Dr.

Jens Christian Nejstgaard

Domain/Position
Phone
+49 (0) 33082 699 40
Fax
+49 (0) 33082 699 17
Room
204B

Alte Fischerhütte 2, OT Neuglobsow, 16775 Stechlin

Profile
Expertise

My main expertise is in plankton ecology (freshwater and marine), with focus on process studies and experimental quantification of population dynamics and trophic interactions from individual to ecosystem-scales, in response to environmental forcing in a changing world. I have 3 decades of experience in designing and leading international mesocosm experiments.

To overcome present bottlenecks in plankton ecology, I develop new approaches ranging from molecular and video-based in situ techniques to international networks of large-scale mesocosm experimentation

The ultimate aim is to quantify individual interactions enabling a better understanding of how whole plankton ecosystems functions and reacts to environmental pressures in complex natural systems.

In my lab we presently focus on development of in situ and laboratory video systems using deep learning algorithms to enable automatic zooplankton detection, sizing and enumeration at high spatial and temporal scales, as well as determination of zooplankton feeding based on molecular gut content analyses

Examples of forum and board memberships:

Board of European Environmental Research Infrastructures (BEERI)

Leibniz-Strategieforum Digitaler Wandel.

CV

since 2016 Senior Scientist / Group Leader, IGB

2014-2016 Researcher, IGB

since 2014 Adjunct Faculty, Skidaway Institute of Oceanography, University of Georgia, USA

2011-2014 Associate Professor, Skidaway Institute of Oceanography, University of Georgia, GA, USA

2009-2010 Senior Research Scientist at Department of Biology, University of Bergen, Norway (20% additional EU-project coordinator position)

2001-2010 Senior Research Scientist, UNI Research/UNI Environment, Bergen, Norway

1996 -2001 Research Scientist, University of Bergen, Norway

1997 Ph.D. (Dr. Scient) Univ. of Bergen, Norway

AQUACOSM

The first network connecting freshwater and marine large experimental research infrastructures.
Contact person
Jens Christian Nejstgaard
Stella A. Berger
Katharina Makower
Department
(Dept. 3) Experimental Limnology
Start
01/2017
End
12/2020
Topic

Bridging in Biodiversity Science (BIBS)

BIBS is a BMBF project for biodiversity data collection and synthesis in Germany
Contact person
Mark Gessner
Hans-Peter Grossart
Department
(Dept. 2) Ecosystem Research
(Dept. 3) Experimental Limnology
Start
12/2016
End
11/2019
Topic

MARS

Our surface and groundwaters struggle with a variety of different pressures, like water shortage, flow regulation, straightening or sediment and nutrient loading. The project MARS analyses how the combination of these stressors impacts aquatic ecosystems and their functions.
Contact person
Markus Venohr
Department
(Dept. 1) Ecohydrology
(Dept. 3) Experimental Limnology
(Dept. 4) Biology and Ecology of Fishes
Start
03/2014
End
02/2018
Topic

ILES

Skyglow, the diffuse illumination of the night sky by artificial light, has never before been experienced during evolutionary history. Together with another feature of global change – the brownification of lakes caused by humic substances – skyglow disrupts the current light conditions in lake ecosystems. We will elucidate the ecological consequences of these phenomena and the mechanisms underlying them.
Contact person
Mark Gessner
Franz Hölker
Department
(Dept. 1) Ecohydrology
(Dept. 2) Ecosystem Research
(Dept. 3) Experimental Limnology
(Dept. 4) Biology and Ecology of Fishes
(Dept. 5) Ecophysiology and Aquaculture
Start
07/2015
End
06/2018
Topic

CONNECT

Connectivity and synchronisation of lake ecosystems in space and time
Contact person
Stella A. Berger
Sabine Wollrab
Department
(Dept. 1) Ecohydrology
(Dept. 3) Experimental Limnology
Start
05/2018
End
04/2021
Topic

2019

Herwig Stibor; Maria Stockenreiter; Jens Christian Nejstgaard; Robert Ptacnik; Ulrich Sommer

Trophic switches in pelagic systems

Current Opinion in Systems Biology. - 13(2019), S. 108-114

Erik Bochinski; Ghassen Bacha; Volker Eiselein; Tim J. W. Walles; Jens C. Nejstgaard; Thomas Sikora

Deep active learning for in situ plankton classification

Pattern recognition and information forensics / eds.: Zhaoxiang Zhang ... - Cham : Springer, 2019. - S. 5-15. -  (Lecture notes in computer science ; 11188)

2018

Evanthia Mantzouki; Meryem Beklioglu; Justin D. Brookes; Lisette Nicole de Senerpont Domis; Hilary A. Dugan; Jonathan P. Doubek; Hans-Peter Grossart; Jens C. Nejstgaard; Amina I. Pollard; Robert Ptacnik; Kevin C. Rose; Steven Sadro; Laura Seelen; Nicholas K. Skaff; Katrin Teubner; Gesa A. Weyhenmeyer; Bastiaan W. Ibelings

Snapshot surveys for lake monitoring, more than a shot in the dark

Frontiers in Ecology and Evolution. - 6(2018)art. 201

Wiliam Darwall; Vanessa Bremerich; Aaike De Wever; Anthony I. Dell; Jörg Freyhof; Mark O. Gessner; Hans-Peter Grossart; Ian Harrison; Ken Irvine; Sonja C. Jähnig; Jonathan M. Jeschke; Jessica J. Lee; Cai Lu; Aleksandra M. Lewandowska; Michael T. Monaghan; Jens C. Nejstgaard; Harmony Patricio; Astrid Schmidt-Kloiber; Simon N. Stuart; Michele Thieme; Klement Tockner; Eren Turak; Olaf Weyl

The Alliance for Freshwater Life: a global call to unite efforts for freshwater biodiversity science and conservation

Aquatic Conservation. - 28(2018)4, S. 1015-1022

2017

Thijs Frenken; Elisabet Alacid; Stella A. Berger; Elizabeth C. Bournr; Melanie Gerphagnon; Hans-Peter Grossart; Alena S. Gsell; Bas W. Ibelings; Maiko Kagami; Frithjof C. Küpper; Peter M. Letcher; Adeline Loyau; Takeshi Miki; Jens C. Nejstgaard; Serena Rasconi; Albert Rene; Thomas Rohrlack; Keilor Rojas-Jimenez; Dirk S. Schmeller; Bettina Scholz; Kensuke Seto; Telesphore Sime-Ngando; Assaf Sukenik; Dedmer B. van de Waal; Silke van den Wyngaert; Ellen Van Donk; Justyna Wolinska; Christian Wurzbacher; Ramsy Agha

Integrating chytrid fungal parasites into plankton ecology: research gaps and needs

Environmental Microbiology. - 19(2017)10, S. 3802-3822

Darren P. Giling; Jens C. Nejstgaard; Stella A. Berger; Hans-Peter Grossart; Georgiy Kirillin; Armin Penske; Maren Lentz; Peter Casper; Jörg Sareyka; Mark O. Gessner

Thermocline deepening boosts ecosystem metabolism

Global Change Biology. - 23(2017)4, S. 1448-1462

2016

Robert Ptacnik; Ana Gomes; Sarah-Jeanne Royer; Stella A. Berger; Albert Calbet; Jens C. Nejstgaard; Josep M. Gasol; Stamatina Isari; Stefanie D. Moorthi; Radka Ptacnikova; Maren Striebel; Andrey F. Sazhin; Tatiana M. Tsagaraki; Soultana Zervoudaki; Kristi Altoja; Panagiotis D. Dimitriou; Peeter Laas; Ayse Gazihan; Rodrigo A. Martinez; Stefanie Schabhüttl; Ioulia Santi; Despoina Sousoni; Paraskevi Pitta

A light-induced shortcut in the planktonic microbial loop

Scientific Reports. - 6(2016) art. 29286

2015

2014

NEJSTGAARD LAB: ZOOPLANKTON ECOLOGY

Research group of Jens Christian Nejstgaard: Zooplankton Ecology

Present Members:

Post Doc Dr. Katharina Makower

PhD student Tim Walles

Master Student Fayaz Ahasan

Technician Maren Lentz

 

Technical members in the LakeLab Core Group team:

Armin Penske

Matthias Bodenlos

Gonzalo Idoate Santaolalla

 

Previous Member:

PostDoc Dr. Maria Belayeva

 

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