Daniel Conley

Department of Marine Ecology

National Environmental Research Institute

P.O. Box 358

DK-4000 Roskilde


Tel. +45 4630 1263

Fax +45 4630 1114

Email: [email protected]


Since 1995 employed as Senior Scientist in Marine Ecology and is currently an external Professor at the Department of Marine Ecology, Aarhus University with expertise in global biogeochemical cycles.

PhD in 1987 from the Department of Oceanic Sciences, University of Michigan, USA.


Research Interests:

Global biogeochemical cycles, especially Si.

Use of palaeoecological techniques to study eutrophication and climate.

Management of aquatic ecosystems.



Recent publications (since 2001):


Andersen, J. H., D, J. Conley and S. Hedal. 2004. Palaeoecology, reference conditions and classification of ecological status: The EU Water Framework Directive in practice. Mar. Poll. Bull. Accepted.


Carstensen, J., D. J. Conley, and P. Henriksen. 2004. Frequency, composition, and causes of summer phytoplankton blooms in a shallow coastal ecosystem, the Kattegat. Limnol. Oceanogr. 49: 191-201.


Danielsson, Å., L. Rahm, D.J. Conley and J.C. Carstensen. 2004. Identification of characteristic regions and representative stations: a study of water quality variables in the Kattegat.  Environ. Monitor. Assess. 90: 202-224.


Clarke, A., S. Juggins, and D. J. Conley. 2003. A 150-year reconstruction of the history of coastal eutrophication in Roskilde Fjord, Denmark. Mar. Poll. Bull. 46: 1614-1617.


Carstensen, J., D. J. Conley, and B. Müller-Karulis. 2003. Spatial and temporal resolution of carbon fluxes in a shallow coastal ecosystem, the Kattegat. Mar. Ecol. Prog. Ser. 252: 35-50.


Conley, D.J., C. Humborg, L. Rahm, O.P. Savchuk, and F. Wulff. 2002. Hypoxia in the Baltic Sea and basin-scale changes in phosphorus biogeochemistry. Environ. Sci. Tech. 36: 5315-5320.


Conley, D.J. 2002. Terrestrial ecosystems and the global biogeochemical silica cycle. Global Biogeochem. Cycles 16: 1121, doi:10.1029/2002GB001894.


Conley, D.J., S. Markager, J. Andersen, T. Ellermann, and L.M. Svendsen. 2002. Coastal eutrophication and the Danish National Aquatic Monitoring and Assessment Program. Estuaries 25: 706-719.


Björck, S., O. Bennike, P. Rosén, C.S. Andresen, S. Bohncke, E. Kaas, and D. Conley. 2002. Anomalously mild Younger Dryas summer conditions in southern Greenland. Geology 30: 427-430.


MacKensie, B. R., J. Alheit, D.J. Conley, P. Holm, C. Kinze. 2002. Ecological hypotheses for a historical reconstruction of upper trophic level biomass in the Baltic Sea and Skagerrak. Can. J. Fish. Aquat. Sci.. 59:173-190.


Björck, S., R. Muscheler, B. Kromer, C.S. Andresen, J. Heinemeier, S.J. Johnsen, D. Conley, N. Koç, M. Spurk, and S. Veski. 2001. High-resolution analyses of an early Holocene climate event may imply decreased solar forcing as an important climate trigger. Geology  29: 1107–1110.


Conley, D.J. and C.L. Schelske. 2001. Biogenic silica. In Tracking Environmental Change Using Lake Sediments: Biological Methods and Indicators, Smol, J. P., H. J. B. Birks & W. M. Last, (Editors), Kluwer Academic Press, pp. 281-293.


Conley, D.J. and A.B. Josefson. 2001. Hypoxia, nutrient management and restoration in Danish waters. In Coastal Hypoxia: Consequences for Living Resources and Ecosystems, Rabalais, N.N. and R.E. Turner (eds.), Coastal and Estuarine Studies 58, American Geophysical Union, Washington, D.C., pp. 425-434.