Photo of Marja Koski
  • Kemitorvet, 202, 4136

    2800 Kgs. Lyngby

    Denmark

19952020

Research output per year

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Research Output

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Journal article
2020

The missing piece of the upper mesopelagic carbon budget? Biomass, vertical distribution and feeding of aggregate-associated copepods at the PAP site

Koski, M., Valencia, B., Newstead, R. & Thiele, C., 2020, In : Progress in Oceanography. 181, 102243.

Research output: Contribution to journalJournal articleResearchpeer-review

2019

Copepod carcasses in the subtropical convergence zone of the Sargasso Sea: implications for microbial community composition, system respiration and carbon flux

Tang, K. W., Backhaus, L. L. V., Riemann, L., Koski, M., Grossart, H-P., Munk, P. & Nielsen, T. G., 2019, In : JOURNAL OF PLANKTON RESEARCH. 41, 4, p. 549-560

Research output: Contribution to journalJournal articleResearchpeer-review

2018

Copepods boost the production but reduce the carbon export efficiency by diatoms

Moricea, B., Iversen, M. H., Gallinar, M., Evertsen, A-J. O., Le Goff, M., Beker, B., Boutorh, J., Corvaisier, R., Coffineau, N., Donval, A., Giering, S. L. C., Koski, M., Lambert, C., Lampit, R. S., Le Mercier, A., Masson, A., Stibor, H., Stockenreiter, M. & De La Rocha, C. L., 2018, In : Frontiers in Marine Science. 5, 15 p., 82.

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
File
223 Downloads (Pure)

Metagenomic insights into zooplankton-associated bacterial communities

De Corte, D., Srivastava, A., Koski, M., Garcia, J. A. L., Takaki, Y., Yokokawa, T., Nunoura, T., Elisabeth, N. H., Sintes, E. & Herndl, G. J., 2018, In : Environmental Microbiology. 20, 2, p. 492-405

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
File
260 Downloads (Pure)

Towards control of unwanted cyst-forming dinoflagellates in aquaculture systems: Knockout and recovery of Pfiesteria sp. after peracetic acid exposure

Pinyol Gallemi, A., Pedersen, L-F. & Koski, M., 2018, In : Aquaculture Research. 49, 11, p. 3682-3685

Research output: Contribution to journalJournal articleResearchpeer-review

Feeding on dispersed vs. aggregated particles: The effect of zooplankton feeding behavior on vertical flux

Koski, M., Boutorh, J. & De La Rocha, C. L., 2017, In : P L o S One. 12, 5, e0177958.

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
File
394 Downloads (Pure)

Prevalence and risk factors associated with Theileria parva infection in cattle in three regions of Tanzania

Kerario, I. I., Simuunza, M. C., Chenyambuga, S. W., Koski, M., Hwang, S-G. & Muleya, W., 2017, In : Tropical Animal Health and Production. 49, 8, p. 1613-1621

Research output: Contribution to journalJournal articleResearchpeer-review

2015

Exposure factors for marine eutrophication impacts assessment based on a mechanistic biological model

Cosme, N. M. D., Koski, M. & Hauschild, M. Z., 2015, In : Ecological Modelling. 317, p. 50-63

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
File
403 Downloads (Pure)
2014

Does copepod size determine food consumption of particulate feeding fish?

Deurs, M. V., Koski, M. & Rindorf, A., 2014, In : ICES Journal of Marine Science. 71, 1, p. 35-43

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
File
132 Downloads (Pure)

The Biological carbon pump in the North Atlantic

Sanders, R., Henson, S. A., Koski, M., De La Rocha, C. L., Painter, S. C., Poulton, A. J., Riley, J., Salihoglu, B., Visser, A., Yool, A., Bellerby, R. & Martin, A. P., 2014, In : Progress in Oceanography. 129 B, p. 200-218

Research output: Contribution to journalJournal articleResearchpeer-review

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

Koski, M., Swalethorp, R., Kjellerup, S. & Nielsen, T. G., 2014, In : Journal of Plankton Research. 36, 1, p. 259-264

Research output: Contribution to journalJournal articleResearchpeer-review

2013

Copepods use chemical trails to find sinking marine snow aggregates

Lombard, F., Koski, M. & Kiørboe, T., 2013, In : Limnology and Oceanography. 58, 1, p. 185-192

Research output: Contribution to journalJournal articleResearchpeer-review

File
332 Downloads (Pure)
2012

The effect of egg versus seston quality on hatching success, naupliar metabolism and survival of Calanus finmarchicus in mesocosms dominated by Phaeocystis and diatoms

Koski, M., Yebra, L., Dutz, J., Jonasdottir, S., Vidoudez, C., Jakobsen, H. H., Pohnert, G. & Nejstgaard, J., 2012, In : Marine Biology. 159, 3, p. 643-660

Research output: Contribution to journalJournal articleResearchpeer-review

2011

Biological processes in the North Sea: vertical distribution and reproduction of neritic copepods in relation to environmental factors

Koski, M., Jonasdottir, S. & Bagøien, E., 2011, In : Journal of Plankton Research. 33, 1, p. 85-103

Research output: Contribution to journalJournal articleResearchpeer-review

Extensive cross-disciplinary analysis of biological and chemical control of Calanus finmarchicus reproduction during an aldehyde forming diatom bloom in mesocosms

Jonasdottir, S., Dutz, J., Koski, M., Yebra, L., Jakobsen, H. H., Vidoudez, C., Pohnert, G. & Nejstgaard, J. C., 2011, In : Marine Biology. 158, 9, p. 1943-1963

Research output: Contribution to journalJournal articleResearchpeer-review

File
369 Downloads (Pure)

Strain-related physiological and behavioral effects of Skeletonema marinoi on three common planktonic copepods

Md Amin, R., Koski, M., Båmstedt, U. & Vidoudez, C., 2011, In : Marine Biology. 158, 9, p. 1965-1980

Research output: Contribution to journalJournal articleResearchpeer-review

2010

Seasonal changes in food quantity and quality of the common North Sea copepods Temora longicornis and Pseudocalanus elongatus: a bioassay approach

Koski, M., Dutz, J., Klein Breteler, W., Rampen, S. & Noordeloos, A., 2010, In : Marine Ecology - Progress Series. 399, p. 141-155

Research output: Contribution to journalJournal articleResearchpeer-review

2009

Glutathione transferase activity and oocyte development in copepods exposed to toxic phytoplankton

Kozlowsky-Suzuki, B., Koski, M., Hallberg, E., Wallén, R. & Carlsson, P., 2009, In : Harmful Algae. 8, 3, p. 395-406

Research output: Contribution to journalJournal articleResearchpeer-review

2008

Copepod reproduction is unaffected by diatom aldehydes or lipid composition

Dutz, J., Koski, M. & Jonasdottir, S., 2008, In : Limnology and Oceanography. 53, 1, p. 225-235

Research output: Contribution to journalJournal articleResearchpeer-review

"Good" and "bad" diatoms: development, growth and juvenile mortality of the copepod Temora longicornis on diatom diets

Koski, M., Wichard, T. & Jonasdottir, S., 2008, In : Marine Biology. 154, 4, p. 719-734

Research output: Contribution to journalJournal articleResearchpeer-review

Production, oxygen respiration rates, and sinking velocity of copepod fecal pellets: Direct measurements of ballasting by opal and calcite

Ploug, H., Iversen, M. H., Koski, M. & Buitenhuis, E. T., 2008, In : Limnology and Oceanography. 53, 2, p. 469-476

Research output: Contribution to journalJournal articleResearchpeer-review

Prymnesium parvum exotoxins affect the grazing and viability of the calanoid copepod Eurytemora affinis

Sopanen, S., Koski, M., Uronen, P., Kuupo, P., Lehtinen, S., Legrand, C. & Tamminen, T., 2008, In : Marine Ecology - Progress Series. 361, p. 191-202

Research output: Contribution to journalJournal articleResearchpeer-review

2007

Disruption of microbial food web and inhibition of metazooplankton development in the presence of iron and DOM-stimulated Baltic Sea cyanobacteria

Kozlowsky-Suzuki, B., Karjalainen, M., Koski, M., Carlsson, P., Stolte, W., Balode, M. & Granéli, E., 2007, In : Marine Ecology - Progress Series. 337, p. 15-26

Research output: Contribution to journalJournal articleResearchpeer-review

High reproduction of Calanus finmarchicus during a diatom-dominated spring bloom

Koski, M., 2007, In : Marine Biology. 151, 5, p. 1785-1798

Research output: Contribution to journalJournal articleResearchpeer-review

Supplemental effects of diet mixing on absorption of ingested organic carbon in the marine copepod Acartia tonsa

Thor, P., Koski, M., Tang, K. W. & Jonasdottir, S., 2007, In : Marine Ecology - Progress Series. 331, p. 131-138

Research output: Contribution to journalJournal articleResearchpeer-review

The fate of discarded appendicularian houses: degradation by the copepod, Microsetella norvegica , and other agents

Koski, M., Møller, E. F., Maar, M. & Visser, A., 2007, In : Journal of Plankton Research. 29, 7, p. 641-654

Research output: Contribution to journalJournal articleResearchpeer-review

Zooplankton grazing on Phaeocystis : a quantitative review and future challenges

Nejstgaard, J. C., Tang, K. W., Steinke, M., Dutz, J., Koski, M., Antajan, E. & Long, J. L., 2007, In : Biogeochemistry. 83, 1/3, p. 147-172

Research output: Contribution to journalJournal articleResearchpeer-review

2006

Life-stage-specific differences in exploitation of food mixtures: diet mixing enhances copepod egg production but not juvenile development

Koski, M., Breteler, W. K., Schogt, N., Gonzalez, S. & Jakobsen, H. H., 2006, In : Journal of Plankton Research. 28, 10, p. 919-936

Research output: Contribution to journalJournal articleResearchpeer-review

Post-bloom feeding of Calanus finmarchicus copepodites: Selection for autotrophic versus heterotrophic prey

Koski, M. & Riser, C. W., 2006, In : Marine Biology Research. 2, 2, p. 109-119

Research output: Contribution to journalJournal articleResearchpeer-review

Toxic haptophyte Prymnesium parvum affects grazing, survival, egestion and egg production of the calanoid copepods Eurytemora affinis and Acartia bifilosa

Sopanen, S., Koski, M., Kuupo, P., Uronen, P., Legrand, C. & Tamminen, T., 2006, In : Marine Ecology - Progress Series. 327, p. 223-232

Research output: Contribution to journalJournal articleResearchpeer-review

Trophic significance of solitary cells of the prymnesiophyte Phaeocystis globosa depends on cell type

Dutz, J. & Koski, M., 2006, In : Limnology and Oceanography. 51, 3, p. 1230-1238

Research output: Contribution to journalJournal articleResearchpeer-review

2005

Benthic life in the pelagic: Aggregate encounter and degradation rates by pelagic harpacticoid copepods

Koski, M., Kiørboe, T. & Takahashi, K., 2005, In : Limnology and Oceanography. 50, 4, p. 1254-1263

Research output: Contribution to journalJournal articleResearchpeer-review

Selective grazing of Temora longicornis in different stages of a Phaeocystis globosa bloom - a mesocosm study

Koski, M., Dutz, J. & Breteler, W. C. M. K., 2005, In : Harmful Algae. 4, 5, p. 915-927

Research output: Contribution to journalJournal articleResearchpeer-review

2004

Role of essential lipids in copepod nutrition: no evidence for trophic upgrading of food quality by a marine ciliate

Klein Breteler, W., Koski, M. & Rampen, S., 2004, In : Marine Ecology - Progress Series. 274, p. 199-208

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
File
345 Downloads (Pure)
2003

Development and grazing of Temora longicornis (Copepoda, Calanoida) nauplii during nutrient limited Phaeocystis globosa blooms in mesocosms

Klein Breteler, W. & Koski, M., 2003, In : Hydrobiologia. 491, 1-3, p. 185-192

Research output: Contribution to journalJournal articleResearchpeer-review

Feeding, reproduction and toxin accumulation by the copepods Acartia bifilosa and Eurytemora affinis in the presence of the toxic cyanobacterium Nodularia spumigena

Kozlowsky-Suzuki, B., Karjalainen, M., Lehtiniemi, M., Engström-Öst, J., Koski, M. & Carlsson, P., 2003, In : Marine Ecology Progress Series. 249, p. 237-249

Research output: Contribution to journalJournal articleResearchpeer-review

Influence of diet on copepod survival in the laboratory

Koski, M. & Klein Breteler, W., 2003, In : Marine Ecology Progress Series. 264, p. 73-82

Research output: Contribution to journalJournal articleResearchpeer-review

2002

Calanoid copepods feed and produce eggs in the presence of toxic cyanobacteria Nodularia spumigena

Koski, M., Schmidt, K., Engström-Öst, J., Viitasalo, M., Jonasdottir, S., Repka, S. & Sivonen, K., 2002, In : Limnology and Oceanography. 47, p. 878-885

Research output: Contribution to journalJournal articleResearchpeer-review

Copepod hatching success in marine ecosystems with high diatom concentrations.

Irigoien, X., Harris, R. P., Verheye, H. M., Joly, P., Runge, J., Starr, M., Pond, D., Campbell, R., Shreeve, R., Ward, P., Smith, A. N., Dam, H. G., Peterson, W., Tirelli, V., Koski, M., Smith, T., Harbour, D. & Davidson, R., 2002, In : Nature. 419, 6905, p. 387-389

Research output: Contribution to journalJournal articleResearchpeer-review

Development of Baltic Sea zooplankton in the presence of a toxic cyanobacterium: a mesocosm approach

Schmidt, K., Koski, M., Engström-öst, J. & Atkinson, A., 2002, In : Journal of Plankton Research. 24, 10, p. 979-992

Research output: Contribution to journalJournal articleResearchpeer-review

Effects of toxic cyanobacteria on plankton assemblage : community development during decay of Nodularia spumigena

Engström-Öst, J., Koski, M., Schmidt, K., Viitasalo, M., Jonasdottir, S., Kokkonen, M., Repka, S. & Sivonen, K., 2002, In : Marine Ecology - Progress Series. 232, p. 1-14

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
File
286 Downloads (Pure)

Stoichiometry of mesozooplankton in N- and P-limited areas of the Baltic Sea

Pertola, S., Koski, M. & Viitasalo, M., 2002, In : Marine Biology (Berlin). 140, 2, p. 425-434

Research output: Contribution to journalJournal articleResearchpeer-review

2000

Feeding interactions of the copepods Eurytemora affinis and Acartia bifilosa with the cyanobacteria Nodularia sp. Short Communications

Engstrom, J., Koski, M., Viitasalo, M., Reinikainen, M., Repka, S. & Sivonen, K., 2000, In : JOURNAL OF PLANKTON RESEARCH. 22, 7, p. 1403-1409

Research output: Contribution to journalJournal articleResearchpeer-review

1999

Carbon : nitrogen ratios of Baltic Sea copepods - indication of mineral limitation? Short Communications

Koski, M., 1999, In : JOURNAL OF PLANKTON RESEARCH. 21, 8, p. 1565-1573

Research output: Contribution to journalJournal articleResearchpeer-review

Is Prymnesium patelliferum toxic for copepods? Grazing, egg production, and egestion of the calanoid copepod Eurytemora affinis in mixtures of "good" and "bad" food

Koski, M., Rosenberg, M., Viitasalo, M., Tanskanen, S. & Sjolund, U., 1999, In : ICES Journal of Marine Science. 56, Supplement, p. 131-139

Research output: Contribution to journalJournal articleResearchpeer-review

Reproduction and survival of the calanoid copepod Eurytemora affinis fed with toxic and non-toxic cyanobacteria

Koski, M., Engstrom, J. & Viitasalo, M., 1999, In : MARINE ECOLOGY-PROGRESS SERIES. 186, p. 187-197

Research output: Contribution to journalJournal articleResearchpeer-review

Seasonal development of mesozooplankton biomass and production on the SW coast of Finland

Koski, M., Viitasalo, M. & Kuosa, H., 1999, In : Ophelia. 50, 2, p. 69-91

Research output: Contribution to journalJournal articleResearchpeer-review

Sedimentation of copepod fecal material in the coastal northern Baltic Sea: Where did all the pellets go?

Viitasalo, M., Rosenberg, M., Heiskanen, A-S. & Koski, M., 1999, In : Limnology and Oceanography. 44, 6, p. 1388-1399

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
File
169 Downloads (Pure)