Memorial University DAI: Population distribution of the copepod Calanus finmarchicus in the Labrador Sea : a modelling study

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Title	Population distribution of the copepod Calanus finmarchicus in the Labrador Sea : a modelling study
Author	Tittensor, Derek, 1976-
Description	Thesis (M.Sc.)--Memorial University of Newfoundland, 2002. Computational Science
Date	2002
Pagination	xvii, 200 leaves : ill. (some col.), maps (some col.)
Subject	Calanus finmarchicus--Labrador Sea--Mathematical models
Degree	M.Sc.
Degree Grantor	Memorial University of Newfoundland.Computational Science Programme
Discipline	Computational Science
Language	eng
Spatial Coverage	Labrador Sea
Notes	Bibliography: leaves 193-200
Abstract	Calanus finmarchicus is a zooplankter that forms a critical part of the North Atlantic ecosystem, and provides a key link in the transfer of energy between trophic levels. The Labrador Sea contains a large population of Calanus finmarchicus, but existing data for the central and northern parts of this region are sparse. There are, as yet, few wintertime observations due to the difficulties of data collection. Modelling studies provide a useful method to assess ecological and oceanographic processes and can give insight into the spatial structure of populations. This study couples a biological model of Calanus finmarchicus with a circulation model of the Labrador Sea and its environs in an attempt to understand interactions between the physical oceanographic transport processes of the region and zooplankton behaviour, life-history and distribution. The study aims to produce a large-scale, comprehensive picture of the spatial distribution of Calanus finmarchicus in the Labrador Sea, along with an exploration of the timing of diapause, and an examination of transport processes and their effect on population sustainability. The modelled population structure matches reasonably well to temporal and spatial patterns in the Labrador Sea derived from available data sets. During an annual cycle, surface currents can cause a population to be advected onto shelf and slope regions from the deeper ocean. A latitudinally-dependent diapause emergence scheme with early emergence to the south ofNewfoundland provides the best fit to data.
Type	Text
Resource Type	Electronic thesis or dissertation
Format	Image/jpeg; Application/pdf
Source	Paper copy kept in the Centre for Newfoundland Studies, Memorial University Libraries
Local Identifier	a1591293
Rights	The author retains copyright ownership and moral rights in this thesis. Neither the thesis nor substantial extracts from it may be printed or otherwise reproduced without the author's permission.
Collection	Electronic Theses and Dissertations
Scanning Status	Completed
PDF File	(18.08 MB) -- http://collections.mun.ca/PDFs/theses/Tittensor_Derek.pdf
CONTENTdm file name	196892.cpd