Job Announcements

Job Announcements

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Postdoctoral position in Ecology of anaerobic microbial communities
Position type: Postdoctoral position
Location: Swedish University of Agricultural Sciences (Sweden)
Application deadline: 2020-06-30
Duties:
The position will be embedded in a dynamic and new research group in aquatic microbial ecology and biogeochemistry. We study microorganisms and their processes in lakes and other aquatic ecosystems using a combination of molecular, cellular and isotope tracer methods. Tools such as large-scale metagenome sequencing and single cell analyses are frequently used and the research include both field work and controlled laboratory experiments. Current focal areas are microbial carbon, nitrogen and mercury transformation while we also have ongoing research in polar microbiology, deep biosphere exploration and studies of host-associated microorganisms and symbioses.
The postdoc will have a central role in an international collaborative research project to study the feed-microbiome-host axis in fish but will also have opportunities to participate in other projects on sediment and wetland microbial systems. With Atlantic salmon as our model system, we will use single cell genomics, metagenome and metatranscriptome sequencing, metabolite analyses and metabolic modeling to learn more about the fish gut microbiome and its impacts on the host. As a postdoc you will engage in independent research, but do so as part of a local and internationally distributed team of expert scientists. You will be able to influence the study design and will get to report the work in scientific publications. There will also be opportunities to train and learn new techniques and to supervise student projects.

Qualifications:
The successful candidate must have a solid training and PhD or equivalent degree in biology, bioengineering or related subjects, with strong merits in microbiology and/or environmental genomics. The candidate must have documented experience and knowledge sufficient for using modern DNA/RNA-based methods to analyze complex microbial communities. More advanced training and skills in biochemistry, systems biology or bioinformatics will strengthen your application. Proficiency in English (both written and spoken) is required, as is demonstrated ability to effectively and clearly communicate research results in scientific publications.
As postdoctoral appointments are career-developing positions for junior researchers, we are primarily looking for candidates with a doctoral degree that is three years old at most.

Place of work:
Uppsala, Sweden

Form of employment:
Temporary employment, 24 months

Application:
We welcome your application no later than 2020-06-30.

For further information, please click here.Open
Researcher – Microbial ecology and diversity in inland waters
Position type: Researcher
Location: Swedish University of Agricultural Sciences (Sweden)
Application deadline: 2020-06-30
Duties:
The researcher will join a dynamic new research group in aquatic microbial ecology and biogeochemistry. We study microorganisms and their processes in lakes and other aquatic ecosystems using a combination of molecular, cellular and isotope tracer methods. Tools such as large-scale metagenome sequencing, single cell analyses and advanced analytical chemistry approaches are frequently used and the research include both field work and controlled laboratory experiments. Current focal areas are microbial carbon, nitrogen and mercury transformation while we also have ongoing research in polar microbiology, deep biosphere exploration and studies of host-associated microorganisms and symbioses.
For this position we are looking for an early career researcher to take a central role in our ongoing efforts to understand microbial community interactions and diversity in freshwater ecosystems. The approach will be based on a combination of field work and controlled laboratory experiments with model populations of microeukaryotes, bacteria and their phages. Advanced metagenome and metatranscriptome analyses of microbial communities will be major analytical tools for the researcher, along with fluorescence microscopy and other single cell methods. The researcher will enjoy a high degree of independence and can thus influence the scope and focus of the research. Results are to be analyzed and reported in scientific publications and the position may also entail mentoring of students and coordination of certain lab functions.

Qualifications:
The successful candidate must have a PhD or equivalent degree in biology, biotechnology or related subjects, with strong scientific merits in aquatic microbial ecology and environmental genomics. Successful candidates must have extensive laboratory experience working with aquatic microbiology methods relevant for the project and also be proficient in using up to date bioinformatic tools necessary for analyzing complex microbial metagenomes and be able to independently reconstruct and analyze the metabolic properties of population genomes from such datasets. Good command of the English language is a requirement, as is demonstrated ability to effectively and clearly communicate research results in scientific publications. Additional merits that will strengthen your application: previous experience of cultivation and maintenance of bacteria-phage model systems.

Place of work:
Uppsala

Form of employment:
Temporary employment, 24 months

Application:
We welcome your application no later than 2020-06-30.

For further information, please click here.Open
Researcher – Aquatic microbial ecology and biogeochemistry
Position type: Researcher
Location: Swedish University of Agricultural Sciences (Sweden)
Application deadline: 2020-06-30
Duties:
The researcher will join a dynamic new research group in aquatic microbial ecology and biogeochemistry. We study microorganisms and their processes in lakes and other aquatic ecosystems using a combination of molecular, cellular and isotope tracer methods. Tools such as large-scale metagenome sequencing, single cell analyses and advanced analytical chemistry approaches are frequently used and the research include both field work and controlled laboratory experiments. Current focal areas are microbial carbon, nitrogen and mercury transformation while we also have ongoing research in polar microbiology, deep biosphere exploration and studies of host-associated microorganisms and symbiosis.
For this position we are looking for an experienced researcher to take a central role in our ongoing efforts to understand microbial carbon processing in freshwater systems. The approach will be experimental and include both field campaigns and controlled laboratory experiments. Microbial communities will be studied using DNA/RNA based methods, single cell assays, stable isotope tracers and analysis of dissolved organic compounds with mass-spectrometry methods. The researcher will enjoy a high degree of independence and can thus influence the scope and focus of the research. Results are to be analyzed and reported in scientific publications and the position may also entail mentoring of students and coordination of certain lab functions.

Qualifications:
The successful candidate must have a PhD or equivalent degree in biology, environmental sciences or related subjects, with strong scientific merits in aquatic microbial ecology. Successful candidates must have strong laboratory skills relevant for the scope of the position. Proficiency in English (both written and spoken) is required, as is demonstrated ability to effectively and clearly communicate research results in scientific publications.
Additional merits that will strengthen your application: analytical chemistry experience, relevant field work, statistics and bioinformatics skills.

Place of work:
Uppsala, Sweden

Form of employment:
Temporary employment, 24 months

Application:
We welcome your application no later than 2020-06-30.

For further information, please click here.Open
Vacancy for a PhD student in Hydrology
Position type: PhD position
Location: University of Zurich (Switzerland)
Application deadline: 2020-06-15
We have an open position for a PhD student within the project "Mountains: Water towers for food production?" at the University of Zurich, Department of Geography, Unit Hydrology & Climate (http://www.geo.uzh.ch/h2k).

Runoff originating in mountain areas has high significance for lowland hydrology and water resources – this is why mountain areas are symbolically called “Water Towers”. The importance of mountain runoff is especially high for irrigated agriculture downstream, which is the biggest user of water resources worldwide. Because of the far-reaching impacts of changes in climate and water consumption, it is critical to reduce the uncertainty surrounding the current and future availability of mountain runoff and particularly its importance for irrigated food production downstream.

The PhD project will develop a model framework to quantify the contribution of mountain areas to lowland irrigation and food production. The framework departs from existing global models for hydrology, glaciers and crop growth, and combine them to make targeted assessments under present and projected future conditions. This will involve development and testing of a model coupling, using a few study basins for in-depth analysis and discussion of results in regional context.

Applicants should have a diploma or MSc degree in hydrology, geography, earth sciences, environmental sciences or in a closely related field. An affinity to programming is a prerequisite since the project involves coding (mainly in Python and R), and familiarity with hydrological modelling is a further decisive asset. Furthermore, experience in evaluating and visualizing spatially distributed data (R, ArcGIS) is important, as well as enthusiasm for tackling questions of global water resources and food security. We encourage applications from dedicated individuals with good oral and written communication skills in English, who enjoy working in a team.

The Department of Geography offers an interdisciplinary, international work environment and a formal PhD program (http://www.geo.uzh.ch/en/graduate-school). The Unit Hydrology & Climate has strong expertise in hydrological modeling and in experimental hydrology. The salary is competitive and according to the salary scale of the Swiss National Science Foundation.

Please send your application including cover letter, CV, relevant diploma, an example of your own scientific writing (if available) and the names and contact details of two to three potential references in one single pdf-file (not larger than 3 MB, otherwise use a file transfer service) to Daniel Viviroli (daniel.viviroli@geo.uzh.ch). Please write ‘Application Water Towers’ in the subject line. Review of applications will start on 15 June and continue until the position is filled.

For questions, please contact PD Dr. Daniel Viviroli (daniel.viviroli@geo.uzh.ch) or Prof. Dr. Jan Seibert (jan.seibert@geo.uzh.ch). Open
Postdoctoral Position in Water Resources and Quality Management
Position type: Postdoctoral position
Location: Kyungpook National University (South Korea)
Application deadline: 2020-06-15
The Water Quality Laboratory at Kyungpook National University (KNU-WQL), Sangu Campus, offers a Postdoctoral Fellowship for highly motivated PhDs (up to 3 years: Jun/2020 ~ May/2023). The fellowship program is research based and require publishing of research results in reputed academic journals. A selected candidate will be involved in an NRF (National Research Foundation) funded research project. Annual salary will be in accordance with a standard postdoc position at universities in South Korea (~ 36,000,000 KRW before tax deduction). The initial contract term is one year, and the contract will be extended up to three years with some incentive, based on performance/publication evaluation.

Research Topic: The postdoctoral fellow will investigate the dynamics of biopolymers (EPS: extracellular polymeric substances; TEP: Transparent Extracellular Polymers), suspended particulate matter (SPM) and microplastics, in natural and engineered aquatic systems (e.g. river, lake, wastewater treatment plant). Specifically, the fellow will investigate EPS/TEP-mediated flocculation, sedimentation and deposition of SPM and microplastics in a natural and engineered aquatic system. The fellow will also join in international collaboration with KU Leuven, RBINS and Flanders Hydraulics in Belgium. The detailed research tasks are shown below:
- Development and application of analytical methods for quantifying EPS/TEP, OM and microplastics in water and sediment samples.
- Flocculation kinetic experiments for investigating physicochemical interactions and flocculation kinetics in aqueous suspension containing EPS, SPM and microplastics.
- Implementation of the flocculation kinetic model to a large-scale, multi-dimensional fate and transport model, such as TELEMAC and OpenFoam (in collaboration with other researchers)
- Field investigation on Hydrodynamic, Water Quality, and Fluid Mud dynamics (in collaboration with other researchers)

Expectation: The ideal candidate has:
- Strong Background in environmental engineering, specifically for aquatic chemistry, reaction kinetics and mathematical modelling
- Experiences in a laboratory, such as OM, EPS/TEP analysis, reactor operation, use of analytical instruments and so on - Knowledge in hydrodynamics and sediment transport
- Academic writing skill, good enough to publish papers in reputed journals

Eligibility: Doctoral degree holding candidates with strong academic background from environmental, chemical, civil engineering, geology, limnology, chemistry or other related academic disciplines are encouraged to apply.

How to Apply & Procedure: Candidates should send required documents (CV, copies of academic transcripts, list of publications) by email to Prof. Byung Joon Lee (bjlee@knu.ac.kr) with subject "Application for Postdoc Position @ KNU-WQL". The deadline of application is 15/Jun/2020. IF your CV is found suitable, you will be contacted for further process and review.

Find more information about Prof. Byung Joon Lee on the google scholar and researchgate websites. https://scholar.google.be/citations?user=YroI8HoAAAAJ&hl=ko
https://www.researchgate.net/profile/Byung_Joon_Lee Open
PhD student (m/f/d) - QUANTIFICATION OF LIGHT POLLUTION AS A MIGRATION BARRIER
Position type: PhD Student
Location: Leibniz Institute of Freshwater Ecology and Inland Fisheries - IGB (Germany)
Application deadline: 2020-05-31
MSCA-Ribes - RIver flow regulation, fish BEhaviour and Status

RESEARCH (/RESEARCH) - WP1 (/research/wp1)

ESR02 - QUANTIFICATION OF LIGHT POLLUTION AS A MIGRATION BARRIER

Host Institution: IGB (https://www.msca-ribes.eu/consortium/beneficiaries/igb) - Leibniz Institute of Freshwater Ecology and Inland Fisheries

Location: Berlin (Germany)

Doctoral degree: PhD in Biology at the Freie Universität Berlin

Job description: The project will focus on modelling fish migration along rivers. The main objectives are to determine the effects of artificial light on fish migration, and to identify criteria for artificial light management to mitigate detrimental effects on fish. The ideal candidate has a solid understanding of ecological concepts, combining experience in spatial explicit approaches in environmental modelling (e.g. agent-based models) with an interest in confronting ecological theory and models with experimental data. During the secondment period the candidate will be trained on consideration of light pollution effects in environmental modelling, and on signal processing methods. On a later stage the candidate will be involved in a comparative study on interaction between artificial light, noise, and other environmental stressors.

Workplace: The candidate will be provided with the office space at IGB, which includes a personal computer, specialized software, access to library, internet and printers. For potential field works the candidate can use equipment of IGB for light-pollution measurements and river-ecological studies.

Secondment period (to be confirmed): Expected duration: 4 months; Hosting institutions: SJE (SJE Ecohyrdaulic Engineering GmbH - Stuttgart, Germany), SOTON (University of Southampton - Southampton, UK).

For further information, please click here.Open
PhD student (m/f/d) - HYDRODYNAMICS OF FISH HABITATS IN NATURAL STREAMS: IMPLICATION FOR FISH BEHAVIOUR
Position type: PhD position
Location: Leibniz Institute of Freshwater Ecology and Inland Fisheries - IGB (Germany)
Application deadline: 2020-05-31
MSCA-Ribes - RIver flow regulation, fish BEhaviour and Status

RESEARCH (/RESEARCH) - Work package: WP2 (/research/wp2)

ESR06 - HYDRODYNAMICS OF FISH HABITATS IN NATURAL STREAMS: IMPLICATION FOR FISH BEHAVIOUR

Host Institution: IGB (https://www.msca-ribes.eu/consortium/beneficiaries/igb) - Leibniz Institute of Freshwater Ecology and Inland Fisheries

Location: Berlin (Germany)

Doctoral degree: PhD in Biology at the Freie Universität Berlin

Job description: The candidate is supposed to plan, execute, post-process and analyze field experiments and measurements (including construction of in-stream facilities, measurements of fish trajectories with underwater cameras, flow characteristics with ADV and ADCP, drag force on the model fish, visibility in turbulent flow). It is also expected that during the two secondments the candidate will be working with fish recognition software and will be introduced into techniques of laboratory experimentation. On the later stage the candidate will be involved into individual-based modeling of fish and their usage of habitats with the use of in-house developed software. Further tasks include organization and support of a data base of the studies, writing reports and drafting the scientific papers, participation in the scientific conferences and the events of the consortium network.

Workplace: The candidate will be provided with the office space at IGB which includes a personal computer, specialized software, access to library, internet and printers. For the field works the candidate will use equipment (IDV, ADCP, total station, cameras), field vehicle, portable boats, and specialized equipment of IGB for eco-hydraulic studies.

Secondment period (to be confirmed): Expected duration: 5 months; Hosting institutions: UNIABDN (University of Aberdeen - Aberdeen, UK), TALTECH (University of Tallin - Tallin, Estonia), POLITO (Politecnico di Torino - Torino, Italy), IGM (Ingenieurbüro Dr Gerald Müller - Germany). For further information, please click here.Open
1 PhD Student (m/f/d) in Aquatic Microbial Ecology
Position type: PhD position
Location: Leibniz-Institute of Freshwater Ecology and Inland Fisheries - IGB (Germany)
Application deadline: 2020-07-31
In the frame of the graduate school of the German Science Foundation (DFG) entitled: “Rolle von Biota im Kohlenstoffkreislauf von Ästuaren (Graduiertenkolleg 2530)” we offer in close collaboration with the University of Hamburg (see also: www.grk-bicest.uni-hamburg.de) 1 PhD Student (m/f/d) in Aquatic Microbial Ecology (Ref. 06/2020)

The PhD student will be a member of the DFG funded Research Training Group BiCEst (Biota-mediated effects on Carbon cycling in Estuaries) and investigate effects of microbial community composition, key metabolic pathways and metabolic interactions of aggregate-associated microbes on organic matter degradation along estuarine gradients. Field samples along the salinity gradient of the Elbe Estuary will be taken to analyze effects of changes in microbial community composition, key metabolic pathways and metabolic interactions of aggregate-associated microbes on organic matter degradation. Further, effects of different organic matter sources and microbial communities on organic matter aggregation and microbial degradation will be studied using an array of molecular and biogeochemical methods including whole 16S RNA gene sequencing and stable isotope tracers. Focus will be set on interactions between microbes and their relevance for C sequestration, organic matter transformation (including GHG emissions) and food web structure.

Requirements
A university degree in one of the following fields: Biology, Molecular Life Sciences, Biochemistry, Microbiology or related. Successful candidate should have knowledge and experience in general microbiology, physiology and genetics of bacteria, work with microbial consortia or biofilms. Experience with microbial community analyses including Illumina amplicon sequencing, functional metagenomics and transcriptomics are useful. Knowledge in biochemistry, especially in greenhouse gas measurements is helpful.
Solid knowledge in scientific writing, team spirit, and at least basic knowledge on bioinformatics and biochemistry are required. Good oral and written English skills are necessary.

For further information, contact Hans-Peter Grossart (hgrossart@igb-berlin.de).

We are seeking to recruit outstanding scientists to establish an innovative research program with high international visibility. The position is available for three years. Salary is according to the German Public Service (TVöD) (PhD student: 65% position). The position will be based at the department “Experimental Limnology” in Neuglobsow, Germany, but requires visits in the partner lab of Prof. Dr. Wolfgang Streit and graduate school events at the University of Hamburg. In keeping with the institute’s policy regarding gender equity, female applicants are particularly encouraged. Disabled people with identical qualifications will be favored.

For further information, please click here.Open
Postdoc candidate in Quantitative Freshwater Biology for a Junior Group Leader position
Position type: Postdoc candidate
Location: University of South Bohemia in České Budějovice (Czech Republic)
Application deadline: 2020-05-03
Faculty of Science, University of South Bohemia in České Budějovice will be hiring two postdocs as Junior Group Leaders. We are looking for a strong candidate to study consequences of human impacts such as warming, eutrophication and pollution on freshwater ecosystems from individual to community level.

We use laboratory and field experiments (including newly established heated outdoor mesocosms at the campus), field studies and modelling to understand how environmental drivers shape individual life histories, species interactions and population/community dynamics. Our primary focus is on standing waters ranging from small pools to large reservoirs. Recent publications include papers in Ecology Letters, Global Change Biology, Reviews in Aquaculture and Freshwater Biology and Freshwater Biology.

The ideal candidate should hold a PhD in ecology, hydrobiology or related field, and have a strong interest in quantitative ecology. He/she may either focus on zooplankton and macroinvertebrates with which we already work extensively, or bring additional expertise. For further enquiries, please contact Assoc. Prof. David Boukal (dboukal@prf.jcu.cz) or Prof. Jaroslav Vrba (jaroslav.vrba@prf.jcu.cz).

For further information, please click here.Open
Full Professorship in Freshwater Ecology
Position type: Full Professorship
Location: Brandenburg University of Technology (BTU), Germany
Application deadline: 2020-04-02
The Faculty of Environment and Natural Sciences of Brandenburg University of Technology (BTU) Cottbus–Senftenberg, invites applications for a FULL PROFESSORSHIP FRESHWATER ECOLOGY commencing at the earliest opportunity.

The successful candidate will be responsible for teaching and research in freshwater ecology. We seek an outstanding scientist with an international reputation in theoretical and experimental analy- sis of surface waters and their interactions with the environment. The research station of the Department Freshwater Ecology is located in Bad Saarow at Scharmützelsee and offers extensive limnological equipment including a research catamaran and provides excellent opportunities for experimental research.
Cooperation with other departments at the Institute of Environmental Science, ranging from soil and water science to ecology, environmental economy and planning, is essential and contributions to joint research proposals are expected. The interdisciplinary focus of research activities emphasizes the link between basic ecosystem-oriented research and applied limnology with practical implications. Experience in the acquisition and realization of third-party funded projects is expected. Fields of research should be relevant for DFG (German Research Foundation) or comparable international funding agencies.
Compulsory and elective courses in ecology and management of aquatic ecosystems are taught as part of Bachelor and Master programs in the faculty, namely: Environmental Resources Manage- ment, Environmental Engineering and Land Use and Water Resources Management. Courses are taught in English and German. Collaboration in structured PhD programs and contributions to curriculum development within the Graduate Research School is expected. Taking on a leadership role as part of academic administration is also expected.

For further information please contact
apl. Prof. Dr. rer. nat. habil. Michael Mutz
P +49 (0)33631 8943
E m.mutz@b-tu.de

The application, including academic certificates, curriculum vitae, a list of publications, as well as proof of teaching experience, should be sent by e-mail in a single pdf file with max. 7 MB until 2 April 2020 to: fakultaet2+bewerbungen@b-tu.de

For further information, please click here.Open
PhD position in freshwater ecology
Position type: PhD position
Location: Helmholtz Centre for Environmental Research - UFZ, Magdeburg, Germany
Application deadline: 2020-04-12
The UFZ's Lake Research Department (https://www.ufz.de/index.php?en=34221) is offering a PhD position in the project DIABLO to investigate how late-winter blooms of algae, especially diatoms, influence the ecology and biogeochemistry of lakes. To this end, we are seeking an enthusiastic person for the following topic.

PhD Position (m/f/x)
Winter diatom blooms and their effects on lake ecosystems


Project start: June 1, 2020. Working time 75% (29.25 hours per week), limited to 3 years.

Place of work: UFZ campus in Magdeburg, Germany

Tasks: Ecologists have traditionally thought that lakes are biologically dormant in winter, but recent developments have shown that they’re not. Algae can form large blooms, but we know little about them because monitoring campaigns typically skip the winter. Your job will be to investigate the causes and consequences of diatom blooms that occur in late winter in a certain class of lakes. You will analyze long-term data from a number of Germany’s best studied lakes and reservoirs, and perform field research over one season. Using this knowledge, you will develop and apply an ecological model to simulate the winter dynamics in some of these lakes. Ultimately, your work will help scientists understand how climate warming, which strongly affects winter, will influence lake ecology. You will have the possibility to be part of the UFZ’s graduate school TRACER, which provides opportunities for scientific courses, career development, international travel, and networking. The position will be based in the department of lake research at the UFZ’s campus in Magdeburg, Germany.

Job requirements:
• Master’s degree or equivalent in limnology, biology, environmental science, mathematics, or a related field.
• Knowledge of aquatic ecosystems and biogeochemistry.
• Strong numerical and data analysis skills
• Knowledge of scripting languages like R, Python, or Matlab is an advantage.
• Experience in statistical modelling and time-series analysis is an advantage.
• Experience in process-based modelling is an advantage.
• Proficiency in English.
• Ability to work in an interdisciplinary team and willingness to collaborate with international partners.

UFZ offers:
• Top level interdisciplinary research at a research centre which enjoys an excellent reputation within Germany as well as internationally
• Excellent technical facilities
• Work in inter-disciplinary and multinational teams
• Excellent links to national and international research networks
• Support and optimal training courses by our graduate school (HIGRADE)
• Remuneration in accordance with the TVöD public-sector pay grade 13, 75% working time

Contact for questions regarding the job: Dr. Tom Shatwell (tom.shatwell@ufz.de)

Please submit your application via our online portal (https://recruitingapp-5128.de.umantis.com/Vacancies/1870/Description/2) with your cover letter, CV (please omit your photo, age and marital status) and relevant attachments.
Application deadline: 12 April 2020Open
Post-Doctoral Position in Nitrogen Isotope Biogeochemistry
Position type: Post-Doc position
Location: University of Basel (Switzerland)
Application deadline: 2020-04-15
The Aquatic and Isotope Biogeochemistry Research Group at the Department of Environmental Sciences, University of Basel (https://duw.unibas.ch/de/bgc/) invites applications for a Postdoc position in the field of benthic nitrogen isotope biogeochemistry. The postdoc will be part of a project investigating the stable isotope effects and N2O isotope signatures associated with elimination and cycling of bioavailable nitrogen (N) in lake and marine sediments. Research is planned in close collaboration with the Eawag Swiss Federal Institute of Aquatic Science and Technology (Department Systems Analysis, Integrated Assessment and Modelling), as well as scientists from the University of Southern Denmark, Woods Hole Oceanographic Institution, and the GFZ Potsdam.

Your position
The prime goal of the planned research is to build a thorough understanding of the controls on the NOx (nitrate and nitrite) and N2O nitrogen and oxygen iso-tope signatures produced during sedimentary denitrification and other N cycling reactions. In close collaboration with two PhD students, the postdoctoral project will make use of laboratory experiments and field investigations into the sediment porewater (N and O) isotope dynamics of distinct lacustrine and marine denitrifying environments, in order to develop and calibrate an isotope-biogeochemical model to simulate the distribution of N-species and their isotope ratios (in N2O isotopocule systematics) within sediment porewaters. The planned research will be highly relevant for the use of N isotope measurements to constrain local, re- gional, and even global N budgets, and to assess the controls on the isotopic composition of N2O released by aquatic sediments.

Your profile
We are looking for motivated candidates with a PhD in environmental sciences, oceanography, limnology, geo-chemistry, biology, or a related discipline. Candi- dates are expected to have a solid background in (bio-) geochemistry in aquatic systems in general, as well as (micro-) biological processes and nitrogen cycling in benthic environments in particular. An expertise in N-isotope methods, N2O isotope biogeochemistry, and/or numerical modelling of porewater geochemical processes will be an asset. The ability to work in an interdisciplinary team and good communication skills including fluency in English are essential.

We offer you
The fulltime appointment, funded by the Swiss National Science Foundation (SNF), will be for three years, with a possible extension for another year. We offer an international, multidisciplinary work environment and excellent research infrastructure. Compensation will be according to the guidelines of the Swiss Na- tional Science Foundation (http://www.snf.ch/de/Seiten/default.aspx). The antici- pated starting date is 1 August 2020 or later.

Application / Contact
Please submit your complete application documents, including a letter stating your motivation, experience and skills, a CV and contact details of at least two references via our online recruiting platform. For further information please con- tact Prof. Dr. Moritz Lehmann (moritz.lehmann@unibas.ch). Review of applicati- ons will begin 15 April 2020 and will continue until the position is filled. Open
Two Early Stage Researcher positions of the MSCA-ITN PRORISK in Girona (Spain)
Position type: PhD position
Location: University of Girona, Spanish National Research Council (Spain)
The IEA at the UdG, the IFE group at the CEAB-CSIC, and the Marie Skłodowska -Curie Innovative Training Network (MSCA-ITN) project “Best chemical risk assessment professionals for maximum Ecosystem Services benefit (PRORISK)” OFFER two Early Stage Researcher (PhD Student) positions: “ESR7 - Linking physiological, individual and population level effects: AOP on the fish performance biomarkers” hosted at IEA-UdG and “ESR12 - Translating community change to ecosystem services provision” hosted at CEAB-CSIC.

For further information, please click here.Open
Ph.D. Student in Freshwater Ecology
Position type: PhD position
Location: University of Toledo, Ohio (USA)
The Hintz Lab at the University of Toledo is seeking a highly motivated student to pursue a Ph.D. in freshwater ecology. The incumbent will focus on the ecological and evolutionary impacts of multiple stressors in fresh waters, with a concentration on freshwater salinization. The University of Toledo’s Lake Erie Center will serve as home for the student’s research operations. The Lake Erie Center offers access to a large experimental facility and resources for field studies. Ideally the student would begin summer or fall 2020.

Qualifications: M.S. in ecology, limnology, environmental science, or a closely related field. Strong candidates with a B.S. will be considered.

Application deadline: Open until the position is filled. Interested candidates should email a copy of their unofficial transcripts, curriculum vitae, a letter describing their research experience and interests, and the names and contact information of three references to Dr. William Hintz (William.Hintz@utoledo.edu). Please see our website for more information about the lab (www.hintzlab.com), the Department of Environmental Sciences (https://www.utoledo.edu/nsm/envsciences/grad/), and the Lake Erie Center (https://www.utoledo.edu/nsm/lec/). Please reach out with any questions you may have.

The University of Toledo is an equal opportunity employer. The University is dedicated to building a culturally diverse environment and strongly encourages applications from women, minorities, individuals with disabilities, dual-career professionals, and covered veterans.Open
Postdoctoral Fellow position available in invasion ecology
Position type: Postdoctoral Fellow
Location: Great Lakes Institute for Environmental Research, University of Windsor (Canada)
Postdoctoral Fellow position available in invasion ecology with Drs. Hugh MacIsaac and Sarah Bailey.
We seek candidates for a position to address risk assessment associated with colonization pressure in aquatic invasion ecology. The successful applicant will review pertinent literature, assess risk associated with mock zooplankton communities in experimental mesocosms, and model relative risk associated with colonization pressure and propagule pressure in ballast water communities. Appointment is initially available for one year, with renewal contingent on funding.

Applicants must possess a PhD in plankton ecology and/or invasion ecology, a strong publication record, and strong quantitative and verbal skills. Experience working with large data sets, and on collaborative projects with multiple stakeholders is beneficial.

The position is based primarily at GLIER with Hugh MacIsaac, though some work and analyses will occur with Sarah Bailey at Fisheries and Oceans Canada in Burlington, Ontario.

Applications should include a cover letter, c.v., statement of research interests, and the names of two references. Application materials should be directed to Dr. Hugh MacIsaac at aquaticexplorer@yahoo.com.

Open
Postdoctoral researcher
Position type: Postdoc position
Location: Memorial University (Canada)
We are seeking to fill a two-year fully funded post-doctoral research position in the biogeochemistry of terrestrial-aquatic and river-marine interfaces. Working at both these interfaces the successful candidate will investigate organo-metal interactions and the cycling and composition of carbon and nitrogen and within watersheds of the northwest Atlantic region of eastern Canada. Shifts in river water chemistry and discharge dynamics from high latitude rivers over the past few decades suggest climate-induced alterations of these landscapes with repercussions for downstream aquatic and coastal ecosystems. These alterations include changes to: (1) the composition and fate of terrestrial organic matter; (2) productivity of downstream riverine and coastal ecosystems; and (3) trophodynamics impacting important species to local and indigenous people (e.g. arctic char and salmon). The watersheds accessible within boreal and sub-arctic zones, such as those in Newfoundland and Labrador, provide excellent sentinels for ongoing climate change, enabling critical research to predict future impacts.
Supported through collaborative supervision and laboratory facilities overseen by Drs. Karl Kaiser (Texas A&M University), Rachel Sipler (Memorial University) and Sue Ziegler (Memorial University), this position will provide training in laboratory and field based research techniques including cutting edge biomarker, microbial ecology, nuclear magnetic resonance and stable isotope techniques, and will allow short research stays at Texas A&M University (Galveston Campus). Interactions with collaborators within the Canadian Forest Service, Department of Fisheries and Oceans, the Nunatsiavut Government and with other international collaborators will enable further development of contacts and research experience.
Those with a recent Ph.D. in environmental or aquatic chemistry, marine or environmental science, aquatic biogeochemistry, and biological or chemical oceanography are encouraged to apply. Assets include: experience with analytical methods for metals and natural organic matter, strong written and oral communication skills with significant motivation to publish in the peer reviewed literature; strong interest in team-based interdisciplinary science, with the willingness and ability to work independently when required; demonstrated ability to handle and analyze diverse types of datasets using R, MATLAB, and/or Python.

To apply please send a CV, list of at least three references, and a letter describing your background, interest and suitability for this research program to Susan Ziegler (sziegler@mun.ca). Applications will be reviewed on an ongoing basis. This position will be available as early as November 2019. Memorial University is located in beautiful, historic St. John’s, Newfoundland (https://www.newfoundlandlabrador.com/top-destinations/st-johns) in eastern Canada, and has a student population of ~18,000.Open
PhD Opportunity - Aquatic Ecology
Position type: PhD position
Location: Universitat de Vic - Universitat Central de Catalunya (Spain)
We are looking for PhD candidates to work on different projects of our Group of Aquatic Ecology (http://mon.uvic.cat/aquatic-ecology/):

• SizeEcoFun: Size-based approaches to understand impacts on river ecosystem functioning.
• Ecosystem dynamics of Lake Myvatn, Iceland. High-amplitude fluctuations of the whole community.
• Fate of microplastics in freshwater waterbodies. Impacts and interactions with the planktonic community.

Candidates should apply for funding in the calls and therefore it is required:
• Degree in Biology or Environmental Sciences and master related.
• Motivation and interest to develop a doctoral thesis within the framework of the projects described.
• Good academic record.

Please send curriculum vitae to: sandra.brucet@uvic.cat and mireia.bartrons@uvic.caOpen
Postdoctoral Fellow at University of Waterloo, Canada
Position type: Post-Doc position
Location: University of Waterloo, Canada
MODELING OF WINTER CARBON LOSSES IN COLD REGION WETLAND ECOSYSTEMS UNDER CURRENT AND FUTURE CLIMATES
A Postdoctoral Fellow (PDF) position is available to participate in a research project to evaluate the impact of winter warming mitigation in controlling carbon losses from pan-Canadian wetland and permafrost ecosystems. The goal of this project is to advance the fundamental, process-based understanding of the function of soil biogeochemical processes in cold region environments during the fall-winter and winter-spring transitions and during the non-growing season (NGS) by creating the foundation for the predictive modelling of winter carbon losses in cold region wetland and permafrost ecosystems under current and future climates. The main tasks of the PDF will be developing reactive transport and bioenergetic models to simulate the biogeochemical transformations of carbon and nutrients under winter warming scenarios to quantify future northern wetland and permafrost ecosystems carbon balances during the period of NGS respiration and incorporate into Canada’s Carbon Budget Model.

Applicants must have a PhD in a relevant natural science or engineering field, and have a track record of research productivity, including peer-reviewed publications. Preference will be given to candidates with demonstrated skills and experience in numerical mathematical modeling, programming and numerical analysis in soil biogeochemistry and reactive transport modeling. The PDF will work within a multidisciplinary team with significant strengths in ecohydrology, environmental-(bio)geochemistry, microbiology, chemistry, hydrogeology and high-performance computing. Funding for the positions is available for up to two years. For further information regarding this position, or to submit an application, please contact Dr. Fereidoun Rezanezhad (frezanez@uwaterloo.ca).

For further information, please click here.Open
2 PhD Positions at University of Waterloo, Canada
Position type: PhD position
Location: University of Waterloo, Canada
IMPACT OF WINTER WARMING MITIGATION IN CONTROLLING CARBON LOSSES FROM PAN-CANADIAN WETLAND AND PERMAFROST ECOSYSTEMS
We invite applications for two PhD positions at the University of Waterloo and Laurentian Unviersity to participate in a research project to evaluate the impact of winter warming mitigation in controlling carbon losses from pan-Canadian wetland and permafrost ecosystems. The goal of this project is to advance the fundamental, process-based understanding of the function of soil biogeochemical processes in cold region environments during the fall-winter and winter-spring transitions and during the non-growing season (NGS) by creating the foundation for the predictive modelling of winter carbon losses in cold region wetland and permafrost ecosystems under current and future climates. The main tasks of the PhD students will be conducting field and laboratory experiments and modeling analyses. We are looking for 2 PhD students for this project.

PhD Positions (2): PhD 1 will focus on establishing the temperature-dependencies of carbon and nutrient mineralization rates in relation to soil hydrophysical parameters such as unfrozen water content, and the associated effects on winter microbial soil communities. This PhD student will also be involved in developing a bioenergetic model for simulating microbial reaction systems under variable geochemical winter conditions and project NGS emissions under current and future climate scenarios to quantify future northern wetland and permafrost ecosystems carbon balances.

PhD 2 will focus on assessing the rates and mechanisms of wetland and permafrost soil biogeochemical processes under variable winter conditions and examine the drivers of NGS emissions to determine the effects on carbon and nutrient cycling under variable snow cover and flowpaths during the winter conditions. This PhD student will also be involved in developing a reactive transport model to simulate the biogeochemical transformations of carbon and nutrients under winter warming scenarios and estimate the carbon budgets for the wetland and permafrost ecosystems during the period of NGS respiration and incorporate into Canada’s Carbon Budget Model.

For further information, please click here.Open
Assistant Professor - Hydrology - Cluster Hire
Position type: Assistant Professor
Location: University of Wisconsin – Madison (USA)
We specifically seek candidates with expertise in the transport, transformation, and fate of solutes and materials carried by groundwater and/or surface water, as well as in the solute exchange and processing that occurs within or at the interface between these two domains. This position is part of a campus-wide cluster hiring initiative that aims to further build the vibrant community of water scholars at UW-Madison (https://water.wisc.edu/). Further information regarding the cluster initiative program can be found at: https://facstaff.provost.wisc.edu/cluster-hiring-initiative/. Further information about this Freshwater Sustainability Cluster can be found here: https://water.wisc.edu/cluster-hire/. The three recruitments within the Cluster are as follows: 1) PVL 100386, Hydrology (this position); 2) PVL 100251, Aquatic Ecology/Limnology (recruitment led by Dept of Integrative Biology); and 3) PVL 98889, Water Resources Economics (recruitment led by Dept of Ag & Applied Economics). Tenure home will be determined at time of hire.

The successful applicant will be expected to contribute to the research, teaching, and service mission of their tenure department. They will develop a vibrant, internationally recognized and externally funded research program. They will teach courses at the undergraduate and graduate levels as well as mentor students. They will be expected to participate in professional, public and university service as appropriate. We are also interested in candidates who can contribute to an inclusive environment, and who can bring new perspectives on mentoring and educating students from diverse backgrounds.
In addition, the person hired will actively contribute to the cluster through research, teaching, and interaction with the Water@UW community.

Diversity is a source of strength, creativity, and innovation for UW-Madison. We value the contributions of each person and respect the profound ways their identity, culture, background, experience, status, abilities, and opinion enrich the university community. We commit ourselves to the pursuit of excellence in teaching, research, outreach, and diversity as inextricably linked goals. The University of Wisconsin-Madison fulfills its public mission by creating a welcoming and inclusive community for people from every background - people who as students, faculty, and staff serve Wisconsin and the world.

Open until filled.

For further information, please click here.Open
Assistant Professor of Limnology - Cluster Hire
Position type: Assistant Professor
Location: University of Wisconsin – Madison (USA)
We seek a candidate to develop an internationally-recognized research program in limnology and/or aquatic ecosystem ecology. Potential areas of expertise include water quality, aquatic biogeochemistry, quantitative methods, ecosystem modeling, and global environmental change. We are particularly interested in candidates who can work collaboratively to address complex problems involving freshwater systems, including studies spanning disciplinary boundaries and involving social-ecological dynamics. Our goal is to hire an outstanding and collaborative individual with broad research interests and promise for intellectual growth.

This position is part of a campus-wide cluster hiring initiative that aims to further build the vibrant community of water scholars at UW-Madison (https://water.wisc.edu/). Further information regarding the cluster initiative program can be found at: https://facstaff.provost.wisc.edu/cluster-hiring-initiative/. Further information about this Freshwater Sustainability Cluster can be found here: https://water.wisc.edu/cluster-hire/. The three recruitments within the Cluster are as follows: 1) PVL 100251, Aquatic Ecology/Limnology (this position); 2) PVL 100386, Hydrology (recruitment led by the Nelson Institute for Environmental Studies); and 3) PVL 98889, Water Resources Economics (recruitment led by Dept of Ag & Applied Economics). Given the nature of this faculty position, the Center for Limnology and the Department of Integrative Biology are strong possibilities for an academic home, though the ultimate tenure home for the position will be agreed upon by the University and candidate based on scholarly fit. There is also the option of co-appointment in the Nelson Institute for Environmental Studies. The Nelson Institute is an interdisciplinary division of the University with faculty from across campus involved in interdisciplinary educational research, teaching, and outreach. The Nelson Institute administers the interdisciplinary M.S. in Water Resources Management, among numerous other programs.

Expectations of the successful candidate include excellence in research and graduate training, engagement in interdisciplinary and collaborative research, establishment of an extramurally funded research program, University and professional service, public outreach, and skilled teaching at undergraduate and graduate levels.

Diversity is a source of strength, creativity, and innovation for UW-Madison. We value the contributions of each person and respect the profound ways their identity, culture, background, experience, status, abilities, and opinion enrich the university community. We commit ourselves to the pursuit of excellence in teaching, research, outreach, and diversity as inextricably linked goals.
The University of Wisconsin-Madison fulfills its public mission by creating a welcoming and inclusive community for people from every background - people who as students, faculty, and staff serve Wisconsin and the world.

Open until filled.

For further information, please click here.Open
Principal Scientists - Ministry for the Environment (New Zealand)
Position type: Principal Scientists
Location: Ministry for the Environment (New Zealand)
Ministry for the Environment (New Zealand)
The Ministry's purpose - he whenua mana kura mō te tangata - is to make New Zealand the most liveable place in the world – for our kids, their children and grandchildren. This means we act as stewards for the environment, so that New Zealand and New Zealanders continue to prosper.
We tackle the hottest issues that impact on the environment, supporting New Zealand's prosperity – economic, social and cultural, without compromising our environment for future generations.
The Ministry's goal to make New Zealand the most liveable place in the world is a considerable responsibility and one we take seriously

Background
The Principal Scientist cohort is the nexus of a growing internal senior science network. A collective resource that assist in advancing and delivering on the Ministry's overall science strategy led by our Departmental Chief Science Advisor/Kaitohutohu Mātanga Pūtaiao Matua.
Our Principal Scientist cohort will play a key role in driving science impact, with responsibility for strengthening our understanding of the environment, enhancing our capability to draw on information across knowledge systems and sciences, and translating information to enhance the quality of the Ministry's work. We all work as ‘One MfE'. The cohort of Principal Scientists are therefore lateral thinkers that enjoy taking part in conversations within and outside their respective area(s) of specialisation and will engage across the Ministry's portfolio of work.

The position (s)
As a Principal Scientist, you will be a lead advisor in your area of specialisation as well as contribute across the Ministry's work bringing a long-term whole-of-Ministry perspective. You will bring a science-based perspective and input, champion the use of evidence and systems thinking in the development of strategy and policy, be well connected across the science system, and provide guidance on the generation and commissioning of relevant science and science advice. You will be instrumental in enhancing the scientific capability, capacity, and reputation of the Ministry.
We are particularly looking to increase the Ministry's expertise and depth in the following areas of specialisation:
• Land and soil,
• Climate,
• Freshwater, and
• Mātauranga Māori.
The role is challenging and the scope for making a difference is huge.

We would love to hear from you if you have:
• A post-graduate qualification in science, preferably at doctoral level.
• Strong and credible reputation as a senior and respected scientist, with a nationally and/or internationally distinguished record in an area of research relevant to the Ministry.
• High level of knowledge of research methodology, including emerging and innovative approaches, and extensive experience in working with a range of methods.
• Curiosity and willingness to work in cross-disciplinary environments.
• Sound judgement and awareness of how to translate data and evidence into insights that will inform strategy and policy advice.
• Ability to use logic and reasoning to identify the strengths and weaknesses of alternative solutions.
• An understanding of the machinery of government processes, systems and tools.
• Experience in, or knowledge of, the landscape within which the Ministry operates.
• Ability to mentor people within the organisation and lead the development of scientific capability.
• Highly developed communication skills both oral and written that enables the person to explain complex issues clearly to a range of audiences, including non-technical experts.
• Ability to build strong relationships with others.
• An understanding of Te Tiriti o Waitangi, tikanga Māori and the Vision Mātauranga Policy.
• Broad networks across the research innovation system.
• Track record of research innovation funding application success.

The Principal Scientist range is from $134,477 to $181,940
If you require further information about this position please contact Camilla Lundbak (Camilla.lundbak@mfe.govt.nz)Open
Postdoctoral Research Associate: Quantifying climate impacts on inland and coastal eutrophication
Position type: Postdoctoral Research Associate
Location: Carnegie Institution for Science, Stanford (CA)
Contact Name: Anna Michalak
The Department of Global Ecology at the Carnegie Institution for Science (CIS) is seeking Postdoctoral Research Associates to contribute to research that aims to quantify climate change impacts on freshwater and coastal water quality via influences on nutrient delivery to, and on conditions within, water bodies. Our approach is highly data-driven, with a common methodological thread being the development and application of statistical approaches for optimizing the use of limited in situ and remote sensing environmental data.

Requirements:
• Ph.D. in hydrology, limnology, remote sensing, earth science, or related field;
• Experience working with water quantity or quality observations at regional, continental and/or global scales;
• Experience with quantitative data analysis and modeling approaches;
• Experience exploring questions about climate and/or water quality;
• Excellent oral and written communication skills.

Informal inquiries about these positions can be made by emailing Anna Michalak at michalak@carnegiescience.edu.

The review of applications will begin immediately and the position will remain open until it is filled. Compensation is competitive and will be commensurate with work experience and skills.

For further information please click here. Open