Näytä suppeat kuvailutiedot

dc.contributor.authorEwane, Basil
dc.date.accessioned2010-08-08T16:02:47Z
dc.date.available2010-08-08T16:02:47Z
dc.date.issued2010
dc.identifier.otheroai:jykdok.linneanet.fi:1134747
dc.identifier.urihttps://jyx.jyu.fi/handle/123456789/24775
dc.description.abstractThe response to projected increase in dissolved organic carbon (DOC) loading to boreal lakes is being studied in lake Alinen Mustajärvi, a small humic lake in southern Finland, where labile DOC concentration has been artificially increased during 2008 and 2009 by monthly additions of cane sugar. As part of this wider project, in this thesis the responses of the zooplankton community to cane sugar addition were studied. Zooplankton samples were collected monthly in the ice-free periods of 2007, 2008 and 2009 and the mean densities and mean carbon biomasses of rotifers and crustacean zooplankton (cladocerans and copepods) were calculated. Stable isotope analyses (δ13C and δ15N) were made for the crustacean zooplankton samples. Zooplankton respond to additions of DOC by an appreciable increase in the mean density of rotifers and carbon biomass of copepods, while both the mean density and carbon biomass of cladocerans showed a decrease between years. Values for δ13C increased progressively across the years, especially for cladocerans, but less so for copepods. This suggests strongly that appreciable DOC from sugar additions was being transferred to zooplankton by heterotrophic bacteria and zooplankton dependence on heterotrophic bacteria appeared to increase with the increased loading of DOC in lake Alinen Mustajärvi.
dc.format.extent32 sivua
dc.language.isoeng
dc.rightsThis publication is copyrighted. You may download, display and print it for Your own personal use. Commercial use is prohibited.en
dc.rightsJulkaisu on tekijänoikeussäännösten alainen. Teosta voi lukea ja tulostaa henkilökohtaista käyttöä varten. Käyttö kaupallisiin tarkoituksiin on kielletty.fi
dc.subject.othercarbon biomass
dc.subject.othercladocera
dc.subject.othercopepoda
dc.subject.otherdissolved organic carbon
dc.subject.otherheterotrophic bacteria
dc.subject.otherrotifera
dc.subject.otherstable isotope analysis
dc.subject.otherzooplankton abundance
dc.subject.otherzooplankton community
dc.titleResponses of zooplankton to cane sugar additions to a small humic lake, Alinen Mustajärvi
dc.identifier.urnURN:NBN:fi:jyu-201008082417
dc.type.dcmitypeTexten
dc.type.ontasotPro gradufi
dc.type.ontasotMaster’s thesisen
dc.contributor.tiedekuntaMatemaattis-luonnontieteellinen tiedekuntafi
dc.contributor.tiedekuntaFaculty of Sciencesen
dc.contributor.laitosBio- ja ympäristötieteiden laitosfi
dc.contributor.laitosDepartment of Biological and Environmental Scienceen
dc.contributor.yliopistoUniversity of Jyväskyläen
dc.contributor.yliopistoJyväskylän yliopistofi
dc.contributor.oppiaineAkvaattiset tieteetfi
dc.contributor.oppiaineAquatic sciencesen
dc.rights.accesslevelopenAccessfi
dc.contributor.oppiainekoodi4012
dc.subject.ysojärvet
dc.subject.ysovesikirput
dc.subject.ysohankajalkaiset
dc.subject.ysobakteerit
dc.subject.ysoplankton


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Näytä suppeat kuvailutiedot