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Distribution of plankton and hydrography in relation to Great Sole, Cockburn and Little Sole Banks

Published online by Cambridge University Press:  17 November 2008

M.K. Barnes ,
S.H. Coombs ,
N.C. Halliday  and
R.D. Pingree
M.K. Barnes
Affiliation:
University of Plymouth, Faculty of Science, Drake Circus, Plymouth PL4 8AA
S.H. Coombs*
Affiliation:
Marine Biological Association of the United Kingdom, The Laboratory, Citadel Hill, Plymouth PL1 2PB
N.C. Halliday
Affiliation:
Marine Biological Association of the United Kingdom, The Laboratory, Citadel Hill, Plymouth PL1 2PB
R.D. Pingree
Affiliation:
Marine Biological Association of the United Kingdom, The Laboratory, Citadel Hill, Plymouth PL1 2PB
*
Correspondence should be addressed to: S.H. Coombs, Marine Biological Association of the United Kingdom, The Laboratory, Citadel Hill, Plymouth PL1 2PB email: shc@mba.ac.uk
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Abstract

Sampling was carried out in the Celtic Sea in May 1987 over Great Sole and Cockburn Banks, and in June 1991 over Little Sole Bank, to study relationships between bank topography, hydrography and plankton distribution.

Over Great Sole and Cockburn Banks, there were various patterns in the hydrography and plankton which could be related to the banks, although there were no significant correlations with water depth. Away from the shelf-edge, stratification was lower over the banks. Higher water temperatures (at 5 m and 100 m depth) and increased concentrations of copepod nauplii and adults occurred on either side of Cockburn Bank. Abundance of mackerel (Scomber scombrus) eggs and larvae increased towards the shelf-edge, with lower numbers over Cockburn Bank.

Over Little Sole Bank, water column stratification was negatively correlated with water depth. However, this was strongly influenced by shelf-edge mixing, which was reflected in reduced stratification towards the shelf-edge. Background levels of chlorophyll-a also increased from on-shelf towards the shelf-edge. Copepod adults and nauplii, as well as mackerel eggs and larvae were more abundant with distance onto the shelf.

There was partial retention of four Argos tracked drift buoys on the south-east flank of Little Sole Bank. The mean displacement rate of the buoys was 1.35 km day−1 over 10 days, with a mean dispersion of 1.2 km day−1. A simple one-dimensional coupled physical–biological model showed the potential influence of banks resulting in earlier stratification and resultant spring bloom. Considerations of the delay in transfer of production from primary to secondary production and the effects of drift and diffusion, suggested it was unlikely that any influence of the banks on production would be directly related to bank topography, but there might be some regional enhancement of production.

Keywords

Celtic SeaGreat Sole BankCockburn BankLittle Sole Bankshelf-edgetidal currentsstratificationproductivityplanktonmackerel
Type
Research Article
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 89 , Issue 1 , February 2009 , pp. 11 - 18
Copyright
Copyright © Marine Biological Association of the United Kingdom 2008

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References

REFERENCES

Aiken, J. (1972) The Undulating Oceanographic Recorder Mark 2. Journal of Plankton Research 3, 551–560.CrossRefGoogle Scholar
Ashjian, C.J., Davis, C.S., Gallagher, S.M. and Alatalo, P. (2001) Distribution of plankton, particles, and hydrographic features across Georges Bank described using a Video Plankton Recorder. Deep-Sea Research II 48, 245–282.CrossRefGoogle Scholar
Barth, J.A., Pierce, S.D. and Castelao, R.M. (2005) Time-dependent, wind-driven flow over a shallow midshelf submarine bank. Journal of Geophysical Research 110, C10S05, pp. 20.CrossRefGoogle Scholar
Belderson, R.H., Pingree, R.D. and Griffiths, D.K. (1986) Low sea-level tidal origin of Celtic Sea sandbanks—evidence from numerical modelling of M2 tidal streams. Marine Geology 73, 99–108.CrossRefGoogle Scholar
Bouysse, P., Horn, R., Lapierre, F. and Le Lann, F. (1976) Etude des grands bancs de sable du sud-est de la mer Celtique. Marine Geology 20, 251–275.CrossRefGoogle Scholar
Coombs, S.H., Aiken, J.A. and Griffin, T.D. (1990) The aetiology of mackerel spawning to the west of the British Isles. Meeresforschung 3, 52–75.Google Scholar
Henderson, E.W. and Steele, J.H. (1995) Comparing models and observations of shelf plankton. Journal of Plankton Research 17, 1679–1692.CrossRefGoogle Scholar
Holligan, P.M. (1981) Biological implications of fronts on the northwest European Continental shelf. Philosophical Transactions of the Royal Society of London A 302, 547–562.Google Scholar
Holligan, P.M. and Harbour, D.S. (1977) The vertical distribution and succession of phytoplankton in the western English Channel in 1975 and 1976. Journal of the Marine Biological Association of the United Kingdom 57, 1075–1093.CrossRefGoogle Scholar
Hortsman, K.R. and Fives, J.M. (1994) Ichthyoplankton distribution and abundance in the Celtic Sea. ICES Journal of Marine Science 51, 447–460.Google Scholar
Loder, J.W., Shen, Y. and Ridderinkof, H. (1997) Characterization of three-dimensional Lagrangian circulation associated with tidal rectification over a submarine bank. Journal of Physical Oceanography 27, 1729–1742.2.0.CO;2>CrossRefGoogle Scholar
Nash, R.D.M., Dickey-Collas, M. and Milligan, S.P. (1998) Descriptions of the Gulf VII/PRO-NET and MAFF/Guildline unencased high-speed plankton samplers. Journal of Plankton Research 20, 1915–1926.CrossRefGoogle Scholar
Peterson, W.T. (1986) Development, growth and survivorship of the copepod Calanus marshallae in the laboratory. Marine Ecology Progress Series 29, 61–72.CrossRefGoogle Scholar
Pingree, R.D. and Mardell, G.T. (1981) Slope turbulence, internal waves and phytoplankton growth at the Celtic Sea shelf-break. Philosophical Transactions of the Royal Society of London A 302, 663–682.Google Scholar
Pingree, R.D., Holligan, P.M., Mardell, G.T. and Head, R.D. (1976) The influence of physical stability on spring, summer and autumn phytoplankton blooms in the Celtic Sea. Journal of the Marine Biological Association of the United Kingdom 56, 845–873.CrossRefGoogle Scholar
Pingree, R.D., Mardell, G.T., Holligan, P.M., Griffiths, D.K. and Smithers, J. (1982) Celtic Sea and Armorican current structure and the vertical distributions of temperature and chlorophyll. Continental Shelf Research 1, 99–116.CrossRefGoogle Scholar
Pingree, R.D., Sinha, B. and Griffiths, C.R. (1999) Seasonality of the European slope current (Goban Spur) and ocean margin exchange. Continental Shelf Research 19, 929–975.CrossRefGoogle Scholar
Radach, G., Carlotti, F. and Spangenberg, A. (1998) Annual weather variability and its influence on the population dynamics of Calanus finmarchicus. Fisheries Oceanography 7, 272–281.CrossRefGoogle Scholar
Sharples, J. (2000) Investigating the seasonal vertical structure of phytoplankton in shelf seas. Marine Models Online 1, 338.Google Scholar