Winter distribution of Calanus finmarchicus in the Northeast Atlantic

M.R. Heath, J.G. Fraser, A. Gislason, S. Hay, S. Jonasdottir, K. Richardson, EU TASC (Funder), EU ICOS (Funder), Scottish Office (Funder)

Research output: Contribution to journalArticle

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Abstract

Data from plankton sampling and Optical Plankton Counter deployments during six cruises between December of 1994 and 1999 have been used to derive a composite three-dimensional distribution of the abundance of Calanus finmarchicus during winter (December-January) in the Norwegian Sea and Northeast Atlantic. There are two centres of abundance, one in the eastern Norwegian Sea and Faroe-Shetland Channel, associated with the interface between Norwegian Sea Deep Water and Intermediate Water layers, and another in the Irminger Sea southwest of Iceland in association with Labrador Sea Water. In the open Northeast Atlantic, the concentration of wintering animals is around 30% of that in the Norwegian Sea and the vertical distribution ismore diffuse and on average deeper. Modelling studies have shown that the overwinter distribution and transport are key factors determining the spatial persistence of C. finmarchicus but, apart from the data presented here, there is little knowledge of these large-scale properties.
LanguageEnglish
Pages1628-1635
Number of pages7
JournalICES Journal of Marine Science
Volume57
DOIs
Publication statusPublished - 2000

Fingerprint

Calanus finmarchicus
winter
plankton
seawater
intermediate water
Iceland
vertical distribution
persistence
deep water
water
Norwegian Sea
distribution
sea
animal
sampling
modeling
animals

Keywords

  • net sampling
  • norwegian sea
  • pptical plankton counter
  • vertical distribution
  • zooplankton
  • marine science

Cite this

Heath, M. R., Fraser, J. G., Gislason, A., Hay, S., Jonasdottir, S., Richardson, K., ... Scottish Office (Funder) (2000). Winter distribution of Calanus finmarchicus in the Northeast Atlantic. ICES Journal of Marine Science, 57, 1628-1635. https://doi.org/10.1006/jmsc.2000.0978
Heath, M.R. ; Fraser, J.G. ; Gislason, A. ; Hay, S. ; Jonasdottir, S. ; Richardson, K. ; EU TASC (Funder) ; EU ICOS (Funder) ; Scottish Office (Funder). / Winter distribution of Calanus finmarchicus in the Northeast Atlantic. In: ICES Journal of Marine Science. 2000 ; Vol. 57. pp. 1628-1635.
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Heath, MR, Fraser, JG, Gislason, A, Hay, S, Jonasdottir, S, Richardson, K, EU TASC (Funder), EU ICOS (Funder) & Scottish Office (Funder) 2000, 'Winter distribution of Calanus finmarchicus in the Northeast Atlantic' ICES Journal of Marine Science, vol. 57, pp. 1628-1635. https://doi.org/10.1006/jmsc.2000.0978

Winter distribution of Calanus finmarchicus in the Northeast Atlantic. / Heath, M.R.; Fraser, J.G.; Gislason, A.; Hay, S.; Jonasdottir, S.; Richardson, K.; EU TASC (Funder); EU ICOS (Funder); Scottish Office (Funder).

In: ICES Journal of Marine Science, Vol. 57, 2000, p. 1628-1635.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Winter distribution of Calanus finmarchicus in the Northeast Atlantic

AU - Heath, M.R.

AU - Fraser, J.G.

AU - Gislason, A.

AU - Hay, S.

AU - Jonasdottir, S.

AU - Richardson, K.

AU - EU TASC (Funder)

AU - EU ICOS (Funder)

AU - Scottish Office (Funder)

PY - 2000

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AB - Data from plankton sampling and Optical Plankton Counter deployments during six cruises between December of 1994 and 1999 have been used to derive a composite three-dimensional distribution of the abundance of Calanus finmarchicus during winter (December-January) in the Norwegian Sea and Northeast Atlantic. There are two centres of abundance, one in the eastern Norwegian Sea and Faroe-Shetland Channel, associated with the interface between Norwegian Sea Deep Water and Intermediate Water layers, and another in the Irminger Sea southwest of Iceland in association with Labrador Sea Water. In the open Northeast Atlantic, the concentration of wintering animals is around 30% of that in the Norwegian Sea and the vertical distribution ismore diffuse and on average deeper. Modelling studies have shown that the overwinter distribution and transport are key factors determining the spatial persistence of C. finmarchicus but, apart from the data presented here, there is little knowledge of these large-scale properties.

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