Comparative ecology of over-wintering Calanus finmarchicus in the northern North Atlantic, and implications for life-cycle patterns

Heath, Michael R. and Boyle, Peter R. and Gislason, Astthor and Gurney, William S.C. and Hay, Stephen J and Head, Erica J.H and Holmes, Steven and Ingvarsdóttir, Anna and Jónasdóttir, Sigrun H and Lindeque, Pennie and Pollard, Raymond T and Rasmussen, Jens and Richards, Kelvin and Richardson, Katherine and Smerdon, Gary and Speirs, Douglas C, European Union (Funder) (2004) Comparative ecology of over-wintering Calanus finmarchicus in the northern North Atlantic, and implications for life-cycle patterns. ICES Journal of Marine Science, 61 (4). pp. 698-708. ISSN 1054-3139

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    Abstract

    Data from plankton net and Optical Plankton Counter sampling during 12 winter cruises between 1994 and 2002 have been used to derive a multi-annual composite 3-D distribution of the abundance of over-wintering Calanus finmarchicus in a swath across the North Atlantic from Labrador to Norway. Dense concentrations occurred in the Labrador Sea, northern Irminger Basin, northern Iceland Basin, eastern Norwegian Sea, Faroe-Shetland Channel, and in the Norwegian Trench of the North Sea. A model of buoyancy regulation in C. finmarchicus was used to derive the lipid content implied by the in situ temperature and salinity at over-wintering depths, assuming neutral buoyancy. The Faroe-Shetland Channel and eastern Norwegian Sea emerged as having the highest water column-integrated abundances of copepodites, the lowest over-wintering temperature, and the highest implied lipid content. The results are discussed in the context of spatial persistence of populations, seasonal patterns of abundance, and relationships between over-wintering and lipid accumulation in the surface waters.

    Author(s):Heath, Michael R. ORCID: https://orcid.org/0000-0001-6602-3107, Boyle, Peter R., Gislason, Astthor, Gurney, William S.C., Hay, Stephen J, Head, Erica J.H, Holmes, Steven, Ingvarsdóttir, Anna, Jónasdóttir, Sigrun H, Lindeque, Pennie, Pollard, Raymond T, Rasmussen, Jens, Richards, Kelvin, Richardson, Katherine, Smerdon, Gary and Speirs, Douglas C ORCID: https://orcid.org/0000-0002-4367-1459
    Item type:Article
    ID code:18579
    Keywords:Iceland Basin, Irminger Sea, Labrador Sea, lipid, net sampling, Norwegian Sea, optical plankton counter, vertical distribution, zooplankton, Mathematics, Ecology, Ecology, Evolution, Behavior and Systematics, Oceanography, Aquatic Science
    Subjects:Science > Mathematics
    Department:Faculty of Science > Mathematics and Statistics
    Faculty of Science > Mathematics and Statistics > Statistics and Modelling Science
    Depositing user: Mrs Ann Lynch
    Date deposited:06 Apr 2010 14:20
    Last modified:13 Jul 2019 00:42
    URI:https://strathprints.strath.ac.uk/id/eprint/18579
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