Torkel Gissel Nielsen

Torkel Gissel Nielsen

Professor

DTU AQUA
Institut for Akvatiske Ressourcer

Sektion for Oceaner og Arktis

Danmarks Tekniske Universitet

Kemitorvet

Bygning 201, rum 166

2800 Kgs. Lyngby

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2019
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Andre presfaktorer end næringsstoffer og klimaforandringer

Petersen, Jens Kjerulf ; Holm, Andrea-Pil Sussie ; Christensen, Asbjørn ; Krekoukiotis, Dionysios ; Jakobsen, H. ; Sanderson, H. ; Andreasen, Heidi ; Gislason, Henrik ; Strand, J. ; Behrens, Jane ; Hansen, J. Würgler ; Svendsen, Jon Christian ; Timmermann, K. ; Møller, Lene Friis ; Bach, L. ; Larsen, M. Mørk ; Zrust, M. ; Nielsen, Mette Møller ; Eigaard, Ole Ritzau ; Nielsen, Pernille ; Stæhr, P.A. ; Høgslund, S. ; Nielsen, Torkel Gissel
Presented at:
Dansk Havforskermøde 2019

Type: Conference abstract for conference

Status: Published     |    År: 2019

 

Effects of oil spill response technologies on marine microorganisms in the high Arctic

Pančić, Marina ; Köhler, Eva ; Paulsen, Maria Lund ; Toxværd, Kirstine Underbjerg ; Lacroix, Camille ; Le Floch, Stéphane ; Hjorth, Morten ; Nielsen, Torkel Gissel
in: Marine Environmental Research

Type: Journal article (Peer reviewed)

Status: Accepted/In press     |    År: 2019     |    DOI: https://doi.org/10.1016/j.marenvres.2019.104785

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Eukaryotic and cyanobacterial communities associated with marine snow particles in the oligotrophic Sargasso Sea

Lundgreen, Regitze B. C. ; Jaspers, Cornelia ; Traving, Sachia J ; Ayala, Daniel Jiro ; Lombard, Fabien ; Grossart, Hans-Peter ; Nielsen, Torkel Gissel ; Munk, Peter ; Riemann, Lasse
in: Scientific Reports, vol: 9

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2019     |    DOI: https://doi.org/10.1038/s41598-019-45146-7

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Extreme temperature impairs growth and productivity in a common tropical marine copepod

Doan, Nam X ; Vu, Minh T T ; Pham, Hung Q ; Wisz, Mary ; Nielsen, Torkel Gissel ; Dinh, Khuong Van
in: Scientific Reports, vol: 9, issue: 1

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2019     |    DOI: https://doi.org/10.1038/s41598-019-40996-7

 

Impact of temperature and pyrene exposure on the functional response of males and females of the copepod Calanus finmarchicus

Dinh, Khuong Van ; Olsen, Maria Winberg ; Altin, Dag ; Vismann, Bent ; Nielsen, Torkel Gissel
in: Environmental science and pollution research international

Type: Journal article (Peer reviewed)

Status: Accepted/In press     |    År: 2019     |    DOI: https://doi.org/10.1007/s11356-019-06078-x

 

Microzooplankton distribution in the Amundsen Sea Polynya (Antarctica) during an extensive Phaeocystis antarctica bloom

Swalethorp, Rasmus ; Dinasquet, Julie ; Logares, Ramiro ; Bertilsson, Stefan ; Kjellerup, Sanne ; Krabberød, Anders K. ; Moksnes, Per-Olav ; Nielsen, Torkel Gissel ; Riemann, Lasse
in: Progress in Oceanography, vol: 170, pages: 1-10

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2019     |    DOI: https://doi.org/10.1016/j.pocean.2018.10.008

 

The fate of microplastics during uptake and depuration phases in a blue mussel exposure system

Rist, Sinja ; Steensgaard, Ida M. ; Guven, Olgac ; Nielsen, Torkel Gissel ; Jensen, Lene Hartmann ; Møller, Lene Friis ; Hartmann, Nanna B.
in: Environmental Toxicology and Chemistry, vol: 38, issue: 1, pages: 99-105

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2019     |    DOI: https://doi.org/10.1002/etc.4285

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Transcriptomic responses to grazing reveal the metabolic pathway leading to the biosynthesis of domoic acid and highlight different defense strategies in diatoms

Harðardóttir, Sara ; Wohlrab, Sylke ; Hjort, Ditte Marie ; Krock, Bernd ; Nielsen, Torkel Gissel ; John, Uwe ; Lundholm, Nina
in: BMC Molecular Biology, vol: 20, issue: 1

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2019     |    DOI: https://doi.org/10.1186/s12867-019-0124-0

 

Trophic interactions, toxicokinetics, and detoxification processes in a domoic acid-producing diatom and two copepod species

Hardardottir, Sara ; Hjort, Ditte Marie ; Wohlrab, Sylke ; Krock, Bernd ; John, Uwe ; Nielsen, Torkel Gissel ; Lundholm, Nina
in: Limnology and Oceanography, vol: 64, issue: 3, pages: 833-848

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2019     |    DOI: https://doi.org/10.1002/lno.11078

2018
 

Effects of oil spill response technologies on the physiological performance of the Arctic copepod Calanus glacialis

Toxværd, Kirstine ; Pančić, Marina ; Eide, Helene O. ; Søreide, Janne E. ; Lacroix, Camille ; Le Floch, Stéphane ; Hjorth, Morten ; Nielsen, Torkel Gissel
in: Aquatic Toxicology, vol: 199, pages: 65-76

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2018     |    DOI: https://doi.org/10.1016/j.aquatox.2018.03.032

 

Can domoic acid affect escape response in copepods?

Harðardóttir, Sara ; Krock, Bernd ; Wohlrab, Sylke ; John, Uwe ; Nielsen, Torkel Gissel ; Lundholm, Nina
in: Harmful Algae, vol: 79, pages: 50-52

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2018     |    DOI: https://doi.org/10.1016/j.hal.2018.08.009

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Feeding-related controls on microbial nitrogen cycling associated with the Arctic marine copepod Calanus hyperboreus

Stief, Peter ; Lundgaard, Ann Sofie Birch ; Nielsen, Torkel Gissel ; Glud, Ronnie N.
in: Marine Ecology - Progress Series, vol: 602, pages: 1-14

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2018     |    DOI: https://doi.org/10.3354/meps12700

 

Impact of Pyrene exposure during overwintering of the Arctic Copepod Calanus glacialis

Toxværd, Kirstine Underbjerg ; Dinh, Khuong Van ; Henriksen, Ole ; Hjorth, Morten ; Nielsen, Torkel Gissel
in: Environmental Science and Technology, vol: 52, issue: 18, pages: 10328-10336

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2018     |    DOI: https://doi.org/10.1021/acs.est.8b03327

 

Induction of domoic acid production in diatoms—Types of grazers and diatoms are important

Lundholm, Nina ; Krock, Bernd ; John, Uwe ; Skov, Jette ; Cheng, Jinfeng ; Pančić, Marina ; Wohlrab, Sylke ; Rigby, Kristie ; Nielsen, Torkel Gissel ; Selander, Erik ; Harðardóttir, Sara
in: Harmful Algae, vol: 79, pages: 64-73

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2018     |    DOI: https://doi.org/10.1016/j.hal.2018.06.005

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Linking climate change to community-level impacts on copepods via a new, trait-based model: Life-history and metabolic mechanisms compared

Banas, Neil S. ; Møller, Eva Friis ; Nielsen, Torkel Gissel ; Eisner, Lisa B.
part of: ZPS - Abstracts 2016 , 2018
Presented at:
6th Zooplankton Production Symposium

Type: Conference abstract in proceedings

Status: Published     |    År: 2018

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Menneskeskabte påvirkninger af havet – Andre presfaktorer end kvælstof og klimaforandringer

Petersen, Jens Kjerulf ; Holm, Andrea-Pil Sussie ; Christensen, Asbjørn ; Krekoukiotis, Dionysios ; Jakobsen, Hans ; Sanderson, Hans ; Andreasen, Heidi ; Gislason, Henrik ; Strand, Jakob ; Behrens, Jane ; Hansen, Jens Würgler ; Svendsen, Jon Christian ; Timmermann, Karen ; Møller, Lene Friis ; Bach, Lis ; Larsen, Martin Mørk ; Zrust, Martina ; Nielsen, Mette Møller ; Eigaard, Ole Ritzau ; Nielsen, Pernille ; Stæhr, Peter Anton ; Høgslund, Signe ; Nielsen, Torkel Gissel

Type: Report

Status: Published     |    År: 2018

 

Microplastic does not magnify the acute effect of PAH pyrene on predatory performance of a tropical fish (Lates calcarifer)

Guven, Olgac ; Bach, Lis ; Munk, Peter ; Dinh, Khuong Van ; Mariani, Patrizio ; Nielsen, Torkel Gissel
in: Aquatic Toxicology, vol: 198, pages: 287-293

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2018     |    DOI: https://doi.org/10.1016/j.aquatox.2018.03.011

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No increase in marine microplastic concentration over the last three decades - A case study from the Baltic Sea

Beer, Sabrina ; Garm, Anders ; Huwer, Bastian ; Dierking, Jan ; Nielsen, Torkel Gissel
in: Science of the Total Environment, vol: 621, pages: 1272-1279

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2018     |    DOI: https://doi.org/10.1016/j.scitotenv.2017.10.101

 

Vertical structure of plankton communities in areas of European eel larvae distribution in the Sargasso Sea

Munk, Peter ; Nielsen, Torkel Gissel ; Jaspers, Cornelia ; Ayala, Daniel Jiro ; Tang, Kam W. ; Lombard, Fabien ; Riemann, Lasse
in: Journal of Plankton Research, vol: 40, issue: 4, pages: 362-375

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2018     |    DOI: https://doi.org/10.1093/plankt/fby025

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Zooplankton in changing Arctic seas: Examples from West Greenland ecosystems

Møller, Eva Friis ; Sejr, Mikael Kristian ; Mosbech, Anders ; Nielsen, Torkel Gissel
Presented at:
Polar 2018

Type: Conference abstract for conference

Status: Published     |    År: 2018

2017
 

Dynamics of grazer induced toxin production in Pseudo-nitzschia and the physiological effect on Calanus copepods

Harðardóttir, Sara ; Hjort-Jensen, Ditte Marie ; Eklund, Johan ; Wohlrap, Sylke ; Krock, Bernd ; Selander, Erik ; Nielsen, Torkel Gissel ; John, Uwe ; Lundholm, Nina
Presented at:
Dansk Havforskermøde

Type: Conference abstract for conference

Status: Published     |    År: 2017

 

Effects of elevated pH on marine copepods in mass cultivation systems

Hansen, Benni Winding ; Hansen, Per Juel ; Nielsen, Torkel Gissel ; Jepsen, Per Meyer
in: Journal of Plankton Research, vol: 39, issue: 6, pages: 984-993

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2017     |    DOI: https://doi.org/10.1093/plankt/fbx032

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Effects of global warming and pollutants on marine copepods across space and time

Dinh, Khuong Van ; Nielsen, Torkel Gissel
part of: Book of Abstracts Sustain 2017, 2017, Technical University of Demark
Presented at:
Sustain 2017

Type: Conference abstract in proceedings (Peer reviewed)

Status: Published     |    År: 2017

 

Effects of oil spill responses on key Arctic zooplankton species

Pancic, Marina ; Köhler, Eva ; Paulsen, Maria Lund ; Toxværd, Kirstine Underbjerg ; Le Floch, Stéphane ; Hjorth, Morten ; Nielsen, Torkel Gissel
Presented at:
Dansk Havforskermøde

Type: Conference abstract for conference

Status: Published     |    År: 2017

 

Forurening

Nielsen, Torkel Gissel ; Strand, Jakob ; Pedersen, Britta
part of: Naturen I Danmark, pages: 453-470, 2018, Gyldendal

Type: Book chapter

Status: Published     |    År: 2017

 

Heterotrophic nanoflagellate grazing facilitates subarctic Atlantic bloom development

Paulsen, Maria Lund ; Riisgaard, Karen ; St. John, Michael ; Thingstad, T. Frede ; Nielsen, Torkel Gissel
in: Aquatic Microbial Ecology, vol: 78, pages: 161-176

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2017     |    DOI: https://doi.org/10.3354/ame01807

 

Increased tolerance to oil exposure by the cosmopolitan marine copepod Acartia tonsa

Krause, Kamille Elvstrøm ; Dinh, Khuong Van ; Nielsen, Torkel Gissel
in: Science of the Total Environment, vol: 607-608, pages: 87-94

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2017     |    DOI: https://doi.org/10.1016/j.scitotenv.2017.06.139

 

Marine snow particles in the oligotrophic Sargasso Sea as analysed by amplicon sequencing: composition and linkage to the plankton

Lundgreen, Regitze B. C. ; Ayala, Daniel Jiro ; Jaspers, Cornelia ; Traving, Sachia Jo ; Lombard, Fabien ; Grossart, H.P. ; Munk, Peter ; Nielsen, Torkel Gissel ; Riemann, L.
Presented at:
Dansk Havforskermøde

Type: Conference abstract for conference

Status: Published     |    År: 2017

  PDF

No increase in marine microplastic concentration over the last three decades – A case study from the Baltic Sea

Beer, Sabrina ; Garm, Anders ; Huwer, Bastian ; Dierking, Jan ; Nielsen, Torkel Gissel
part of: Book of Abstracts Sustain 2017, 2017
Presented at:
Sustain 2017

Type: Conference abstract in proceedings (Peer reviewed)

Status: Published     |    År: 2017

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Preliminary results: Deep sea oil spill in the Arctic – effects of pyrene on overwintering Calanus copepods

Toxværd, Kirstine Underbjerg ; Dinh, Khuong Van ; Hjorth, Morten ; Nielsen, Torkel Gissel
part of: Book of Abstracts Sustain 2017, 2017
Presented at:
Sustain 2017

Type: Conference abstract in proceedings (Peer reviewed)

Status: Published     |    År: 2017

 

Species-specific vulnerability of Arctic copepods to oil contamination and global warming

Dinh, Khuong Van ; Nielsen, Torkel Gissel
Presented at:
SETAC Europe: 27th Annual Meeting – Environmental Quality Through Transdisciplinary Collaboration

Type: Conference abstract for conference

Status: Published     |    År: 2017

 

Succession of picophytoplankton during the spring bloom 2012 in Disko Bay (West Greenland)—an unexpectedly low abundance of green algae

Sørensen, Nikolaj ; Daugbjerg, Niels ; Richardson, Katherine ; Nørregaard, Rasmus Dyrmose ; Espersen, Laila Stougaard Kofoed ; Møhl, Malene ; Nielsen, Torkel Gissel
in: Polar Biology, vol: 40, issue: 2, pages: 463–469

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2017     |    DOI: https://doi.org/10.1007/s00300-016-1952-8

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The role of egg cannibalism for the Calanus succession in the Disko Bay, Western Greenland

Frank-Gopolos, Thomas ; Friis Møller, Eva ; Nielsen, Torkel Gissel
in: Limnology and Oceanography, vol: 62, issue: 3, pages: 865–883

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2017     |    DOI: https://doi.org/10.1002/lno.10472

2016
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Calanus finmarchicus egg production at its northern border

Møller, Eva Friis ; Bohr, Magnus ; Kjellerup, Sanne ; Maar, Marie ; Møhl, Malene ; Swalethorp, Rasmus ; Nielsen, Torkel Gissel
in: Journal of Plankton Research, vol: 38, issue: 5, pages: 1206-1214

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2016     |    DOI: https://doi.org/10.1093/plankt/fbw048

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Copepod life strategy and population viability in response to prey timing and temperature: Testing a new model across latitude, time, and the size spectrum

Banas, Neil S. ; Møller, Eva Friis ; Nielsen, Torkel Gissel ; Eisner, Lisa B.
in: Frontiers in Marine Science, vol: 3

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2016     |    DOI: https://doi.org/doi: 10.3389/fmars.2016.00225

 

Deciphering the structure of the West Greenland marine food web using stable isotopes (δ13C, δ15N)

Linnebjerg, Jannie Fries ; Hobson, Keith A. ; Fort, Jérôme ; Nielsen, Torkel Gissel ; Møller, Per ; Wieland, Kai ; Born, Erik W. ; Rigét, Frank F. ; Mosbech, Anders
in: Marine Biology, vol: 163, issue: 11

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2016     |    DOI: https://doi.org/10.1007/s00227-016-3001-0

 

Early life of an inshore population of West Greenlandic cod Gadus morhua: spatial and temporal aspects of growth and survival

Swalethorp, Rasmus ; Nielsen, Torkel Gissel ; Thompson, A. R. ; Møhl, Malene ; Munk, Peter
in: Marine Ecology - Progress Series, vol: 555, pages: 185-202

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2016     |    DOI: https://doi.org/10.3354/meps11816

 

Effects of oil spill responses on key Arctic zooplankton species

Toxværd, Kirstine Underbjerg ; Hansen, Pil Hagenbøl ; Köhler, Eva ; Pancic, Marina ; Hatlebakk, Maja ; Eide, Helene Overaa ; Søreide, Janne E. ; Nielsen, Torkel Gissel ; Hjorth, Morten
Presented at:
Arctic Frontiers Tromsø 2016

Type: Poster

Status: Published     |    År: 2016

 

Effects of oil spill responses on key Arctic zooplankton species

Toxværd, Kirstine Underbjerg ; Hansen, P. ; Köhler, E. ; Pancic, Marina ; Hatlebakk, M. ; Eide, Helene Overaa ; Søreide, Janne E ; Le Floch, Stéphane ; Lacroix, C. ; Nielsen, Torkel Gissel ; Hjorth, M.
Presented at:
7th SETAC World Congress

Type: Poster

Status: Published     |    År: 2016

 

Extreme temperature and oil contamination shape the relative abundance of copepod species in the Arctic

Dinh, Khuong Van ; Nielsen, Torkel Gissel
Presented at:
7th SETAC World Congress 

Type: Conference abstract for conference

Status: Published     |    År: 2016

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Functional biology of sympatric krill species

Agersted, Mette Dalgaard ; Nielsen, Torkel Gissel
in: Journal of Plankton Research, vol: 38, issue: 3, pages: 575-588

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2016     |    DOI: https://doi.org/10.1093/plankt/fbw017

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Microplastic exposure studies should be environmentally realistic

Lenz, Robin ; Enders, Kristina ; Nielsen, Torkel Gissel
in: Proceedings of the National Academy of Sciences, vol: 113, issue: 29, pages: E4121 - E4122

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2016     |    DOI: https://doi.org/10.1073/pnas.1606615113

 

Plankton community composition and vertical migration during polar night in Kongsfjorden

Grenvald, Julie Cornelius ; Callesen, Trine Abraham ; Daase, Malin ; Hobbs, Laura ; Darnis, Gérald ; Renaud, Paul E. ; Cottier, Finlo ; Nielsen, Torkel Gissel ; Berge, Jørgen
in: Polar Biology, vol: 39, issue: 10, pages: 1879-1895

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2016     |    DOI: https://doi.org/10.1007/s00300-016-2015-x

 

Rapid adaptation to oil exposure in the cosmopolitan copepod Acartia tonsa

Krause, K. E. ; Dinh, Khuong Van ; Nielsen, Torkel Gissel
Presented at:
7th SETAC World Congress 

Type: Conference abstract for conference

Status: Published     |    År: 2016

  PDF

The effect of Pseudo-nitzschia seriata on grazing and fecundity of Calanus finmarchicus and Calanus glacialis

Miesner, Anna Katharina ; Lundholm, Nina ; Krock, Bernd ; Nielsen, Torkel Gissel
in: Journal of Plankton Research, vol: 38, issue: 3, pages: 564-574

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2016     |    DOI: https://doi.org/10.1093/plankt/fbw015

2015
 

Abundance, size and polymer composition of marine microplastics ≥10μm in the Atlantic Ocean and their modelled vertical distribution

Enders, Kristina ; Lenz, Robin ; Stedmon, Colin A. ; Nielsen, Torkel Gissel
in: Marine Pollution Bulletin, vol: 100, issue: 1, pages: 70-81

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2015     |    DOI: https://doi.org/10.1016/j.marpolbul.2015.09.027

 

A critical assessment of visual identification of marine microplastic using Raman spectroscopy for analysis improvement

Lenz, Robin ; Enders, Kristina ; Stedmon, Colin ; Mackenzie, David M.A. ; Nielsen, Torkel Gissel
in: Marine Pollution Bulletin, vol: 100, issue: 1, pages: 82-91

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2015     |    DOI: https://doi.org/10.1016/j.marpolbul.2015.09.026

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Biogeography of key mesozooplankton species in the North Atlantic, by manual counting methods, and egg production of Calanus finmarchicus

Melle, W. ; Runge, J. A. ; Head, E. ; Plourde, S. ; Castellani, C. ; Licandro, P. ; Pierson, J. ; Jonasdottir, Sigrun ; Johnson, C. ; Broms, C. ; Debes, H. ; Falkenhaug, T. ; Gaard, E. ; Gislason, A. ; Heath, M. R. ; Niehoff, B. ; Nielsen, Torkel Gissel ; Pepin, P. ; Stenevik, E. K. ; Chust, G.
in: Earth System Science Data, vol: 7, issue: 2, pages: 223-230

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2015     |    DOI: https://doi.org/10.5194/essd-7-223-2015

 

Concentrations of sunscreens and antioxidant pigments in Arctic Calanus spp. in relation to ice cover, ultraviolet radiation, and the phytoplankton spring bloom

Hylander, Samuel ; Kiørboe, Thomas ; Snoeijs, Pauline ; Sommaruga, Ruben ; Nielsen, Torkel Gissel
in: Limnology and Oceanography, vol: 60, issue: 6, pages: 2197-2206

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2015     |    DOI: https://doi.org/10.1002/lno.10194

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Copepod carcasses as microbial hot spots for pelagic denitrification

Glud, Ronnie N. ; Grossart, Hans-Peter ; Larsen, Morten ; Tang, Kam W. ; Arendt, Kristine Engel ; Rysgaard, Søren ; Thamdrup, Bo ; Nielsen, Torkel Gissel
in: Limnology and Oceanography, vol: 60, issue: 6, pages: 2026-2036

Type: Journal article (Peer reviewed)

Status: E-pub ahead of print     |    År: 2015     |    DOI: https://doi.org/10.1002/lno.10149

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Dangerous relations in the Arctic marine food web: Interactions between toxin producing Pseudo-nitzschia diatoms and Calanus copepodites

Hardardottir, Sara ; Pancic, Marina ; Tammilehto, Anna ; Krock, Bernd ; Møller, Eva Friis ; Nielsen, Torkel Gissel ; Lundholm, Nina
in: Marine Drugs, vol: 13, issue: 6, pages: 3809-3835

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2015     |    DOI: https://doi.org/10.3390/md13063809

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Distributions and seasonal abundances of krill eggs and larvae in the sub-Arctic Godthåbsfjord, SW Greenland

Teglhus, Frederik Wolff ; Agersted, Mette Dalgaard ; Akther, Hasna ; Nielsen, Torkel Gissel
in: Marine Ecology Progress Series, vol: 539, pages: 111-125

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2015     |    DOI: https://doi.org/10.3354/meps11486

 

Early development of Calanus glacialis and C. finmarchicus

Jung-Madsen, Signe ; Nielsen, Torkel Gissel
in: Limnology and Oceanography, vol: 60, issue: 3, pages: 934-946

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2015     |    DOI: https://doi.org/10.1002/lno.10070

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Effect of acidification on an Arctic phytoplankton community from Disko Bay, West Greenland

Thoisen, Christina ; Riisgaard, Karen ; Lundholm, Nina ; Nielsen, Torkel Gissel ; Hansen, Per Juel
in: Marine Ecology Progress Series, vol: 520, pages: 21-34

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2015     |    DOI: https://doi.org/10.3354/meps11123

 

Et hav fuld af mikroplastik

Enders, Kristina ; Lenz, Robin ; Sørensen, Thomas Kirk ; Reeh, Line ; Nielsen, Torkel Gissel
in: Aktuel Naturvidenskab, issue: 2, pages: 8-13

Type: Journal article

Status: Published     |    År: 2015

 

Gut evacuation rate and grazing impact of the krill Thysanoessa raschii and T. inermis

Teglhus, Frederik Wolff ; Agersted, Mette Dalgaard ; Arendt, Kristine Engel ; Nielsen, Torkel Gissel
in: Marine Biology, vol: 162, issue: 1, pages: 169-180

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2015     |    DOI: https://doi.org/10.1007/s00227-014-2573-9

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Heterogeneous distribution of plankton within the mixed layer and its implications for bloom formation in tropical seas

Calbet, Albert ; Agersted, Mette Dalgaard ; Kaartvedt, Stein ; Møhl, Malene ; Møller, Eva Friis ; Enghoff-Poulsen, Søren ; Paulsen, Maria Lund ; Solberg, Ingrid ; Tang, Kam W. ; Tönnesson, Kajsa ; Raitsos, Dionysios E. ; Nielsen, Torkel Gissel
in: Scientific Reports, vol: 5, pages: 1-14

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2015     |    DOI: https://doi.org/10.1038/srep11240

 

Horizontal and vertical dynamics of zooplankton and larval fish communities during mid-summer in Disko Bay, West Greenland

Munk, Peter ; Nielsen, Torkel Gissel ; Hansen, Benni Winding
in: Journal of Plankton Research, vol: 37, issue: 3, pages: 554-570

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2015     |    DOI: https://doi.org/10.1093/plankt/fbv034

  PDF

Impact of elevated pH on succession in the Arctic spring bloom

Riisgaard, Karen ; Nielsen, Torkel Gissel ; Hansen, Per Juel
in: Marine Ecology Progress Series, vol: 530, pages: 63-75

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2015     |    DOI: https://doi.org/10.3354/meps11296

 

Impact of ice cover and freshwater discharge on the pelagic food web

Nielsen, Torkel Gissel
Presented at:
ESSAS Annual Science Meeting

Type: Conference abstract for conference

Status: Published     |    År: 2015

 

Induction of domoic acid production in the toxic diatom Pseudo-nitzschia seriata by calanoid copepods

Tammilehto, Anna ; Nielsen, Torkel Gissel ; Krock, B. ; Møller, Eva Friis ; Lundholm, Nina
in: Aquatic Toxicology, vol: 159, pages: 52-61

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2015     |    DOI: https://doi.org/10.1016/j.aquatox.2014.11.026

 

Lights and shadows of the feeding ecology of the small copepod Oithona

Zamora-Terol, Sara ; Nielsen, Torkel Gissel ; McKinnon, A.D. ; Saiz, Enric
Presented at:
ASLO Aquatic Sciences Meeting 2015

Type: Conference abstract for conference

Status: Published     |    År: 2015

  PDF

Microplastics

Lassen, Carsten ; Hansen, Steffen Foss ; Magnusson, Kerstin ; Hartmann, Nanna B. ; Rehne Jensen, Pernille ; Nielsen, Torkel Gissel ; Brinch, Anna

Type: Report (Peer reviewed)

Status: Published     |    År: 2015

 

Oceanography and the base of the pelagic food web in the southern Indian Ocean

Visser, Andre ; Nielsen, Torkel Gissel ; Middelboe, Mathias ; Høyer, Jacob L. ; Markager, Stiig
in: Journal of Plankton Research, vol: 37, issue: 3, pages: 571-583

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2015     |    DOI: https://doi.org/10.1093/plankt/fbv019

 

Økologiske konsekvenser af høj pH på marine copepoder

Hansen, Benni Winding ; Hansen, Per Juel ; Nielsen, Torkel Gissel
Presented at:
18. Danske Havforskermøde

Type: Conference abstract for conference

Status: Published     |    År: 2015

 

Reaching out: Communicating the Danish Eel Expedition 2014

Reeh, Line ; Christoffersen, Mads ; Sørensen, Sune Riis ; Nielsen, Torkel Gissel ; Munk, Peter
Presented at:
18. Danske Havforskermøde

Type: Poster

Status: Published     |    År: 2015

 

Some like it hot - Calanus in Disko Bay

Nielsen, Torkel Gissel ; Jung-Madsen, Signe ; Møller, Eva Friis
Presented at:
ESSAS Annual Science Meeting

Type: Conference abstract for conference

Status: Published     |    År: 2015

  PDF

Structuring of zooplankton and fish larvae assemblages in a freshwater-influenced Greenlandic fjord- influence from hydrography and prey availability

Swalethorp, Rasmus ; Malanski, Evandro ; Munk, Peter ; Agersted, Mette Dalgaard ; Nielsen, Torkel Gissel
in: Journal of Plankton Research, vol: 37, issue: 1, pages: 102-119

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2015     |    DOI: https://doi.org/10.1093/plankt/fbu099

 

Toxic diatoms in the arctic marine food web: The effect of domoic acid on arctic Calanus copepodites grazing on the diatom Pseudo-nitzschia seriata

Harðardóttir, Sara ; Pancic, Marina ; Tammilehto, Anna ; Nielsen, Torkel Gissel ; Krock, Bernd ; Lundholm, Nina
Presented at:
18. Danske Havforskermøde

Type: Conference abstract for conference

Status: Published     |    År: 2015

  PDF

Winter−spring transition in the subarctic Atlantic: microbial response to deep mixing and pre-bloom production

Paulsen, Maria Lund ; Riisgaard, Karen ; Thingstad, T. Frede ; St. John, Michael ; Nielsen, Torkel Gissel
in: Aquatic Microbial Ecology, vol: 76, issue: 1, pages: 49-69

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2015     |    DOI: https://doi.org/10.3354/ame01767

 

Zooplankton vertical migration in the polar night – Is migration more “random” than diel during the darkest period of winter?

Grenvald, Julie Cornelius ; Nielsen, Torkel Gissel ; Darnis, Gerard ; Berge, Jørgen ; Renaud, Paul
Presented at:
18. Danske Havforskermøde

Type: Conference abstract for conference

Status: Published     |    År: 2015

2014
  PDF

Biogeography of key mesozooplankton species in the North Atlantic, by manual counting methods, and egg production of Calanus finmarchicus

Melle, W. ; Runge, J. A. ; Head, E. ; Plourde, S. ; Castellani, C. ; Licandro, P. ; Pierson, J. ; Jonasdottir, S. H. ; Johnson, C. ; Broms, C. ; Debes, H. ; Falkenhaug, T. ; Gaard, E. ; Gislason, A. ; Heath, M. R. ; Niehoff, B. ; Nielsen, Torkel Gissel ; Pepin, P. ; Stenevik, E. K. ; Chust, G.
in: Earth System Science Data Discussions, vol: 7, issue: 1, pages: 225-242

Type: Journal article

Status: Published     |    År: 2014     |    DOI: https://doi.org/10.5194/essdd-7-225-2014

  PDF

Bridging the gap between marine biogeochemical and fisheries sciences; configuring the zooplankton link

Mitra, Aditee ; Castellani, Claudia ; Gentleman, Wendy ; Jonasdottir, Sigrun ; Flynn, Kevin J. ; Bode, Antonio ; Halsband, Claudia ; Kuhn, Penelope ; Licandro, Priscilla ; Agersted, Mette Dalgaard ; Calbet, Albert ; Lindeque, Penelope ; Koppelmann, Rolf ; Møller, Eva Friis ; Nielsen, Torkel Gissel ; St. John, Michael ; Gislason, Astthor
in: Progress in Oceanography, vol: 129, issue: Part B, pages: 176-199

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2014

 

Den truede ål under lup

Reeh, Line ; Munk, Peter ; Pedersen, Michael Ingemann ; Riemann, Lasse ; Nielsen, Torkel Gissel
in: Aktuel Naturvidenskab, issue: 1, pages: 38-42

Type: Journal article

Status: Published     |    År: 2014

 

Description of Pyramimonas diskoicola sp. nov. and the importance of the flagellate Pyramimonas (Prasinophyceae) in Greenland sea ice during the winter–spring transition

Harðardóttir, Sara ; Lundholm, Nina ; Moestrup, Øjvind ; Nielsen, Torkel Gissel
in: Polar Biology, vol: 37, issue: 10, pages: 1479-1494

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2014     |    DOI: https://doi.org/10.1007/s00300-014-1538-2

 

Evaluating pyrene toxicity on Arctic key copepod species Calanus hyperboreus

Nørregaard, Rasmus Dyrmose ; Nielsen, Torkel Gissel ; Friis Møller, Eva ; Strand, Jakob ; Espersen, Laila Stougaard Kofoed ; Møhl, Malene
in: Ecotoxicology, vol: 23, issue: 2, pages: 163-174

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2014     |    DOI: https://doi.org/10.1007/s10646-013-1160-z

 
 

Genome- and transcriptome-assisted development of nuclear insertion/deletion markers for Calanus species (Copepoda: Calanoida) identification

Smolina, I. ; Kollias, S. ; Poortvliet, M. ; Nielsen, Torkel Gissel ; Lindeque, P. ; Castellani, C. ; Møller, E.F. ; Blanco-Bercial, L. ; Hoarau, G.
in: Molecular Ecology Resources, vol: 14, issue: 5, pages: 1072-1079

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2014     |    DOI: https://doi.org/10.1111/1755-0998.12241

 

Importance of deep mixing for initiating the North Atlantic spring bloom

Riisgaard, Karen ; Paulsen, Maria Lund ; Thingstad, T. Frede ; Nielsen, Torkel Gissel
Presented at:
ESSAS Annual Science Meeting

Type: Conference abstract for conference

Status: Published     |    År: 2014

 

Krill community composition and grazing biology in a sub-Arctic Greenlandic fjord

Teglhus, Frederik Wolff ; Agersted, Mette Dalgaard ; Arendt, Kristine Engel ; Nielsen, Torkel Gissel
Presented at:
ESSAS Annual Science Meeting

Type: Conference abstract for conference

Status: Published     |    År: 2014

 

Krill diversity and population structure along the sub-Arctic Godthåbsfjord, SW Greenland

Agersted, Mette Dalgaard ; Nielsen, Torkel Gissel
in: Journal of Plankton Research, vol: 36, issue: 3, pages: 800-815

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2014     |    DOI: https://doi.org/10.1093/plankt/fbt139

 

Live discrimination of Calanus glacialis and C. finmarchicus females: can we trust phenological differences?

Nielsen, Torkel Gissel ; Kjellerup, Sanne ; Smolina, Irina ; Hoarau, Galice ; Lindeque, Penelope
in: Marine Biology, vol: 161, issue: 6, pages: 1299-1306

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2014     |    DOI: https://doi.org/10.1007/s00227-014-2419-5

 

Population dynamics and life history strategies of the dominant copepods in a sub-arctic Greenlandic fjord

Kjellerup, Sanne ; Nielsen, Torkel Gissel
Presented at:
ESSAS Annual Science Meeting

Type: Conference abstract for conference

Status: Published     |    År: 2014

 

Stratification-mixing cycles and plankton dynamics in a shallow estuary (Limfjord, Denmark)

Teixeira, Isabel G. ; Crespo, Bibiani G. ; Nielsen, Torkel Gissel ; Figueiras, Francisco G.
in: Journal of Plankton Research, vol: 36, issue: 2, pages: 475-489

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2014     |    DOI: https://doi.org/10.1093/plankt/fbt107

 

The Mystery of Microsetella – Combination of egg- and broadcast spawning in an Arctic fjord?

Koski, Marja ; Swalethorp, Rasmus ; Kjellerup, Sanne ; Nielsen, Torkel Gissel
in: Journal of Plankton Research, vol: 36, issue: 1, pages: 259-264

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2014     |    DOI: https://doi.org/10.1093/plankt/fbt117

  PDF

The North Atlantic Ocean as habitat for Calanus finmarchicus: environmental factors and life history traits

Melle, Webjørn ; Runge, Jeffrey A. ; Head, Erica ; Plourde, Stéphane ; Castellani, Claudia ; Licandro, Priscilla ; Pierson, James ; Jonasdottir, Sigrun ; Johnson, Catherine ; Broms, Cecilie ; Debes, Høgni ; Falkenhaug, Tone ; Gaard, Eilif ; Gislason, Astthor ; Heath, Michael R. ; Niehoff, Barbara ; Nielsen, Torkel Gissel ; Pepin, Pierre ; Stenevik, Erling Kaare ; Chust, Guillem
in: Progress in Oceanography, vol: 129 B, pages: 244-284

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2014     |    DOI: https://doi.org/10.1016/j.pocean.2014.04.026

 

Toxic diatoms in the Arctic marine food web

Hardardottir, Sara ; Pancic, Marina ; Tammilehto, Anna ; Krock, B. ; Nielsen, Torkel Gissel ; Lundholm, Nina

Type: Poster

Status: Published     |    År: 2014

  PDF

Trophic position of coexisting krill species: a stable isotope approach

Agersted, Mette Dalgaard ; Bode, Antonio ; Nielsen, Torkel Gissel
in: Marine Ecology Progress Series, vol: 516, pages: 139-151

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2014     |    DOI: https://doi.org/10.3354/meps11055

  PDF

Trophic role and top-down control of a subarctic protozooplankton community

Riisgaard, Karen ; Swalethorp, Rasmus ; Kjellerup, Sanne ; Juul-Pedersen, Thomas ; Nielsen, Torkel Gissel
in: Marine Ecology Progress Series, vol: 500, pages: 67-82

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2014     |    DOI: https://doi.org/10.3354/meps10706

2013
 

Biological oceanography across the Southern Indian Ocean – basinscale trends in the zooplankton community

Jonasdottir, Sigrun ; Nielsen, Torkel Gissel ; Borg, Christian Marc Andersen ; Møller, Eva Friis ; Jakobsen, Hans Henrik ; Satapoomin, Suree
in: Deep-Sea Research Part I: Oceanographic Research Papers, vol: 75, pages: 16-27

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2013     |    DOI: https://doi.org/10.1016/j.dsr.2013.01.011

  PDF

Distinct communities of free-living and copepod-associated microorganisms along a salinity gradient in Godthåbsfjord, West Greenland

Dziallas, Claudia ; Grossart, Hans-Peter ; Tang, Kam W. ; Nielsen, Torkel Gissel
in: Arctic, Antarctic, and Alpine Research, vol: 45, issue: 4, pages: 471-480

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2013     |    DOI: https://doi.org/10.1657/1938-4246.45.4.471

  PDF

Early development of Calanus hyperboreus nauplii: Response to a changing ocean

Jung-Madsen, Signe ; Nielsen, Torkel Gissel ; Grønkjær, Peter ; Hansen, Benni Winding ; Møller, Eva Friis
in: Limnology and Oceanography, vol: 58, issue: 6, pages: 2109-2121

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2013     |    DOI: https://doi.org/10.4319/lo.2013.58.6.2109

 

Effects of pyrene exposure and temperature on early development of two co-existing Arctic copepods

Grenvald, Julie Cornelius ; Nielsen, Torkel Gissel ; Hjorth, Morten
in: Ecotoxicology, vol: 22, pages: 184-198

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2013     |    DOI: https://doi.org/10.1007/s10646-012-1016-y

 

Effekt af øget pH på forårsopblomstringen i Arktis

Riisgaard, Karen ; Hansen, Per Juel ; Nielsen, Torkel Gissel
Presented at:
17. Danske havforskermøde

Type: Poster

Status: Published     |    År: 2013

 

Fødenet udsat for langvarig eksponering af olie ved sub-letale koncentrationer– en overset fare ved Arktis’ olieeventyr

Espersen, Laila Stougaard Kofoed ; Møhl, Malene ; Møller, Eva Friis ; Nielsen, Torkel Gissel
Presented at:
17. Danske havforskermøde

Type: Conference abstract for conference

Status: Published     |    År: 2013

 

Food preferences in Atlantic cod larvae, Gadus morhua, in Godthåbsfjord, Greenlandic waters

Malanski, Evandro ; Swalethorp, Rasmus ; Munk, Peter ; Nielsen, Torkel Gissel
Presented at:
37th Annual Larval Fish Conference

Type: Conference abstract for conference

Status: Published     |    År: 2013