{"data":{"id":226664,"slug":"doktorand-i-arktisk-sotvattenekologi","type":"job","title":"PhD Student in Arctic Freshwater Ecology","description":"Department of Water and Environment\nDoctoral subject:\nBiology with specialization in Ecology\nDescription of the PhD project:\nThe overall aim of this PhD project is to understand how climate-driven changes in vegetation cover and winter conditions affect habitats and food webs in arctic and alpine lakes. Climate change promotes the expansion of terrestrial vegetation, which increases nutrient binding in arctic and alpine landscapes and contributes to a long-term reduction in nutrient supply to lakes (so-called oligotrophication). Simultaneously, altered winter conditions\u2014such as shorter periods of ice cover and increased snow cover\u2014change the availability of light for primary production and oxygen availability for aquatic organisms during winter. The project will use a methodology where spatial differences are used as surrogates for temporal changes (\"space-for-time\" approach) to: (i) assess the effects of lake oligotrophication and altered winter conditions on benthic biofilm communities in different lake environments; (ii) evaluate the consequences of changed biofilm composition for production and transfer of health-promoting biomolecules (i.e., essential polyunsaturated fatty acids, PUFA) versus harmful biomolecules (i.e., cyanotoxins) to higher trophic levels, including fish; and (iii) quantify the extent to which oligotrophication and altered winter conditions affect food webs in arctic and alpine lakes, including consumers' diet composition, the relative importance of benthic versus pelagic energy pathways, and food chain length.\nWork tasks:\nThe PhD student will work within an international consortium with collaborative partners from both the Nordic region and North America. The project will utilize samples and data collected from arctic and alpine lakes in Sweden and other circumpolar regions. Implementation includes, among other things:\nSeasonal sampling of food web components, from primary producers to fish, under both ice-free conditions (summer) and under ice cover (winter).\nAnalysis of biomarkers (PUFA and cyanotoxins) in biological samples using chromatographic techniques.\nIntegration and compilation of previously collected data with newly gathered data on fatty acids, cyanotoxins, and stable isotopes.\nApplication of Bayesian mixing models to investigate consumer diet composition and food web flows.\n\nEligibility:\nBasic eligibility is held by those who have completed a degree at an advanced level, fulfilled course requirements of at least 240 credit points (hp), of which at least 60 hp at advanced level, or who in another way within or outside the country have acquired substantially equivalent knowledge (the Swedish Higher Education Ordinance, Chapter 7 \u00a7 39).\nSpecific eligibility for admission to doctoral studies in Biology with specialization in Ecology is held by those with knowledge corresponding to at least 90 higher education credit points (hp) in biological subjects. These must include an independent work and at least 30 hp must be at advanced level.\nFurthermore, you must have English language skills equivalent to a passing grade in English B\/6 from Swedish upper secondary school.\nYour background:\nApplicants should have a degree in aquatic ecology, limnology, ecology, or equivalent. Experience with biological sampling during winter in ice-covered lakes is highly meritorious. Good knowledge of statistical analysis, experience with scientific publishing, and very good ability to express yourself in Swedish orally and in writing are meritorious. Knowledge of aquatic food webs (e.g., algae, macroinvertebrates, zooplankton, fish), arctic ecology, and\/or biogeochemistry is advantageous. Experience with relevant methods for biological sampling and analysis of biomarkers is also meritorious. Great weight will also be placed on personal qualities, such as ability for critical thinking, problem-solving skills, and ability to work both independently and in groups. Good knowledge of English orally and in writing as well as a valid driving license in Sweden are required.\nAbout us:\nThe Department of Water and Environment is a center of excellence for applied environmental research with national responsibility for monitoring the environmental status of Swedish lakes and watercourses with respect to water chemistry, environmental contaminants, and aquatic biota. Research at the department focuses on geochemical and hydrological processes, aquatic ecology and biodiversity, microbial ecology, and environmental chemistry and aquatic ecotoxicology. The department has over 150 employees, of which approximately half are researchers\/PhD students and the other half are technical and administrative staff.\nMore information about the department: http:\/\/www.slu.se\/vatten-miljo\nRead more about our benefits and what it is like to work at SLU at https:\/\/www.slu.se\/om-slu\/jobba-pa-slu\/\nRead more about SLU's doctoral education at http:\/\/www.slu.se\/utbildning\/program-kurser\/forskarutbildning\/.\nEmployment form and salary:\nEmployment as a PhD student (4 years of education).\nThe salary for PhD employment follows local collective agreements with fixed salary steps.\nExtent:\n100%\nLocation:\nUppsala\nStart date:\nDecember 2026.\nApplication and selection:\nWelcome to submit your application via the application button below by 2026-10-12.\nRead more about the attachments your application should contain at https:\/\/www.slu.se\/utbildning\/studera\/forskarutbildning\/hur-kan-jag-bli-doktorand\/ansokan-och-bilagor\/\nSelection among eligible applicants is made based on the attachments included in the application and will be made with consideration to the ability to complete the education within the set time.\nTrade union contact persons\nhttps:\/\/internt.slu.se\/min-anstallning\/facket\/kontaktpersoner\/\nSwedish University of Agricultural Sciences (SLU) has a key role in development toward sustainable living, grounded in science and education. Through our focus on the interactions between people, animals, and ecosystems and responsible stewardship of natural resources, we contribute to sustainable social development and good living conditions on our planet. Main locations are Alnarp, Ume\u00e5, and Uppsala, but operations are also conducted at research stations, experimental farms, and educational facilities throughout the country. SLU has over 4,000 employees, 6,000 students and graduate students, and a turnover exceeding 4.5 billion kronor. The university invests in attractive environments at its campus areas. We work for an equal and inclusive work environment where open dialogue between people with different experiences lays the foundation for scientific rigor, creativity, and development. We therefore welcome people with different backgrounds and perspectives to apply for this position.","language":"sv","is_translated":true,"title_original":"Doktorand i arktisk s\u00f6tvattenekologi","description_original":"Institutionen f\u00f6r vatten och milj\u00f6\nForskarutbildnings\u00e4mne:\nBiologi inriktning ekologi\nBeskrivning av doktorandprojektet:\nDet \u00f6vergripande syftet med detta doktorandprojekt \u00e4r att f\u00f6rst\u00e5 hur klimatdrivna f\u00f6r\u00e4ndringar i vegetationst\u00e4cke och vinterf\u00f6rh\u00e5llanden p\u00e5verkar livsmilj\u00f6er och n\u00e4ringsv\u00e4var i arktiska och alpina sj\u00f6ar. Klimatf\u00f6r\u00e4ndringar gynnar utbredningen av landvegetation, vilket \u00f6kar n\u00e4ringsbindningen i arktiska och alpina landskap och bidrar till en l\u00e5ngsiktig minskning av n\u00e4ringstillf\u00f6rseln till sj\u00f6ar (s\u00e5 kallad oligotrofiering). Samtidigt f\u00f6r\u00e4ndrar \u00e4ndrade vinterf\u00f6rh\u00e5llanden \u2013 s\u00e5som kortare perioder med ist\u00e4cke och \u00f6kat sn\u00f6t\u00e4cke \u2013 tillg\u00e5ngen p\u00e5 ljus f\u00f6r prim\u00e4rproduktion samt syretillg\u00e5ngen f\u00f6r vattenlevande organismer under vintern. Projektet kommer att anv\u00e4nda en metodik d\u00e4r rumsliga skillnader anv\u00e4nds som surrogat f\u00f6r tidsm\u00e4ssiga f\u00f6r\u00e4ndringar (\"space-for-time\"-ansats) f\u00f6r att: (i) bed\u00f6ma effekterna av sj\u00f6oligotrofiering och f\u00f6r\u00e4ndrade vinterf\u00f6rh\u00e5llanden p\u00e5 bentiska biofilmsamh\u00e4llen i olika sj\u00f6milj\u00f6er; (ii) utv\u00e4rdera konsekvenserna av f\u00f6r\u00e4ndrad sammans\u00e4ttning i biofilmen f\u00f6r produktion och \u00f6verf\u00f6ring av h\u00e4lsofr\u00e4mjande biomolekyler (dvs. essentiella flerom\u00e4ttade fettsyror, PUFA) kontra skadliga biomolekyler (dvs. cyanotoxiner) till h\u00f6gre trofiska niv\u00e5er, inklusive fisk; samt (iii) kvantifiera i vilken utstr\u00e4ckning oligotrofiering och f\u00f6r\u00e4ndrade vinterf\u00f6rh\u00e5llanden p\u00e5verkar n\u00e4ringsv\u00e4var i arktiska och alpina sj\u00f6ar, inklusive konsumenters f\u00f6doval, den relativa betydelsen av bentiska kontra pelagiska energiv\u00e4gar samt n\u00e4ringskedjans l\u00e4ngd.\nArbetsuppgifter:\nDoktoranden kommer att arbeta inom ett internationellt konsortium med samarbetspartners fr\u00e5n b\u00e5de Norden och Nordamerika. Projektet kommer att utnyttja prover och data insamlade fr\u00e5n arktiska och alpina sj\u00f6ar i Sverige och andra cirkumpol\u00e4ra regioner. Genomf\u00f6randet omfattar bland annat:\nS\u00e4songsbaserad provtagning av komponenter i n\u00e4ringsv\u00e4ven, fr\u00e5n prim\u00e4rproducenter till fisk, under s\u00e5v\u00e4l isfria f\u00f6rh\u00e5llanden (sommar) som under ist\u00e4cke (vinter).\nAnalys av biomark\u00f6rer (PUFA och cyanotoxiner) i biologiska prover med hj\u00e4lp av kromatografiska tekniker.\nIntegrering och sammanst\u00e4llning av tidigare data med nyinsamlade data om fettsyror, cyanotoxiner och stabila isotoper.\nTill\u00e4mpning av Bayesianska blandningsmodeller f\u00f6r att unders\u00f6ka konsumenters f\u00f6doval och fl\u00f6den i n\u00e4ringsv\u00e4ven.\n\nBeh\u00f6righet:\nGrundl\u00e4ggande beh\u00f6righet har den som har avlagt en examen p\u00e5 avancerad niv\u00e5, fullgjort kursfordringar om minst 240 hp, varav minst 60 hp p\u00e5 avancerad niv\u00e5, eller som p\u00e5 annat s\u00e4tt inom eller utom landet har f\u00f6rv\u00e4rvat i huvudsak motsvarande kunskaper (h\u00f6gskolef\u00f6rordningen, kap. 7 \u00a7 39).\nS\u00e4rskild beh\u00f6righet att antas till forskarutbildningen i \u00e4mnet Biologi inriktning ekologi har den som kunskaper motsvarande minst 90 h\u00f6gskolepo\u00e4ng (hp) i biologiska \u00e4mnen. Dessa skall inkludera ett sj\u00e4lvst\u00e4ndigt arbete och minst 30 hp ska vara p\u00e5 avancerad niv\u00e5.\nDessutom kr\u00e4vs att du har kunskaper i Engelska som motsvarar godk\u00e4nt betyg i Engelska B\/6 fr\u00e5n svenskt gymnasium.\nDin bakgrund:\nS\u00f6kande ska ha en examen inom akvatisk ekologi, limnologi, ekologi eller motsvarande. Erfarenhet av biologisk provtagning vintertid i isslagda sj\u00f6ar \u00e4r mycket meriterande. Goda kunskaper i statistisk analys, erfarenhet av vetenskaplig publicering samt mycket god f\u00f6rm\u00e5ga att uttrycka sig p\u00e5 svenska i tal och skrift \u00e4r meriterande. Kunskaper om akvatiska n\u00e4ringsv\u00e4var (t.ex. alger, makroinvertebrater, djurplankton, fisk), arktisk ekologi och\/eller biogeokemi \u00e4r f\u00f6rdelaktigt. Erfarenhet av relevanta metoder f\u00f6r biologisk provtagning och av analys av biomark\u00f6rer \u00e4r ocks\u00e5 meriterande. Stor vikt kommer \u00e4ven att l\u00e4ggas vid personliga egenskaper, s\u00e5som f\u00f6rm\u00e5ga till kritiskt t\u00e4nkande, probleml\u00f6sningsf\u00f6rm\u00e5ga samt f\u00f6rm\u00e5ga att arbeta b\u00e5de sj\u00e4lvst\u00e4ndigt och i grupp. Goda kunskaper i engelska i tal och skrift samt k\u00f6rkort giltigt i Sverige kr\u00e4vs.\nOm oss:\nInstitutionen f\u00f6r vatten och milj\u00f6 \u00e4r ett kompetenscentrum f\u00f6r till\u00e4mpad milj\u00f6forskning med ett nationellt ansvar f\u00f6r \u00f6vervakning av milj\u00f6tillst\u00e5ndet i svenska sj\u00f6ar och vattendrag med avseende p\u00e5 vattenkemi, milj\u00f6f\u00f6rorening och akvatisk biota. Forskningen vid institutionen fokuserar p\u00e5 geokemiska och hydrologiska processer, akvatisk ekologi och biodiversitet, mikrobiell ekologi samt milj\u00f6kemi och akvatisk ekotoxikologi. Institutionen har drygt 150 anst\u00e4llda varav ca h\u00e4lften utg\u00f6rs av forskare\/doktorander och den andra h\u00e4lften av teknisk och administrativ personal.\nMer information om institutionen: http:\/\/www.slu.se\/vatten-miljo\nL\u00e4s mer om v\u00e5ra f\u00f6rm\u00e5ner och hur det \u00e4r att jobba inom SLU p\u00e5 https:\/\/www.slu.se\/om-slu\/jobba-pa-slu\/\nL\u00e4s mer om SLU:s forskarutbildning p\u00e5 http:\/\/www.slu.se\/utbildning\/program-kurser\/forskarutbildning\/.\nF\u00f6rs\u00f6rjningsform och l\u00f6n:\nAnst\u00e4llning som doktorand (4 \u00e5rs utbildning).\nL\u00f6nen f\u00f6r doktorandanst\u00e4llningen f\u00f6ljer lokalt kollektivavtal med fasta l\u00f6nesteg.\nOmfattning:\n100%\nPlacering:\nUppsala\nTilltr\u00e4de:\nDecember 2026.\nAns\u00f6kan och urval:\nV\u00e4lkommen med din ans\u00f6kan via ans\u00f6kningsknappen nedan senast 2026-10-12.\nL\u00e4s mer om de bilagor som din ans\u00f6kan ska inneh\u00e5lla p\u00e5 https:\/\/www.slu.se\/utbildning\/studera\/forskarutbildning\/hur-kan-jag-bli-doktorand\/ansokan-och-bilagor\/\nUrval bland beh\u00f6riga s\u00f6kande sker baserat p\u00e5 de bilagor som bifogas i ans\u00f6kan, och ska g\u00f6ras med h\u00e4nsyn till f\u00f6rm\u00e5ga att slutf\u00f6ra utbildningen inom utsatt tid.\nFackliga kontaktpersoner\nhttps:\/\/internt.slu.se\/min-anstallning\/facket\/kontaktpersoner\/\nSveriges lantbruksuniversitet (SLU) har en nyckelroll i utvecklingen f\u00f6r h\u00e5llbart liv, grundad i vetenskap och utbildning. Genom v\u00e5rt fokus p\u00e5 samspelen mellan m\u00e4nniska, djur och ekosystem och ett ansvarsfullt brukande av naturresurserna bidrar vi till en h\u00e5llbar samh\u00e4llsutveckling och goda livsvillkor p\u00e5 v\u00e5r planet. Huvudorter \u00e4r Alnarp, Ume\u00e5 och Uppsala, men verksamhet bedrivs ocks\u00e5 p\u00e5 forskningsstationer, f\u00f6rs\u00f6ksparker och utbildningsorter i hela landet. SLU har drygt 4000 medarbetare, 6000 studenter och forskarstuderande och en oms\u00e4ttning p\u00e5 \u00f6ver 4,5 miljarder kronor. Universitetet satsar p\u00e5 attraktiva milj\u00f6er p\u00e5 sina campusomr\u00e5den. Vi arbetar f\u00f6r en j\u00e4mst\u00e4lld och inkluderande arbetsmilj\u00f6 d\u00e4r \u00f6ppna samtal mellan m\u00e4nniskor med olika erfarenheter l\u00e4gger grunden f\u00f6r vetenskaplighet, kreativitet och utveckling. Vi v\u00e4lkomnar d\u00e4rf\u00f6r personer med olika bakgrunder och perspektiv att s\u00f6ka den aktuella anst\u00e4llningen.","available_locales":["en"],"price":null,"currency":"SEK","status":"active","noindex":true,"location":{"address":null,"full_address":null,"city":"Uppsala","country":"SE","latitude":59.8520701,"longitude":17.7188369},"metadata":{"region":"Uppsala l\u00e4n","duration":"6 m\u00e5nader eller l\u00e4ngre","employer":"Sveriges Lantbruksuniversitet","postcode":"75007","positions":1,"profession":"Doktorand","salary_type":"Fast m\u00e5nads- vecko- eller timl\u00f6n","employer_url":"https:\/\/www.slu.se\/","scope_of_work":"100\u2013100 %","working_hours":"Heltid","contact_person":"Danny Lau","driving_license":true,"employment_type":"full_time","occupation_field":"Pedagogik","employer_workplace":"Sveriges Lantbruksuniversitet (SLU)","experience_required":true,"employment_type_label":"Vanlig anst\u00e4llning"},"user_id":null,"is_sponsored":false,"views_count":2,"ai_views_count":3,"bot_views_count":2,"ai_vendor_counts":{"other":1,"anthropic":2},"visibility":"public","submission_source":null,"submission_ai_name":null,"has_owner_email":true,"can_contact_owner":true,"phone":"+4618672462","owner_email":"danny.lau@slu.se","images":[],"published_at":"2026-09-22T11:00:33+00:00","expires_at":"2026-10-12T23:59:59+00:00","created_at":"2026-09-23T04:09:47+00:00","updated_at":"2026-09-27T03:11:51+00:00"}}