Niels Jepsen

Niels Jepsen

Senior Researcher

DTU AQUA
National Institute of Aquatic Resources

Section for Freshwater Fisheries Ecology

Technical University of Denmark

Vejlsøvej 39

Building Silkeborg-039, room 0

8600 Silkeborg

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2020
 

Marine mortality in the river? Atlantic salmon smolts under high predation pressure in the last kilometres of a river monitored for stock assessment

Flávio, Hugo de Moura ; Kennedy, Richard ; Ensing, Dennis ; Jepsen, Niels ; Aarestrup, Kim
in: Fisheries Management and Ecology, vol: 27, issue: 1, pages: 92-101

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2020     |    DOI: https://doi.org/10.1111/fme.12405

2019
 

A comparative study of three different methods for assessing fish communities in a small eutrophic lake

Ravn, Henrik Dalby ; Lauridsen, Torben Linding ; Jepsen, Niels ; Jeppesen, Erik ; Hansen, Peter Gruth ; Hansen, Johan Gruth ; Berg, Søren
in: Ecology of Freshwater Fish, vol: 28, issue: 2, pages: 341-352

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2019     |    DOI: https://doi.org/10.1111/eff.12457

 

Naturalised Atlantic salmon smolts are more likely to reach the sea than wild smolts in a lowland fjord

Flávio, Hugo de Moura ; Aarestrup, Kim ; Jepsen, Niels ; Koed, Anders
in: River Research and Applications, vol: 35, issue: 3, pages: 216-223

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2019     |    DOI: https://doi.org/10.1002/rra.3400

 

The impact of Cormorant predation on Atlantic salmon and Sea trout smolt survival

Jepsen, Niels ; Flávio, Hugo de Moura ; Koed, Anders
in: Fisheries Management and Ecology, vol: 26, issue: 2, pages: 183-186

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2019     |    DOI: https://doi.org/10.1111/fme.12329

2018
  PDF

Change of foraging behavior of cormorants and the effect on river fish

Jepsen, Niels ; Ravn, Henrik Dalby ; Pedersen, Stig
in: Hydrobiologia, vol: 820, issue: 1, pages: 189-199

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2018     |    DOI: https://doi.org/10.1007/s10750-018-3656-2

  PDF

Competition for the fish - fish extraction from the Baltic Sea by humans, aquatic mammals and birds

Hansson, Sture ; Bergström, Ulf ; Bonsdorff, E. ; Härkönen, Tero ; Jepsen, Niels ; Kautsky, Lena ; Lundström, Karl ; Lunneryd, Sven-Gunnar ; Overgaard, Maria ; Salminen, Juhani ; Sendek, Dmitry ; Vetemaa, Markus
in: ICES Journal of Marine Science, vol: 75, issue: 3, pages: 999-1008

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2018     |    DOI: https://doi.org/10.1093/icesjms/fsx207

 

Headwater streams in the EU Water Framework Directive: Evidence-based decision support to select streams for river basin management plans

Baattrup-Pedersen, Annette ; Larsen, Søren Erik ; Andersen, Dagmar K. ; Jepsen, Niels ; Nielsen, Jan ; Rasmussen, Jes
in: Science of the Total Environment, vol: 613-614, pages: 1048-1054

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2018     |    DOI: https://doi.org/10.1016/j.scitotenv.2017.09.199

2017
 

Cormorant predation overlaps with fish communities and commercial-fishery interest in a Swedish lake

Ovegård, K. M. ; Öhman, K. ; Mikkelsen, Jørgen Skole ; Jepsen, Niels
in: Marine and Freshwater Research, vol: 68, issue: 9, pages: 1677-1685

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2017     |    DOI: https://doi.org/10.1071/MF16227

  PDF

Performance of fast-absorbable suture and histo-glue in closing incisions in Brown trout

Jepsen, Niels ; Larsen, Martin Hage ; Aarestrup, Kim
in: Transactions of the American Fisheries Society, vol: 146, pages: 1233-1237

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2017     |    DOI: https://doi.org/10.1080/00028487.2017.1370016

  PDF

Pike (Esox lucius L.) on the edge: consistent individual movement patterns in transitional waters of the western Baltic

Jacobsen, Lene ; Bekkevold, Dorte ; Berg, Søren ; Jepsen, Niels ; Koed, Anders ; Aarestrup, Kim ; Baktoft, Henrik ; Skov, Christian
in: Hydrobiologia, vol: 784, issue: 1, pages: 143–154

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2017     |    DOI: https://doi.org/10.1007/s10750-016-2863-y

  PDF

Shining a light on the loss of rheophilic fish habitat in lowland rivers as a forgotten consequence of barriers and its implications for management

Birnie-Gauvin, Kim ; Aarestrup, Kim ; Riis, Torsten M. O. ; Jepsen, Niels ; Koed, Anders
in: Aquatic Conservation: Marine and Freshwater Ecosystems, vol: 27, issue: 6, pages: 1345-1349

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2017     |    DOI: https://doi.org/10.1002/aqc.2795

 

Snæblen - Vadehavets tiger

Jepsen, Niels
in: Nationalpark magasin, issue: 4, pages: 43-48

Type: Journal article

Status: Published     |    Year: 2017

 

Survival and growth compared between wild and farmed eel stocked in freshwater ponds

Pedersen, Michael Ingemann ; Jepsen, Niels ; Rasmussen, Gorm
in: Fisheries Research, vol: 194, pages: 112-116

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2017     |    DOI: https://doi.org/10.1016/j.fishres.2017.05.013

2016
 

Behov av nordiskt samarbete i skarvfrågan

Jepsen, Niels
in: Fiskeritidsskrift för Finland, issue: 2, pages: 9-12

Type: Journal article

Status: Published     |    Year: 2016

 

Merimetsot tulevat

Jepsen, Niels
in: Kalastaja, pages: 8-9

Type: Journal article

Status: Published     |    Year: 2016

 

Ten practical realities for Institutional Animal Care and Use Committees when evaluating protocols dealing with fish in the field

Cooke, Steven J. ; Wilson, Alexander D. M. ; Elvidge, Chris K. ; Lennox, Robert J. ; Jepsen, Niels ; Colotelo, Alison H. ; Brown, Richard S.
in: Reviews in Fish Biology and Fisheries, vol: 26, issue: 1, pages: 123-133

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2016     |    DOI: https://doi.org/10.1007/s11160-015-9413-y

2015
  PDF

The use of external electronic tags on fish: an evaluation of tag retention and tagging effects

Jepsen, Niels ; Thorstad, Eva B. ; Havn, Torgeir ; Lucas, Martyn C.
in: Animal Biotelemetry, vol: 3

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2015     |    DOI: https://doi.org/10.1186/s40317-015-0086-z

2014
  PDF

Cormorant predation on PIT-tagged lake fish

Skov, Christian ; Jepsen, Niels ; Baktoft, Henrik ; Jansen, Teunis ; Pedersen, Stig ; Koed, Anders
in: Journal of Limnology, vol: 73, issue: 1, pages: 177-186

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2014     |    DOI: https://doi.org/10.4081/jlimnol.2014.715

  PDF

Does cortisol manipulation influence outmigration behaviour, survival and growth of sea trout? A field test of carryover effects in wild fish

Midwood, Jonathan D. ; Larsen, Martin Hage ; Boel, Mikkel ; Jepsen, Niels ; Aarestrup, Kim ; Cook, Steven J.
in: Marine Ecology Progress Series, vol: 496, pages: 135-144

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2014     |    DOI: https://doi.org/10.3354/meps10524

 

Effect of boat noise and angling on lake fish behaviour

Jacobsen, Lene ; Baktoft, Henrik ; Jepsen, Niels ; Aarestrup, Kim ; Berg, Søren ; Skov, Christian
in: Journal of Fish Biology, vol: 84, issue: 6, pages: 1768-1780

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2014     |    DOI: https://doi.org/10.1111/jfb.12395

 

Rovfisk på menuen

Skov, Christian ; Jepsen, Niels ; Baktoft, Henrik ; Koed, Anders
in: Sportsfiskeren, issue: 1, pages: 14-15

Type: Journal article

Status: Published     |    Year: 2014

 

Rovfisk på menuen

Skov, Christian ; Jepsen, Niels ; Baktoft, Henrik ; Koed, Anders
in: Fritidsfiskeren, vol: 34, issue: 2, pages: 14

Type: Journal article

Status: Published     |    Year: 2014

 

Skader skarven søerne

Skov, Christian ; Jepsen, Niels ; Baktoft, Henrik ; Koed, Anders
in: Sportsfiskeren, issue: 1, pages: 16-17

Type: Journal article

Status: Published     |    Year: 2014

 

Skarvprædation på søfisk: Et indblik fra Viborg Søerne

Skov, Christian ; Jepsen, Niels ; Baktoft, Henrik ; Pedersen, Stig ; Koed, Anders
in: Vand & Jord, vol: 21, issue: Marts, pages: 34-38

Type: Journal article

Status: Published     |    Year: 2014

 

Tagging fish in the field: Ethical and procedural considerations

Jepsen, Niels ; Aarestrup, Kim ; Cooke, Steven J.
in: Journal of Fish and Wildlife Management, vol: 5, issue: 2, pages: 441-444

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2014     |    DOI: https://doi.org/10.3996/122013-JFWM-077

 

Uhyggeligt besøg hos skarverne på Ormø

Jepsen, Niels
in: Danske Fritidsfiskere, issue: 4, pages: 31

Type: Journal article

Status: Published     |    Year: 2014

2013
 

Betydningen af skarvernes prædation på fiskebestandene

Jepsen, Niels
in: Miljø- & vandpleje, issue: 38, pages: 18-25

Type: Journal article

Status: Published     |    Year: 2013

  PDF

Does the level of asepsis impact the success of surgically implanting tags in Atlantic salmon?

Jepsen, Niels ; Boutrup, Torsten S. ; Midwood, Jonathan D. ; Koed, Anders
in: Fisheries Research, vol: 147, pages: 344-348

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2013     |    DOI: https://doi.org/10.1016/j.fishres.2013.07.017

2012
  PDF

Decline of the North Sea houting: protective measures for an endangered anadromous fish

Jepsen, Niels ; Deacon, Michael ; Koed, Anders
in: Endangered Species Research, vol: 16, pages: 77-84

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2012     |    DOI: https://doi.org/10.3354/esr00386

 

Loss of European silver eel passing a hydropower station

Pedersen, Michael Ingemann ; Jepsen, Niels ; Aarestrup, Kim ; Koed, Anders ; Pedersen, Stig ; Økland, F.
in: Journal of Applied Ichthyology, vol: 28, issue: 2, pages: 189-193

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2012     |    DOI: https://doi.org/10.1111/j.1439-0426.2011.01913.x

 

Seasonal and diel effects on the activity of northern pike studied by high-resolution positional telemetry

Baktoft, Henrik ; Aarestrup, Kim ; Berg, Søren ; Boel, Mikkel ; Jacobsen, Lene ; Jepsen, Niels ; Koed, Anders ; Svendsen, Jon Christian ; Skov, Christian
in: Ecology of Freshwater Fish, vol: 21, issue: 3, pages: 386-394

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2012     |    DOI: https://doi.org/10.1111/j.1600-0633.2012.00558.x

2011
 

European silver eel migration and fisheries induced mortality in the Havel river system

Simon, J. ; Berends, K. ; Dörner, H. ; Jepsen, Niels ; Fladung, E.
in: River Research and Applications, vol: 28, issue: 9, pages: 1510-1518

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2011     |    DOI: https://doi.org/10.1002/rra.1530

 

Hvorfor er stallingen i kraftig tilbagegang?

Jepsen, Niels
in: Ferskvandsfiskeribladet, vol: 109, issue: 2

Type: Journal article

Status: Published     |    Year: 2011

 

Return of the king – The recovery of Danish salmon stocks

Jepsen, Niels
in: Pool 32 Magazine, issue: April, pages: 196-223

Type: Journal article

Status: Published     |    Year: 2011

 

Skarv bekymrer sportsfiskerne

Jepsen, Niels ; Rasmussen, K.
in: Sportsfiskeren, issue: April

Type: Journal article

Status: Published     |    Year: 2011

 

Skarven har ikke skylden for alle problemer

Jepsen, Niels
in: Danske Fritidsfiskere, issue: April, pages: 22-24

Type: Journal article

Status: Published     |    Year: 2011

 

Skarven i Danmark og den nye forvaltningsplan – en status

Jepsen, Niels ; Bregnballe, T.
in: Geirfuglen

Type: Journal article

Status: Published     |    Year: 2011

 

Status for skarven i Danmark

Jepsen, Niels ; Bregnballe, T.
in: Ferskvandsfiskeribladet, vol: 109, issue: 2

Type: Journal article

Status: Published     |    Year: 2011

2010
 

Fiskene og vandrammedirektivet

Jepsen, Niels
in: Miljø- & vandpleje, vol: 35, pages: 20-26

Type: Journal article

Status: Published     |    Year: 2010

 

Survival and progression rates of large European silver eel Anguilla anguilla in late freshwater and early marine phases

Aarestrup, Kim ; Thorstad, Eva B. ; Koed, Anders ; Svendsen, Jon Christian ; Jepsen, Niels ; Pedersen, Michael Ingemann ; Økland, Finn
in: Aquatic Biology, vol: 9, issue: 3, pages: 263-270

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2010     |    DOI: https://doi.org/10.3354/ab00260

 

The use of coded wire tags to estimate cormorant predation on fish stocks in an estuary

Jepsen, Niels ; Klenke, Reinhard ; Sonnesen, Per Michael ; Bregnballe, Thomas
in: Marine and Freshwater Research, vol: 61, issue: 3, pages: 320-329

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2010

2009
 

Store opstemninger - store udfordringer

Jepsen, Niels
in: Miljø- & vandpleje, issue: 34, pages: 12-16

Type: Journal article

Status: Published     |    Year: 2009

2008
 

De vestjyske fjorde: 11. Skrubber som skarvføde

Nicolajsen, Hanne ; Bregnballe, Thomas ; Sonnesen, Per ; Jepsen, Niels
in: Nyhedsbrev / Samarbejdsprojekt om skarvregulering og fiskebestandene i de vestjyske fjorde, vol: 4, issue: 4, pages: 33-34

Type: Journal article

Status: Published     |    Year: 2008

 

Effects of tag and suture type on survival and growth of brown trout with surgically implanted telemetry tags in the wild

Jepsen, Niels ; Mikkelsen, Jørgen Skole ; Koed, Anders
in: Journal of Fish Biology, vol: 72, issue: 3, pages: 594-602

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2008     |    DOI: https://doi.org/10.1111/j.1095-8649.2007.01724.x

 

Survival and behaviour of European silver eel in late freshwater and early marine phase during spring migration

Aarestrup, Kim ; Thorstad, E.B. ; Koed, Anders ; Jepsen, Niels ; Svendsen, Jon Christian ; Pedersen, Michael Ingemann ; Skov, Christian ; Okland, F.
in: Fisheries Management and Ecology, vol: 15, issue: 5-6, pages: 435-440

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2008     |    DOI: https://doi.org/10.1111/j.1365-2400.2008.00639.x

 

The level of predation used as an indicator of tagging/handling effects

Jepsen, Niels ; Christoffersen, Mads Ole ; Munksgaard, T.
in: Fisheries Management and Ecology, vol: 15, issue: 5-6, pages: 365-368

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2008     |    DOI: https://doi.org/10.1111/j.1365-2400.2008.00623.x

 

The recent invasion of Rutilus rutilus (L.) (Pisces: Cyprenidae) in a large South-Alpine lake: Lago Maggiore

Volta, Pietro ; Jepsen, Niels
in: Journal of Limnology, vol: 67, issue: 2, pages: 163-170

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2008

2007
 

Effects of salmon lice infection and salmon lice protection on fjord migrating Atlantic salmon and brown trout post-smolts

Sivertsgard, Rolf ; Thorstad, Eva B. ; Okland, Finn ; Finstad, Bengt ; Bjorn, Pal Arne ; Jepsen, Niels ; Nordal, Trude ; McKinley, R. Scott
in: Hydrobiologia, vol: 582, pages: 35-42

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2007     |    DOI: https://doi.org/10.1007/978-1-4020-6237-7_5

2006
 

Evaluation of three telemetry transmitter attachment methods for female silver-phase American eels ( Anguilla rostrata Lesueur)

Cottrill, R.A. ; Økland, F. ; Aarestrup, Kim ; Jepsen, Niels ; Koed, Anders ; Hunter, K.J. ; Butterworth, K.G. ; McKinley, R.S.
in: Journal of Great Lakes Research, vol: 32, issue: 3, pages: 502-511

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2006     |    DOI: https://doi.org/10.3394/0380-1330(2006)32[502:EOTTTA]2.0.CO;2

 

Observations of predation on salmon and trout smolts in a river mouth

Jepsen, Niels ; Holthe, E. ; Økland, F.
in: Fisheries Management and Ecology, vol: 13, issue: 5, pages: 341-343

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2006     |    DOI: https://doi.org/10.1111/j.1365-2400.2006.00509.x

 

Preface to the Silkeborg conference issue

Jacobsen, Lene ; Koed, Anders ; Aarestrup, Kim ; Skov, Christian ; Jepsen, Niels ; Berg, Søren
in: Ecology of Freshwater Fish, vol: 15, issue: 2

Type: Journal article

Status: Published     |    Year: 2006

 

Skarvers fødevalg i Ringkøbing Fjord

Jepsen, Niels
in: Nyhedsbrev / Samarbejdsprojekt om skarvregulering og fiskebestandene i de vestjyske fjorde, vol: 3, issue: 3, pages: 6-8

Type: Journal article

Status: Published     |    Year: 2006

 

Swimming speeds and orientation of wild Atlantic salmon post-smolts during the first stage of the marine migration: Management and ecological notes

Økland, F. ; Thorstad, E.B. ; Finstad, B. ; Sivertsgård, R. ; Plantalech, N. ; Jepsen, Niels ; McKinley, R.S.
in: Fisheries Management and Ecology, vol: 13, issue: 4, pages: 271-274

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2006     |    DOI: https://doi.org/10.1111/j.1365-2400.2006.00498.x

 

The return of the king. The recovery of Danish salmon stocks

Jepsen, Niels
in: Atlantic Salmon Journal, issue: Spring, pages: 58-62

Type: Journal article

Status: Published     |    Year: 2006

2005
 

Movement and mortality of stocked brown trout in a stream

Aarestrup, Kim ; Jepsen, Niels ; Koed, Anders ; Pedersen, Stig
in: Journal of Fish Biology, vol: 66, issue: 3, pages: 721-728

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2005     |    DOI: https://doi.org/10.1111/j.1095-8649.2005.00634.x

 

Skarvers prædation af fisk i Ringkjøbing Fjord

Jepsen, Niels ; Sonnesen, P.
in: Amatørfiskeren, vol: 5, pages: 16-18

Type: Journal article

Status: Published     |    Year: 2005

 

Undersøgelser af skarvers prædation af fisk i Ringkøbing Fjord

Jepsen, Niels ; Sonnesen, P.
in: Nyhedsbrev / Samarbejdsprojekt om skarvregulering og fiskebestandene i de vestjyske fjorde, vol: 2, issue: 2, pages: 9-11

Type: Journal article

Status: Published     |    Year: 2005

2004
 

Does roach behaviour differ between shallow lakes of different environmental state?

Jacobsen, Lene ; Berg, Søren ; Jepsen, Niels ; Skov, Christian
in: Journal of Fish Biology, vol: 65, issue: 1, pages: 135-147

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2004

 

Hvor mange fisk spiser skarverne

Jepsen, Niels ; Sonnesen, P.
in: Nyhedsbrev / Samarbejdsprojekt om skarvregulering og fiskebestandene i de vestjyske fjorde, vol: 1, issue: 1, pages: 6-8

Type: Journal article

Status: Published     |    Year: 2004

 

Varde Å - 50 km forhindringsløb for laks

Jepsen, Niels ; Deacon, M.
in: Fisk og hav, issue: 57, pages: 4-12

Type: Journal article

Status: Published     |    Year: 2004

2003
 

Long-term retention of surgically implanted radio transmitters in pikeperch

Jepsen, Niels
in: Journal of Fish Biology, vol: 63, issue: 1, pages: 260-262

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2003

 

Skarver og fisk

Jepsen, Niels ; Bregnballe, T.
in: Fisk og hav, issue: 56, pages: 5-11

Type: Journal article

Status: Published     |    Year: 2003

 

Upstream migration of Atlantic salmon at a power station in the River Nidelva, Southern Norway

Thorstad, E.B. ; Økland, F. ; Kroglund, F. ; Jepsen, Niels
in: Fisheries Management and Ecology, vol: 10, issue: 3, pages: 139-146

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2003     |    DOI: https://doi.org/10.1046/j.1365-2400.2003.00335.x

2002
 

Activity and food choice of piscivorous perch ( Perca fluviatilis ) in a eutrophic shallow lake: a radio-telemetry study

Jacobsen, Lene ; Berg, Søren ; Broberg, M. ; Jepsen, Niels ; Skov, Christian
in: Freshwater Biology, vol: 47, issue: 12, pages: 2370-2379

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2002

 

Habitat use and foraging success of 0+pike ( Esox lucius L.) in experimental ponds related to prey fish, water transparency and light intensity

Skov, Christian ; Berg, Søren ; Jacobsen, Lene ; Jepsen, Niels
in: Ecology of Freshwater Fish, vol: 11, issue: 2, pages: 65-73

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2002

 

Initial mortality of radio-tagged Atlantic salmon ( Salmo salar L.) smolts following release downstream of a hydropower station

Koed, Anders ; Jepsen, Niels ; Aarestrup, Kim ; Nielsen, C.
in: Hydrobiologia, vol: 483, issue: 1-3, pages: 31-37

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2002

 

Mangfoldige Mekong - forvaltning af en livsnerve

Jepsen, Niels
in: Fisk og hav, issue: 54, pages: 34-41

Type: Journal article

Status: Published     |    Year: 2002

 

Surgical implantation of telemetry transmitters in fish : how much have we learned?

Jepsen, Niels ; Koed, Anders ; Thorstad, E.B. ; Baras, E.
in: Hydrobiologia, vol: 483, pages: 239-248

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2002

 

The use of winter refuges by roach tagged with miniature radio transmitters

Jepsen, Niels ; Berg, Søren
in: Hydrobiologia, vol: 483, issue: 1-3, pages: 167-173

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2002

 

Undersøgelser af skarvers påvirkning af fiskene i Ringkøbing og Nissum Fjorde

Jepsen, Niels
in: Nyhedsbrev for myndighedssamarbejdet om fiskeriet i Ringkøbing og Nissum fjorde, vol: 2, issue: 4, pages: 8-9

Type: Journal article

Status: Published     |    Year: 2002

 

Vandpleje øger fiskebestandene

Sivebæk, Finn ; Jepsen, Niels ; Aarestrup, Kim
in: www.fiskepleje.dk

Type: Journal article

Status: Published     |    Year: 2002

2001
 

Behavior of pike ( Esox lucius L.) >50 cm in a turbid reservoir and in a clearwater lake

Jepsen, Niels ; Beck, S. ; Skov, Christian ; Koed, Anders
in: Ecology of Freshwater Fish, vol: 10, issue: 1, pages: 26-34

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2001

 

The physiological response of chinook salmon smolts to two methods of radio-tagging

Jepsen, Niels ; Davis, L.E. ; Schreck, C.B. ; Siddens, B.
in: Transactions of the American Fisheries Society, vol: 130, issue: 3, pages: 495-500

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2001

2000
 

Behavioural interactions between prey (trout smolts) and predators (pike and pikeperch) in an impounded river

Jepsen, Niels ; Pedersen, Susanne ; Thorstad, E.
in: Regulated Rivers Research & Management, vol: 16, issue: 2, pages: 189-198

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2000

 

Prespawning migratory behaviour and spawning success of sea-ranched Atlantic salmon, Salmo salar L., in the River Gudenaa, Denmark

Aarestrup, Kim ; Jepsen, Niels ; Rasmusssen, Gorm ; Økland, F. ; Thorstad, E.B. ; Holdensgaard, G.
in: Fisheries Management and Ecology, vol: 7, issue: 5, pages: 387-400

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2000

1999
 

A comparison of the growth of radio-tagged and dye-marked pike

Jepsen, Niels ; Aarestrup, Kim
in: Journal of Fish Biology, vol: 55, issue: 4, pages: 880-883

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 1999

 

Geddens adfærd

Jepsen, Niels
in: Sportsfiskeren, vol: 74, issue: 4, pages: 32-33

Type: Journal article

Status: Published     |    Year: 1999

 

Movements of two strains of radio tagged Atlantic salmon, Salmo salar L., smolts through a reservoir

Aarestrup, Kim ; Jepsen, Niels ; Rasmusssen, Gorm ; Økland, F.
in: Fisheries Management and Ecology, vol: 6, issue: 2, pages: 97-107

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 1999

 

Sandartens adfærd

Jepsen, Niels
in: Sportsfiskeren, vol: 74, issue: 5, pages: 32-33

Type: Journal article

Status: Published     |    Year: 1999

 

The movements of pikeperch in a shallow reservoir

Jepsen, Niels ; Koed, Anders ; Økland, F.
in: Journal of Fish Biology, vol: 54, issue: 5, pages: 1083-1093

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 1999

1998
 

Spawning migration of sea trout ( Salmo trutta (L)) in a Danish river

Aarestrup, Kim ; Jepsen, Niels
in: Hydrobiologia, vol: 371-372, pages: 275-281

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 1998

 

Survival of radio-tagged Atlantic salmon ( Salmo salar L.) and trout ( Salmo trutta L.) smolts passing a reservoir during seaward migration

Jepsen, Niels ; Aarestrup, Kim ; Økland, F. ; Rasmussen, Gorm
in: Hydrobiologia, vol: 371-372, issue: 0, pages: 347-353

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 1998

 

Telemetri som metode i fiskeundersøgelser

Jepsen, Niels
in: Fisk & hav, vol: 48, pages: 48-51

Type: Journal article

Status: Published     |    Year: 1998

1996
 

Mortality of sea trout ( Salmo trutta L .) and Atlantic salmon ( S. salar L.) smolts during seaward migration through rivers and lakes in Denmark

Rasmussen, Gorm ; Aarestrup, Kim ; Jepsen, Niels
in: ICES CM 1996/, vol: M:9
Presented at:
ICES Council Meeting 1996

Type: Conference article

Status: Published     |    Year: 1996


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