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CPR: SAHFOS Continuous Plankton Recorder survey database
Citation
The Continuous Plankton Recorder dataset, Sir Alister Hardy Foundation for Ocean Science, Plymouth, UK

Availability: Restricted
The data are withheld from general circulation and disclosure but access may be obtained on a case-by-case basis through negotiation

Notes: Release with permission of the appropriate parties

Description
The SAHFOS CPR survey is the longest and most geographically extensive marine biological survey in the world. The CPR survey has been in operation in the North Sea and North Atlantic since 1931 and has systematically sampled up to 500 planktonic taxa from the major regions of the North Atlantic at a monthly resolution. more

The Continuous Plankton Recorder (CPR) survey has been operating in the North Atlantic and North Sea since 1931 and measures the abundance of approximately 450 phytoplankton and zooplankton taxa (Warner and Hays, 1994). The CPR is a high-speed plankton recorder that is towed behind ‘ships of opportunity’ through the surface layer of the ocean (~10 m depth). Water passes through the recorder, and plankton are filtered by a slow moving silk (mesh size 270 μm). A second layer of silk covers the first and both are reeled into a tank containing 4% formaldehyde. Upon returning to the laboratory, the silk on is unwound and cut into sections corresponding to 10 nautical miles and approximately 3 m3 of filtered sea water. The colour of each section of CPR silk is then evaluated and categorized according to four levels of ‘greenness’ (green, pale green, very pale green and no colour) using a standard colour chart; these numbers are given a numerical value as a measure of the ‘Phytoplankton Colour Index’. This is a semiquantitative measure of phytoplankton biomass; the silk gets its green colour from the chloroplasts of the filtered phytoplankton. Phytoplankton cells are then identified and recorded as either present or absent across 20 microscopic fields spanning each section of silk; CPR phytoplankton abundance is therefore a semiquantitative estimate (i.e. the species is recorded once per field independent of the number of cells in a field). However, the proportion of cells captured by the silk reflects the major changes in abundance, distribution, and community composition of the phytoplankton (Robinson, 1970), and is consistent and comparable over time. Zooplankton analysis then carried out in two stages with small (<2 mm) zooplankton identified and counted on-silk and larger (>2 mm) zooplankton enumerated off-silk. The collection and analysis of CPR samples have been carried out using a consistent methodological approach since 1958, making the CPR survey the longest continuous dataset of its kind in the world (Edwards and Richardson, 2004).

Scope
Themes:
Biology > Ecology - biodiversity, Biology > Phytoplankton, Biology > Zooplankton
Keywords:
Marine, Phytoplankton, Plankton, Zooplankton, A, North Atlantic, ANE, North Sea, INE, INW, Calanoida, Ceratium, Cladocera, Copepoda, Dinoflagellata, Dinophyceae

Geographical coverage
A, North Atlantic [Marine Regions]
ANE, North Sea [Marine Regions]
Indo-Pacific North East [Marine Regions]
Indo-Pacific North West [Marine Regions]

Temporal coverage
From September 1931 on [In Progress]

Taxonomic coverage
Calanoida [WoRMS]
Ceratium Schrank, 1793 [WoRMS]
Cladocera [WoRMS]
Copepoda [WoRMS]
Dinoflagellata [WoRMS]
Dinophyceae [WoRMS]

Parameters
Abundance, Count

Contributors
The Sir Alister Hardy Foundation for Ocean Science; The Laboratory, moredata creatordata ownerdata providerdata manager

Related datasets
Child datasets:
Continuous Plankton Recorder (Phytoplankton), more
Continuous Plankton Recorder (Zooplankton), more
Continuous Plankton Recorder Dataset (NOAA) - Phytoplankton, more
Continuous Plankton Recorder Dataset (NOAA) - Zooplankton, more
Continuous Plankton Recorder Dataset (SAHFOS) - Pacific Phytoplankton, more
Continuous Plankton Recorder Dataset (SAHFOS) - Pacific Zooplankton, more

Publication
Based on this dataset:
Reid, P.C.; Matthews, J.B.L.; Smith, M.A. (Ed.) (2003). Achievements of the Continuous Plankton Recorder Survey and a vision for its future. Progress in Oceanography, 58(2-4). Elsevier: Amsterdam. 115-358 pp., more
Lindley, J.A.; Williams, R.; Hunt, H.G. (1993). Anomalous seasonal cycles of decapod crustacean larvae in an exceptionally warm year. J. Exp. Mar. Biol. Ecol. 172: 47-65, more
Continuous Plankton Recorder survey team (2004). Continuous Plankton Records: Plankton Atlas of the North Atlantic Ocean 1958-1999. Mar. Ecol. Prog. Ser. (suppl.): 11-75, more
Rees, C.B. (1952). Continuous plankton records: the decapod larvae in the North Sea 1947-1949. Bull. Mar. Ecol. 3: 157-184, more
Rees, C.B. (1955). Continuous plankton records: the decapod larvae in the North Sea 1950-51. Bull. Mar. Ecol. 4: 69-80, more
Lindley, J.A. (1977). Continuous Plankton Records: the distribution of the Euphausiacea (Crustacea: Malacostraca) in the North Atlantic and the North Sea, 1966-1967. J. Biogeogr. 4: 121-133, more
Lindley, J.A. (1987). Continuous plankton records: the geographical distribution and seasonal cycles of decapod crustacean larvae and pelagic post-larvae in the North-Eastern Atlantic Ocean and the North Sea, 1981-3. J. Mar. Biol. Ass. U.K. 67: 145-167, more
Batten, S.D.; Clark, R.; Flinkman, J.; Hays, G.; John, E.; John, A.W.G.; Jonas, T.; Lindley, J.A.; Stevens, D.P.; Walne, A. (2003). CPR sampling: the technical background, materials and methods, consistency and comparability. Prog. Oceanogr. 58(2-4): 193-215. dx.doi.org/10.1016/j.pocean.2003.08.004, more
Batten, S.D.; Clark, R.; Flinkman, J.; Hays, G.; John, E.; John, A.W.G.; Jonas, T.; Lindley, J.A.; Stevens, D.P.; Walne, A. (2003). CPR sampling: the technical background, materials and methods, consistency and comparability, in: Reid, P.C. et al. (Ed.) Achievements of the Continuous Plankton Recorder Survey and a vision for its future. Progress in Oceanography, 58(2-4): pp. 193-215. dx.doi.org/10.1016/j.pocean.2003.08.004, more
Beaugrand, G.; Brander, K.M.; Lindley, J.A.; Souissi, S.; Reid, P.C. (2003). Plankton effect on cod recruitment in the North Sea. Nature (Lond.) 426(6967): 661-664, more
Beaugrand, G.; Reid, P.C.; Ibañez, F.; Lindley, J.A.; Edwards, M. (2002). Reorganization of north Atlantic marine copepod biodiversity and climate. Science (Wash.) 296(5573): 1692-1694, more
Warner, A.J.; Hays, G. (1994). Sampling by the Continuous Plankton Recorder survey. Prog. Oceanogr. 34: 237-256, more
Reid, P.C.; Colebrook, J.M.; Matthews, J.B.L.; Aiken, J.; Continuous Plankton Recorder Team (2003). The Continuous Plankton Recorder: concepts and history, from Plankton Indicator to undulating recorders. Prog. Oceanogr. 58(2-4): 117-173. dx.doi.org/10.1016/j.pocean.2003.08.002, more
Reid, P.C.; Colebrook, J.M.; Matthews, J.B.L.; Aiken, J.; Continuous Plankton Recorder Team (2003). The Continuous Plankton Recorder: concepts and history, from Plankton Indicator to undulating recorders, in: Reid, P.C. et al. (Ed.) Achievements of the Continuous Plankton Recorder Survey and a vision for its future. Progress in Oceanography, 58(2-4): pp. 117-173. dx.doi.org/10.1016/j.pocean.2003.08.002, more
Richardson, A.J. et al. (2006). Using continuous plankton recorder data. Prog. Oceanogr. 68(1): 27-74, more

Dataset status: In Progress
Data type: Data
Data origin: Monitoring: field survey
Release date: 2004-06-16
Metadatarecord created: 2004-06-28
Information last updated: 2010-12-15
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