO
dc.date.accessioned2017-08-08T12:40:10Z
dc.date.available2017-08-08T12:40:10Z
dc.date.issued2017-05-09
dc.identifier.urihttp://hdl.handle.net/11250/2450191
dc.description.abstractA water quality analysis was conducted at a recirculating aquaculture system (RAS) with Salmonbreed QTL PD smolt at Vik Settefisk AS, Bergen, Norway. The parameters oxygen (O2), carbon dioxide (CO2), Salinity, potential of hydrogen (pH), temperature, mortality were measured over 2 stages; Stage 1 being day 1 to day 22, and Stage 2 being from day 1 to day 122. Other parameters that measured and analysed during Stage 1 included Total ammonia nitrogen (TAN), Nitrite (NO2-N), Nitrate (NO3-N), Ammonia (NH+4), Alkalinity and Chemical oxygen demand (COD). Recommended thresholds found in published literature were compared to these results as well as the suppliers recommended limits for their system. The system was Module 17 intensive RAS run by Vik Settefisk AS in Øygården county, Bergen, Norway. According to the results, there w ere statistically significant differences between Temperature, CO2, Salinity and pH at Stage 1 and Stage 2 measuring data, however, the results remained within the published literature and the vendor guidelines for the Module RAS. Additionally, a blockage between the moving bed biofilm reactor (MBBR) and submerged fixed bed reactor (SBR) resulted in higher TAN, NO2-N, NO3-N in the SBR readings, however still within the recommended limits.nb_NO
dc.language.isoengnb_NO
dc.publisherNorwegian University of Life Sciences, Ås
dc.rightsNavngivelse 4.0 Internasjonal*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/deed.no*
dc.subjectRAS,Water quality comparisonnb_NO
dc.titleDocumentation of water quality in a water recycling system for aquaculture (RAS)nb_NO
dc.typeMaster thesisnb_NO
dc.description.versionsubmittedVersionnb_NO
dc.subject.nsiVDP::Agriculture and fishery disciplines: 900nb_NO
dc.source.pagenumber78nb_NO
dc.description.localcodeM-AAnb_NO
dc.description.localcode


Tilhørende fil(er)

Thumbnail

Denne innførselen finnes i følgende samling(er)

Vis enkel innførsel

Navngivelse 4.0 Internasjonal
Med mindre annet er angitt, så er denne innførselen lisensiert som Navngivelse 4.0 Internasjonal