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Items where Author is "Hagen, W."

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Article

Article
Kattner, G. , Graeve, M. and Hagen, W. (2012)
Energy reserves of Southern Ocean copepods: triacylglycerols with unusually long-chain monounsaturated fatty acids ,
Marine Chemistry, 138-13 , pp. 7-12 .
doi:10.1016/j.marchem.2012.05.002 , hdl:10013/epic.39691

Article
Wessels, H. , Karsten, U. , Wiencke, C. and Hagen, W. (2012)
Fatty acids as potential trophic markers in Arctic benthic systems: Feeding experiments with nine diets of macroalgae ,
Polar Biology., 35 , pp. 555-565 .
hdl:10013/epic.39036

Article
Pogoda, B. , Buck, B. H. and Hagen, W. (2011)
Growth performance and condition of oysters (Crassostrea gigas and Ostrea edulis) farmed in an offshore environment (North Sea, Germany) ,
Aquaculture 319: 484492 .
hdl:10013/epic.37997
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Article
Kreibich, T. , Saborowski, R. , Hagen, W. and Niehoff, B. (2011)
Influence of short-term nutritional variations on digestive enzyme and fatty acid patterns of the calanoid copepod Temora longicornis ,
Journal of Experimental Marine Biology and Ecology, 407 (2), pp. 182-189 .
doi:10.1016/j.jembe.2011.06.013 , hdl:10013/epic.38150

Article
Hu, M. Y. A. , Hagen, W. , Jeng, M. S. and Saborowski, R. (2011)
Metabolic energy demand and food utilization of the hydrothermal vent crab Xenograpusus testudinatus (Crustacea: Brachyura) ,
Aquatic Biology, 15 , pp. 11-25 .
doi:10.3354/ab00396 , hdl:10013/epic.39473
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Article
von Harbou, L. , Dubischar, C. , Pakhomov, E. A. , Hunt, B. P. V. , Hagen, W. and Bathmann, U. (2011)
Salps in the Lazarev Sea, Southern Ocean: I. Feeding dynamics ,
Marine Biology .
doi:10.1007/s00227-011-1709-4 , hdl:10013/epic.37908

Article
Brey, T. , Müller-Wiegmann, C. , Zittier, Z. and Hagen, W. (2010)
Body composition in aquatic organisms a global data bank of relationships between mass, elemental composition and energy content ,
Journal of Sea Research, 64 (3), pp. 334-340 .
doi:10.1016/j.seares.2010.05.002 , hdl:10013/epic.35575
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Article
Kruse, S. , Hagen, W. and Bathmann, U. (2010)
Feeding ecology and energetics of the Antarctic chaetognaths Eukrohnia hamata, E. bathypelagica and E. bathyantarctica ,
Marine Biology 157:, pp. 2289-2302 .
doi:10.1007/s00227-010-1496-3 , hdl:10013/epic.35694

Article
Kreibich, T. , Hagen, W. and Saborowski, R. (2010)
Food utilization of two pelagic crustaceans in the Greenland Sea: Meganyctiphanes norvegica (Euphausiacea) and Hymenodora glacialis (Decapoda, Caridea) ,
Marine ecology-progress series, 413 , pp. 105-115 .
doi:10.3354/meps08699 , hdl:10013/epic.35733
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Article
Linton, S. M. , Allardyce, B. J. , Hagen, W. , Wencke, P. and Saborowski, R. (2009)
Food utilisation and digestive ability of aquatic and semi-terrestrial crayfishes, Cherax destructor and Engaeus sericatus (Astacidae, Parastacidae) ,
Journal of Comparative Physiology B. .
doi:10.1007/s00360-008-0332-2 , hdl:10013/epic.31745
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Article
Pasternak, A. , Hagen, W. , Kattner, G. , Michels, J. , Graeve, M. and Schiel, S. (2009)
Lipid dynamics and feeding of dominant Antarctic calanoid copepods in the eastern Weddell Sea in December ,
Polar Biology, 32 (11), pp. 1597-1606 .
doi:10.1007/s00300-009-0658-6 , hdl:10013/epic.33503

Article
Gentsch, E. , Kreibich, T. , Hagen, W. and Niehoff, B. (2008)
Dietary shifts in the copepod Temora longicornis during spring: evidence from stable isotope signatures, fatty acid biomarkers and feeding experiments ,
Journal of Plankton Research, 31 (1), pp. 45-60 .
doi:10.1093/plankt/fbn097 , hdl:10013/epic.31695

Article
Molis, M. , Wessels, H. , Hagen, W. , Karsten, U. and Wiencke, C. (2008)
Do sulphuric acid and the brown alga Desmarestia viridis support community structure in Arctic kelp patches by altering grazing, distribution patterns, and behaviour of urchins? ,
Polar Biology, 32 , pp. 71-82 .
doi:10.1007/s00300-008-0504-2 , hdl:10013/epic.31639

Article
Schiel, S. , Niehoff, B. , Hagen, W. , Böttger-Schnack, R. , Cornils, A. , Dowidar, M. M. , Pasternak, A. , Stambler, N. , Stübing, D. and Richter, C. (2008)
Population dynamics and life strategies of Rhincalanus nasutus (Copepoda) at the onset of the spring bloom in the Gulf of Aqaba (Red Sea). ,
Journal of Plankton Research, 30 (6), pp. 655-672 .
doi:10.1093/plankt/fbn029 , hdl:10013/epic.32541

Article
Kreibich, T. , Saborowski, R. , Hagen, W. and Niehoff, B. (2008)
Short-term variation of nutritive and metabolic parameters in Temora longicornis females (Crustacea, Copepoda) as a response to diet shift and starvation ,
Helgoland Marine Research .
doi:10.1007/s10152-008-0112-0 , hdl:10013/epic.30281

Article
Kattner, G. , Hagen, W. , Lee, R. F. , Campbell, R. , Deibel, D. , Falk-Petersen, S. , Graeve, M. , Hansen, B. , Hirche, H. J. , Jónasdóttir, S. , Madsen, M. L. , Mayzaud, P. , Müller-Navarra, D. , Nichols, P. D. , Paffenhöfer, G. A. , Pond, D. , Saito, H. , Stübing, D. and Virtue, P. (2007)
Perspectives on marine zooplankton lipids ,
Canadian Journal of Fisheries and Aquatic Sciences. 64(11), pp. 1628-1639 .
doi:10.1139/F07-122 , hdl:10013/epic.28440
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Article
Renz, J. , Peters, J. , Hirche, H. J. and Hagen, W. (2006)
Does the calanoid copepod Pseudocalanus acuspes retain an arctic life cycle in the Central Baltic Sea? ,
Globec International Newsletter, 12 , pp. 71-73 .
hdl:10013/epic.24943

Article
Wessels, H. , Hagen, W. , Molis, M. , Wiencke, C. and Karsten, U. (2006)
Intra- and interspecific differences in palatability of Arctic macroalgae from Kongsfjorden (Spitsbergen) for two benthic sympatric invertebrates ,
Journal of experimental marine biology and ecology, 329 (1), pp. 20-33 .
doi:10.1016/j.jembe.2005.08.006 , hdl:10013/epic.22197
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Article
Lee, R. F. , Hagen, W. and Kattner, G. (2006)
Lipid storage in marine zooplankton ,
Marine ecology-progress series, 307 , pp. 273-306 .
hdl:10013/epic.23456

Article
Peters, J. , Renz, J. , van Beusekom, J. , Boersma, M. and Hagen, W. (2006)
Trophodynamics and Seasonal Cycle of the Copepod Pseudocalanus acuspes in the Central Baltic Sea (Bornholm Basin) evidence from lipid composition ,
Marine biology, 149 , pp. 1417-1429 .
doi:10.1007/s00227-006-0290-8 , hdl:10013/epic.24352
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Article
Mehrtens, F. , Stolpmann, M. , Buchholz, F. , Hagen, W. and Saborowski, R. (2005)
Locomotory activity and exploration behaviour of juvenile European lobsters (Homarus gammarus) in the laboratory ,
Marine and freshwater behaviour and physiology, 38 , pp. 105-116 .
doi:10.1080/10236240500104101 , hdl:10013/epic.22864
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Article
Cornils, A. , Schiel, S. , Hagen, W. , Dowidar, M. , Stambler, N. , Plähn, O. and Richter, C. (2005)
Spatial and temporal distribution of mesozooplankton in the Gulf of Aqaba and the northern Red Sea in February/March 1999 ,
Journal of Plankton Research, 27 (6), pp. 505-518 .
doi:10.1093/plankt/fbi023 , hdl:10013/epic.23475

Article
Thatje, S. , Lovrich, G. A. , Torres, G. , Hagen, W. and Anger, K. (2004)
Changes in biomass, lipid, fatty acid and elemental composition during abbreviated larval development of the subantarctic shrimp Campylonotus vagans ,
Journal of experimental marine biology and ecology, 301 (2), pp. 159-174 .
doi:10.1016/j.jembe.2003.09.019 , hdl:10013/epic.19756
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Article
Wessels, H. , Hagen, W. , Wiencke, C. and Karsten, U. (2004)
Trophic interactions between macroalgae and herbivores from Kongsfjorden (Svalbard) ,
Ber.Polarforsch.Meeresforsch, 492 , pp. 63-72 .
hdl:10013/epic.22160

Article
Dalsgaard, J. , St. John, M. , Kattner, G. , Müller-Navarra, D. and Hagen, W. (2003)
Fatty Acid Trophic Markers in the Pelagic Marine Environment ,
Advances in marine biology, 46 , pp. 225-340 .
hdl:10013/epic.20178

Article
Meyer, B. , Atkinson, A. , Stübing, D. , Oettl, B. , Hagen, W. and Bathmann, U. (2002)
Feeding and energy budget of Antarctic krill Euphausia superba at the onset of winter - I. Furcilia III larvae - ,
Limnology and Oceanography, 47 (4), pp. 943-952 .
hdl:10013/epic.15199
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Article
Atkinson, A. , Meyer, B. , Bathmann, U. , Stübing, D. , Hagen, W. and Schmidt, K. (2002)
Feeding and energy budget of Antarctic krill Euphausia superba at the onset of winter - II. Juveniles and adults - ,
Limnology and Oceanography, 47 (4), pp. 953-966 .
hdl:10013/epic.15200
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Article
Sommer, U. , Berninger, U. G. , Böttger-Schnack, R. , Cornils, A. , Hagen, W. , Hansen, T. , Najjar, T. A. , Post, A. F. , Schiel, S. , Stibor, H. , Stübing, D. and Wickham, S. (2002)
Grazing during early spring in the Gulf of Aqaba and the Northern Red Sea ,
Marine ecology-progress series, 239 , pp. 251-261 .
hdl:10013/epic.15987

Article
Hagen, W. , Kattner, G. , Terbrüggen, A. and Van Vleet, E. S. (2001)
Lipid metabolism of the Antarctic krill Euphausia superba and its ecological implications ,
Marine Biology, 139 (1), pp. 95-104 .
doi:10.1007/s002270000527 , hdl:10013/epic.14896

Article
Böttger-Schnack, R. , Hagen, W. and Schiel, S. (2001)
The microcopepod fauna in the Gulf of Aqaba, northern Red Sea: species diversity and distribution of Oncaeidae (Poecilostomatoida) ,
Journal of Plankton Research, 23 (9), 1029 - 1035 .
hdl:10013/epic.15515

Article
Schiel, S. , Hagen, W. , Dowidar, M. and Richter, C. (2000)
Distribution and ecophysiology of zooplankton ,
In: Östliches Mittelmeer - Nördlichers Rotes Meer 1999, Cruise No. 44, 22 Janauary-16 May 1999 (Eds. J. Pätzold, P.E. Halbach, G. Hempel and H. Weikert). METEOR-Berichte, Universität Hamburg, 00 , pp. 80-83 .
hdl:10013/epic.18412

Article
Falk-Petersen, S. , Hagen, W. , Kattner, G. , Clarke, A. and Sargent, J. (2000)
Lipids, trophic relationships, and biodiversity in Arctic and Antarctic krill ,
Canadian Journal of Fisheries and Aquatic SciencesSuppl. 3), 57 , pp. 178-191 .
hdl:10013/epic.11393

Article
Hagen, W. , Kattner, G. and Friedrich, C. (2000)
The lipid compositions of high-Antarctic notothenioid fish species with different life strategies ,
Polar Biology, 23 , pp. 785-791 .
hdl:10013/epic.14374

Article
Mumm, N. , Auel, H. , Hanssen, H. , Hagen, W. , Richter, C. and Hirche, H. J. (1998)
Breaking the ice, large scale distribution of mesozooplankton after a decade of Arctic and transpolar cruises ,
Polar biology, 20 , pp. 189-197 .
hdl:10013/epic.12755

Article
Kattner, G. , Hagen, W. , Graeve, M. and Albers, C. (1998)
Exceptional lipids and fatty acids in the pteropod Clione limacina (Gastropoda) from both polar oceans ,
Marine Chemistry, 61 , pp. 219-228 .
hdl:10013/epic.12216

Article
Kattner, G. and Hagen, W. (1998)
Lipid metabolism of the Antarctic euphausiid Euphausia crystallorophias and its ecological implications ,
Marine Ecology Progress Series, 170 , pp. 203-213 .
hdl:10013/epic.12215

Article
Hagen, W. and Kattner, G. (1998)
Lipid metabolism of the Antarctic euphausiid Thysanoessa macrura and its ecological implications ,
Limnology and Oceanography, 43 , pp. 1894-1901 .
hdl:10013/epic.11757

Article
Spindler, M. , Hagen, W. and Stübing, D. (1998)
Scientific cruise report of the Arctic expedition ARK-XIII/1 of RV "Polarstern" in 1997 ,
Reports on Polar Research, Alfred Wegener Institute for Polar and Marine Research, Bremerhaven, 296 .
hdl:10013/epic.13578

Article
Schiel, S. , Hagen, W. and Mizdalski, E. (1998)
Seasonal carbon dynamics of Antarctic copepods in the eastern Weddell Sea ,
Journal of marine systems, 17 , pp. 305-311 .
hdl:10013/epic.13400

Article
Kattner, G. , Hagen, W. , Falk-Petersen, S. , Sargent, J. R. and Henderson, R. J. (1996)
Antarctic krill Thysanoessa macrura fills a major gap in marine lipogenic pathways ,
Marine Ecology Progress Series, 134 , pp. 295-298 .
hdl:10013/epic.12213

Article
Hagen, W. and Schiel, S. (1996)
Seasonal lipid dynamics in dominant Antarctic copepods. Energy for overwintering or reproduction? ,
Deep-sea research i, 43 , pp. 139-158 .
hdl:10013/epic.11754

Article
Hagen, W. , van Vleet, E. S. and Kattner, G. (1996)
Seasonal lipid storage as overwintering strategy of Antarctic krill ,
Marine Ecology Progress Series, 134 , pp. 85-89 .
hdl:10013/epic.11755

Article
Albers, C. S. , Kattner, G. and Hagen, W. (1996)
The compositions of wax esters, triacylglycerols and phospholipids in Arctic and Antarctic copepods: evidence of energetic adaptations ,
Marine Chemistry, 55 , pp. 347-358 .
hdl:10013/epic.10630

Article
Schiel, S. and Hagen, W. (1995)
Life-cycle strategies of Calanoides acutus, Calanus propinquus and Metridia gerlachei (Copepoda Calanoida) in the eastern Weddell Sea, Antarctica ,
ICES journal of marine science, 52 , pp. 541-548 .
hdl:10013/epic.13398

Article
Hagen, W. , Kattner, G. and Graeve, M. (1995)
On the lipid biochemistry of polar copepods: compositional differences in the Antarctic calanoids Euchaeta antarctica and Euchirella rostromagna ,
Marine Biology, 123 , pp. 451-457 .
hdl:10013/epic.11749

Article
Kattner, G. and Hagen, W. (1995)
Polar herbivorous copepods - different pathways in lipid biosynthesis ,
Ices journal of marine science, 52 , pp. 329-335 .
hdl:10013/epic.12210

Article
Graeve, M. , Kattner, G. and Hagen, W. (1994)
Diet-induced changes in the fatty acid composition of Arctic herbivorous copepods: Experimental evidence of trophic markers ,
Journal of Experimental Marine Biology and Ecology, 182 , pp. 97-110 .
hdl:10013/epic.11643

Article
Graeve, M. , Hagen, W. and Kattner, G. (1994)
Herbivorous or omnivorous? On the significance of lipid compositions as trophic markers in Antarctic copepods ,
Deep-sea research i, 41 , pp. 915-924 .
hdl:10013/epic.11642

Article
Schiel, S. and Hagen, W. (1994)
Life cycle strategies and seasonal variations in distribution and population structure of four dominant calanoid copepod species in the eastern Weddell Sea, Antarctica ,
Journal of Plankton Research, 16 , pp. 1543-1566 .
hdl:10013/epic.13395

Article
Kattner, G. , Graeve, M. and Hagen, W. (1994)
Ontogenetic and seasonal changes in lipid and fatty acid/alcohol compositions of the dominant Antarctic copepods Calanus propinquus, Calanoides acutus and Rhincalanus gigas ,
Marine Biology, 118 , pp. 637-644 .
hdl:10013/epic.12207

Article
Hirche, H. J. , Hagen, W. , Mumm, N. and Richter, C. (1994)
The northeast water polynya, Greenland Sea III. Meso- and macrozooplankton distribution and production of dominant herbivorous copepods during spring. ,
Polar biology , 14 , pp. 491-503 .
hdl:10013/epic.11994

Article
Hagen, W. , Kattner, G. and Graeve, M. (1993)
Calanoides acutus and Calanus propinquus, Antarctic copepods with different lipid storage modes via wax esters or triacylglycerols ,
Marine Ecology-Progress Series, 97 , pp. 135-142 .
hdl:10013/epic.11746

Article
Schiel, S. , Hagen, W. , Klauke, U. , Miszdalski, E. , Pagès, F. , Probyn, T. , Stürcken-Rodewald, M. and Thomas, D. (1993)
Zooplankton ,
Berichte zur Polarforschung, 121 , pp. 75-84 .
hdl:10013/epic.18199

Article
Schiel, S. , Hagen, W. and Mizdalski, E. (1991)
Seasonal comparison of Calanoides acutus and Calanus propinquus (Copepoda Calanoida) in the southeastern Weddell Sea, Antarctica ,
Marine ecology-progress series, 70 , pp. 17-27 .
hdl:10013/epic.13393

Article
Fransz, H. G. , Hagen, W. , Hempel, I. , Marschall, H. P. , Marschall, S. , Mizdalski, E. and Schiel, S. (1987)
Zooplankton ,
Berichte zur Polarforschung, 39 , pp. 197-205 .
hdl:10013/epic.18203

Article
Hagen, W. and Kapp, H. (1986)
Heterokrohnia longicaudata, a new species of Chaetognatha from Antarctic waters ,
Polar Biol , 5 , pp. 181-183 .
hdl:10013/epic.11743

Article
Hagen, W. (1985)
On the distribution and population structure of Antarctic Chaetognatha ,
Meeresforsch , 30 , pp. 180-291 .
hdl:10013/epic.11742

Article
Kapp, H. and Hagen, W. (1985)
Two new species of Heterokrohnia (Chaetognatha) from Antarctic waters ,
Polar Biol , 4 , pp. 53-59 .
hdl:10013/epic.12166

Article
Fevolden, S. , Hagen, W. , Hempel, I. , Mizdalski, E. , Schiel, S. , Spindler, M. and Xiao, Y. (1985)
Zooplankton ,
Berichte zur Polarforschung, 25 , pp. 113-121 .
hdl:10013/epic.18206

Inbook

Inbook
Kattner, G. and Hagen, W. (2009)
Lipids in marine copepods: Latitudinal characteristics and perspective to global warming ,
Lipids in Aquatic Ecosystems / Hrsg. Michael T. Arts; Hrsg. Michael T. Brett; Hrsg. Martin Kainz . New York, NY : Springer New York, ISBN: 978-0-387-88607-7 .
doi:10.1007/978-0-387-89366-2_11 , hdl:10013/epic.32794

Inbook
Auel, H. , Hagen, W. and Schiel, S. (2009)
Size does matter - in the sea of giants and dwarfs. ,
In: Biological Studies in Polar Ocenas. Exploration of Life in Icy Waters. Gotthilf and Irmtraut Hempel (eds.). NW Verlag Bremerhaven, Germany.. .
hdl:10013/epic.36766

Inbook
Hagen, W. , Schiel, S. , Pasternak, A. and Auel, H. (2009)
Survival under extreme conditios - life strategies of polar zooplankton. ,
In: Biological Studies in Polar Oceans. Exploration of Life in Ica Waters. Gotthilf and Irmtraut Hempel (eds.). NW Verlag Bremerhaven, Germany, ISBN: 978-3-86509-865-8 .
hdl:10013/epic.36765

Inbook
Schiel, S. , Auel, H. and Hagen, W. (2009)
Zooplankton of the Southern Ocean - abundance, distribution and composition. ,
In: Biological Studies in Polar Oceans. Exploration of Life in Icy Waters. Gotthilf and Irmtraut Hempel (eds.). NW Verlag Bremerhaven, Germany, ISBN: 978-3-86509-865-8 .
hdl:10013/epic.35783

Thesis

Thesis -PhD
Hagen, W. (1988)
Zur Bedeutung der Lipide im antarktischen Zooplankton ,
PhD thesis,
hdl:10013/epic.11744

Conference

Conference -Talk
Pogoda, B. , Buck, B. H. and Hagen, W. (2011)
Oysters - Successful candidates for open ocean aquaculture ,
1st International Conference on Marine Resources and Beyond, Session on Mariculture Innovations: Offshore aquaculture, 5-7 September 2011, Bremerhaven (Germany). .
hdl:10013/epic.38075

Conference -Talk
von Harbou, L. , Dubischar, C. , Pakhomov, E. A. , Peeken, I. , Hunt, B. , Hagen, W. and Bathmann, U. (2010)
New Insights into Salp Ecology in the Lazarev Sea, Southern Ocean ,
IPY Oslo science conference 2010, Oslo, Norway. .
hdl:10013/epic.35726

Conference -Poster
Schukat, A. , Saborowski, R. and Hagen, W. (2009)
Food utilization of the Antarctic euphausiids Eupausia superba and Thysanoessa macrura: ontogenetic and seasonal variations of digestive enzymes ,
3rd GLOBEC Open Science Meeting (22. - 26. June), Victoria, BC, Canada. .
hdl:10013/epic.32817

Conference -Conference paper
Kreibich, T. , Saborowski, R. , Hagen, W. and Niehoff, B. (2009)
Influence of short-term nutritional variations on digestive enzyme and fatty acid patterns of the calanoid copepod Temora longicornis ,
ICES CM 2009/A:15. .
hdl:10013/epic.33393

Conference -Talk
Kreibich, T. , Saborowski, R. , Hagen, W. and Niehoff, B. (2009)
Influence of short-term nutritional variations on digestive enzyme and fatty acid patterns of the calanoid copepod Temora longicornis ,
ICES 2009 Annual Science Conference, September 21 - 25, Berlin, Germany. .
hdl:10013/epic.33394

Conference -Talk
Schukat, A. , Saborowski, R. and Hagen, W. (2009)
Seasonal changes of lipid composition and enzyme activities of the Antarctic euphausiids Euphausia superba and Thysanoessa macrura ,
14. Crustaceologen-Tagung, 2 - 5 April 2009, Rostock, Germany. .
hdl:10013/epic.32458

Conference -Poster
Sahlmann, C. , Hagen, W. and Saborowski, R. (2009)
Seasonal patterns of digestive enzyme expression and fatty acid composition in the midgut gland of the brown shrimp Crangon crangon ,
14. Crustaceologen-Tagung, 2 - 5 April 2009, Rostock, Germany. .
hdl:10013/epic.32460

Conference -Talk
Niehoff, B. , Kreibich, T. , Blank, H. , Brüll, V. , Ohlf, P. , Boersma, M. and Hagen, W. (2009)
The response of Centropages typicus to changing food conditions: results from time?series sampling and laboratory experiments ,
ICES Annual Science Meeting, Berlin, September 2009. .
hdl:10013/epic.33387

Conference -Talk
Hu, M. Y. , Saborowski, R. , Hagen, W. and Jeng, M. S. (2008)
On the feeding physiology of the hydrothermal vent crab Xenograpsus testudinatus (Decapoda, Brachyura). ,
Society for Experimetal Biology, Annual Main Meeting (6. - 10. July), Marseille, France. .
hdl:10013/epic.30938

Conference -Talk
Kattner, G. , Hagen, W. and Graeve, M. (2008)
Phospholipids of marine zooplankton: high polyunsaturation in polar and tropical species ,
ASLO Summer meeting, 8-13 June, St. John's, Canada. .
hdl:10013/epic.31032

Conference -Poster
Kreibich, T. , Gentsch, E. , Hansen, B. , Saborowski, R. , Hagen, W. and Niehoff, B. (2007)
Adaptation of lipolytic enzyme pattern and response in the fatty acid composition of Temora longicornis females (Calanoida, Copepoda) due to different diets under laboratory conditions ,
4th International Zooplankton Production Symposium, May 28 June 1 2007, Hiroshima, Japan. .
hdl:10013/epic.27423

Conference -Talk
Stumpp, M. , Liu, H. T. H. , Hagen, W. , Redecke, L. , Linton, S. and Saborowski, R. (2007)
Cellulose digestion in terrestrial and marine decapods from Taiwan. ,
24th Annual Meeting of the Australian and New Zealand Society of Comparative Physiology and Biochemistry, (1 2 December), Perth, Australia. .
hdl:10013/epic.30357

Conference -Poster
Saborowski, R. , Allardyce, B. , Wencke, P. , Hagen, W. and Linton, S. (2007)
Digestive abilities of aquatic and semi-terrestrial crayfishes Cherax destructor and Engaeus sericatus ,
24th Annual Meeting of the Australian and New Zealand Society of Comparative Physiology and Biochemistry, (1 2 December), Perth, Australia. .
hdl:10013/epic.30264

Conference -Talk
Pöhlmann, K. , Hagen, W. and Saborowski, R. (2007)
Lipidzusammensetzung und Verdauungsenzymaktivitäten in der Nordseegarnele Crangon crangon ,
13. Crustaceologen-Tagung, 15 - 18 März 2007, Frankfurt/M, Germany. .
hdl:10013/epic.26631

Conference -Talk
Molis, M. , Wessels, H. , Hagen, W. , Karsten, U. and Wiencke, C. (2006)
Der Säureschutzmantel von Alaria esculenta: assoziative Verteidigung im Kongsfjord, Spitzbergen ,
11. Wissenschaftliche Tagung der Sektion Phykologie in der Deutschen Botanischen Gesellschaft, 28.-31. August, Helgoland, Deutschland. .
hdl:10013/epic.25688

Conference -Poster
Zimmer, I. , Plötz, J. , Bornemann, H. , Ancel, A. and Hagen, W. (2006)
Foraging ecology of emperor penguins. ,
MARCOPOLI Midterm Review: Evaluation of the AWI by the Scientific Advisory Board of the Alfred Wegener Institute for Polar and Marine Research, 2223 May 2006, Bremerhaven, Germany. .
hdl:10013/epic.25645
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Conference -Talk
Niehoff, B. , Kreibich, T. and Hagen, W. (2006)
From dormancy to activity: Life cycle strategies of the Arctic copepods Calanus glacialis and C. hyperboreus during the winter-spring transition. ,
38th International Liége Colloquium on Ocean Dynamics. Revisiting the role of zooplankton in pelagic ecosystems, 8-12 May, Liége, Belgium. .
hdl:10013/epic.25980

Conference -Poster
Kreibich, T. , Gentsch, E. , Hansen, B. , Hagen, W. and Niehoff, B. (2006)
Physiological adaptations of Temora longicornis females (Crustacea, Copepoda) to changing environmental conditions in the North Sea ,
38th International Liège Colloquium On Ocean Dynamics: Revisiting the Role (or Status) of Zooplankton in Pelagic Ecosystems. May 8-12, Liège, Belgium. .
hdl:10013/epic.25999

Conference -Talk
Kreibich, T. , Hagen, W. and Saborowski, R. (2005)
Food utilization in two crustaceans from Greenland Sea waters ,
12. Crustaceologen-Tagung, 17. - 20. Feb., Wilhelmshaven, Germany. .
hdl:10013/epic.23290

Conference -Talk
Laakmann, S. , Saborowski, R. and Hagen, W. (2005)
Reproduktionsstrategien und Ernährungsökologie zweier dominanter Copepodenarten der Nordsee - ein Vergleich ,
12. Crustaceologen-Tagung, 17-20 Feb., Wilhelmshaven, Germany. .
hdl:10013/epic.23291

Conference -Poster
Peters, J. , Renz, J. , van Beusekom, J. , Boersma, M. and Hagen, W. (2005)
Trophodynamics and life cycle strategies of the copepod Pseudocalanus acuspes in the central Baltic Sea: evidence from lipid composition ,
ASLO Summer Meeting, Santiago de Compostella, Spain.-24. June 2005. .
hdl:10013/epic.25753

Conference -Talk
Böer, M. , Gannefors, C. , Kattner, G. , Graeve, M. , Hagen, W. and Falk-Petersen, S. (2004)
Are exceptional lipids responsible for the evolutionary success of the pteropod genus Clione (Gastropoda) in Antarctic and Arctic waters? ,
XXVIII SCAR Open science Conference,26-28 July, Bremen. .
hdl:10013/epic.22193

Conference -Talk
Peters, J. , Dutz, J. , Renz, J. and Hagen, W. (2004)
On the nutritional condition and lipid composition of three different trophic level components (seston, copepods, sprat larvae) in the Bornholm Basin, Baltic Sea ,
ICES Annual Science Conference 2004, 22.-25. Sept., Vigo, Spain. .
hdl:10013/epic.22281

Conference -Poster
Peters, J. , Renz, J. and Hagen, W. (2004)
Seasonality of lipid composition - indication of food quality and trophodynamics in Baltic Sea copepods? ,
Globec-Germany, Statusseminar, 20.-22. Januar, Hamburg. .
hdl:10013/epic.22279

Conference -Poster
Wessels, H. , Hagen, W. , Wiencke, C. and Karsten, U. (2003)
Defence-mechanisms against grazing in Arctic macoalgae of the Kongsfjord/Spitsbergen ,
Book of Abstracts Third European Phycological Congress, Queens University Belfast, 21-26 July 2003, P .
hdl:10013/epic.19893

Conference -Poster
Peters, J. , Renz, J. and Hagen, W. (2003)
Seasonality of lipid composition - indication of food quality and trophodynamics in Baltic Sea copepods? ,
3rd International Zooplankton Production Symposium, Gijon, Spain, May 20-23 .
hdl:10013/epic.24513

Conference -Poster
Kattner, G. and Hagen, W. (2002)
Antarctic euphausiids (krill): Life strategies, lipid metabolism and role in the ecosystem ,
GLOBEC 2nd Open Science Meeting, Qingdao, China. .
hdl:10013/epic.20476

Conference -Talk
Meyer, B. , Atkinson, A. , Stübing, D. , Hagen, W. and Bathmann, U. (2002)
Feeding and energy budgets of Antarctic krill Euphausia superba at the onset of winter in the Lazarev Sea (juveniles, adults furcilia III larvae) ,
Ocean Science Meeting (11-15 February), Honolulu, Hawaii .
hdl:10013/epic.16765

Conference -Talk
Hagen, W. , Kattner, G. and Stübing, D. (2002)
The Role of Lipids in the Life Strategies of the Antarctic Krill ,
ASLO Ocean Sciences Meeting, Honolulu, USA. .
hdl:10013/epic.20472

Conference -Talk
Kattner, G. , Graeve, M. and Hagen, W. (2002)
Variability and biosynthesis of lipids in polar zooplankton and their energetic value in the ecosystem ,
ASLO 2002 Summer Meeting, Victoria, Kanada. .
hdl:10013/epic.20473

Conference -Talk
Kattner, G. and Hagen, W. (2001)
Life Strategies and lipid metabolism of Antarctic euphausiids (krill) ,
20. Internationale Polartagung, Dresden. .
hdl:10013/epic.20465

Conference -Poster
Böer, M. , Stübing, D. , Hagen, W. and Kattner, G. (2001)
Membrane adaptation in Antarctic and Arctic euphausiids: modulation of lipid class and fatty acid compositions - a temperature adaptation ,
VIIIth SCAR Antarctic Biology Symposium, Amsterdam, Die Niederlande. .
hdl:10013/epic.20466

Conference -Poster
Kattner, G. , Graeve, M. and Hagen, W. (2000)
Exceptional lipids and fatty acids in the pteropod Clione limacina ,
Joint International Congress and Expo "Lipids, Fats and Oils", Würzburg. .
hdl:10013/epic.20464

Conference -Talk
Falk-Petersen, S. , Hagen, W. , Kattner, G. , Clarke, A. and Sargent, J. R. (1999)
Lipids - key components of dominant species of Arctic and Antarctic krill ,
Second International Symposium on Krill at the University of California, Santa Cruz, USA. .
hdl:10013/epic.20450

Conference -Talk
Kattner, G. and Hagen, W. (1999)
The potential of fatty acids as biomarkers. ,
ASLO Aquatic Sciences Meeting, Santa Fe, USA. .
hdl:10013/epic.20445

Conference -Poster
Falk-Petersen, S. , Hagen, W. , Kattner, G. , Clarke, A. and Sargent, J. R. (1999)
The role of lipids in relation to the ecology and biodiversity or Arctic and Antarctic krill ,
50th Anniversary Meeting of the Norwegian Society of Ocean Researchers. .
hdl:10013/epic.20454

Conference -Poster
Hagen, W. and Kattner, G. (1998)
Energetische Anpassungen an eine extreme Umwelt: Zur Rolle der Lipide im polaren Zooplankton ,
DFG-Berichtskolloquium "Koordiniertes Programm Antarktisforschung", München .
hdl:10013/epic.20494

Conference -Poster
Kattner, G. , Graeve, M. and Hagen, W. (1998)
Exceptional lipids and fatty acids in the pteropod Clione limacina ,
Conference on Marine Lipids, Brest. - 20.11.98. .
hdl:10013/epic.20190

Conference -Poster
Kattner, G. and Hagen, W. (1998)
Life Strategies and Lipid Metabolism of Polar Copepods ,
33rd EMBS, Wilhelmshaven. .
hdl:10013/epic.20495

Conference -Talk
Hagen, W. , Kattner, G. , Sargent, J. R. and Falk-Petersen, S. (1998)
Life cycle strategies and the lipid diversity of polar zooplankton. ,
30th International Liege Colloquium on Ocean Hydrodynamics, Liège, Belgien. - 08.05.98. .
hdl:10013/epic.20188

Conference -Conference paper
Kattner, G. and Hagen, W. (1996)
Lipid biosynthesis in Antarctic krill ,
EOS .
hdl:10013/epic.12212

Conference -Conference paper
Hagen, W. , Kattner, G. and Vleet, E. S. V. (1996)
Seasonal lipid dynamics of dominant Antarctic krill species ,
EOS .
hdl:10013/epic.11753

"Berichte zur Polar- und Meeresforschung"

"Berichte zur Polar- und Meeresforschung" Expedition reports
Spindler, M. , Hagen, W. and Stübing, D. (1998)
Scientific cruise report of the Arctic Expedition ARK-XIII/1 of RV "Polarstern" in 1997 = Wissenschaftlicher Fahrtbericht über die Arktis-Expedition ARK-XIII/1 von 1997 mit FS "Polarstern" ,
Berichte zur Polarforschung (Reports on Polar Research), Bremerhaven, Alfred Wegener Institute for Polar and Marine Research, 296 , 65 p. .
hdl:10013/epic.10299
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"Berichte zur Polar- und Meeresforschung" PhD
Hagen, W. (1988)
Zur Bedeutung der Lipide im antarktischen Zooplankton = On the significance of lipids in Antarctic zooplankton ,
Berichte zur Polarforschung (Reports on Polar Research), Bremerhaven, Alfred Wegener Institute for Polar and Marine Research, 49 , 129 p. .
hdl:10013/epic.10049
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