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dc.contributor.authorBernardes, Ines Diaseng
dc.date.accessioned2010-09-07T08:30:37Z
dc.date.available2010-09-07T08:30:37Z
dc.date.issued2010-08-03eng
dc.date.submitted2010-08-03eng
dc.identifier.urihttp://hdl.handle.net/1956/4094
dc.description.abstractLake 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 to Kolding et al. (2008b), fish stocks are being affected mainly by eutrophication processes. The purpose of this work is to study if there is a relation between Nile perch spatial distribution and limnological data, in order to estimate the effects of enhanced eutrophication in the stock distribution. Acoustic data was used to obtain information on the Nile perch spatial distribution in association with limnological data (oxygen, chlorophyll a and temperature). Study limitations did not allow to conclude on relations between Nile perch densities and limnological data. However the results show a relation between Nile perch size and oxygen, and between Nile perch size and chlorophyll (for the three strata combined, as for the deep and inshore strata). Temperature showed to have no relation with fish size.en
dc.format.extent10434906 byteseng
dc.format.mimetypeapplication/pdfeng
dc.language.isoengeng
dc.publisherThe University of Bergeneng
dc.subjectNile percheng
dc.subjectLake Victoriaeng
dc.subjectAcousticseng
dc.subjectLimnological dataeng
dc.titleSpatial distribution of Nile perch using acoustic methodseng
dc.typeMaster thesiseng
dc.type.degreeMaster i Fiskeribiologi og forvaltningnob
dc.type.courseFIFOeng
dc.subject.nsiVDP::Matematikk og Naturvitenskap: 400::Basale biofag: 470 fiskeribiologi ernæringnob
dc.subject.archivecodeMastergradeng
dc.subject.nus759906eng
dc.type.programMAMN-FIFOeng
dc.rights.holderCopyright the author. All rights reserved
dc.rights.holderThe authoreng


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