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Marine Ecology Progress Series

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MEPS is a leading hybrid research journal on all aspects of marine, coastal and estuarine ecology. Priority is given to outstanding research that advances our ecological understanding.

Online: ISSN 1616-1599

Print: ISSN 0171-8630

DOI: https://doi.org/10.3354/meps

Volume contents
Mar Ecol Prog Ser 302:219-232 (2005)

DOI: https://doi.org/10.3354/meps302219

copied

Population dynamics of cod Gadus morhua in the North Sea region: biological density-dependent and climatic density-independent effects

ABSTRACT: Through the statistical modeling of monitoring data, we assess the ecological interlinkages between cod Gadus morhua L. in the North Sea, Skagerrak and Kattegat—regions which typically have been considered separate management units. The model includes both within-population density dependence (within and between age classes), as well as density-dependent effects of migration between the North Sea, Skagerrak and Kattegat. Further, the model incorporates the effects of environmental features (such as temperature and the North Atlantic Oscillation). The obtained results are discussed, both with reference to general ecological principles as well as with respect to management implication. Altogether our analysis suggests a unified management regime for the entire region including the North Sea, the open Skagerrak and Kattegat.

KEYWORDS

GAMNAONorth Sea–Skagerrak–Kattegat systemTime-series modelingTransport effect

Qingxian Chen (Co-author)

  • New York State Office of Mental Health, 44 Holland Avenue, Albany, New York 12229, USA

Kung-Sik Chan (Co-author)

  • Department of Statistics and Actuarial Science, University of Iowa, Iowa City, Iowa 52242, USA

Kyrre Lekve (Co-author)

  • Centre for Ecological and Evolutionary Synthesis (CEES), Department of Biology, University of Oslo, PO Box 1050 Blindern, 0316 Oslo, Norway

Else Torstensen (Co-author)

  • Institute of Marine Research, Flødevigen Marine Research Station, 4817 His, Norway

Jakob Gjøsæter (Co-author)

  • Institute of Marine Research, Flødevigen Marine Research Station, 4817 His, Norway

Geir Ottersen (Co-author)

  • Institute of Marine Research, PO Box 1870 Nordnes, 5817 Bergen, Norway

Nils Chr. Stenseth (Corresponding Author)

  • Centre for Ecological and Evolutionary Synthesis (CEES), Department of Biology, University of Oslo, PO Box 1050 Blindern, 0316 Oslo, Norway
  • Institute of Marine Research, Flødevigen Marine Research Station, 4817 His, Norway
n.c.stenseth@bio.uio.no

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