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Sond cruise 1965: Factor and cluster analyses of the plankton results, a general summary

Published online by Cambridge University Press:  11 May 2009

M. V Angel
Affiliation:
National Institute of Oceanography, Wormley, Godalming, Surrey

Extract

1. The data for five planktonic taxa sampled during the SOND cruise (autumn 1965) by R.R.S. ‘Discovery’ in a day and a night series of horizontally towed nets have been analysed by factor and cluster analyses.

2. The factor analyses of hauls showed that there were five biologically distinct zones in the water column between the surface and 1000 m. The zones were more distinct in the day series than in the night.

3. Factor analyses of the individual taxa gave sensible groupings of species and the factor score plots gave ‘averaged’ depth distributions for each group.

4. Cluster analyses of the individual taxa gave results consistent with the factor analyses. Both methods gave groupings which fitted the zonation patterns of the hauls, except for the two zones between 100 and 460 m at night.

5. Only cluster analyses could be carried out on the total data matrices. Although satisfactory interpretation was only possible with the aid of the analyses of the individual taxa, the zonation and species groupings were again largely retained.

6. The zonation of the planktonic taxa is shown to be very similar to that described for nektonic species sampled on the same cruise.

7. The usefulness of these analytical methods is compared with the conclusions of other investigators. It is concluded that the rotation of the matrices to simple structure in the factor analysis gave a marked improvement in the ease of interpretation.

8. For this data, principal component analyses gave very similar results to the full factor analyses.

Type
Research Article
Copyright
Copyright © Marine Biological Association of the United Kingdom 1973

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References

REFERENCES

Angel, M. V., 1969. Planktonic ostracods from the Canary Islands region; their depth distributions, diurnal migrations and community organization. Journal of the Marine Biological Association of the United Kingdom, 49, 515–53.CrossRefGoogle Scholar
Badcock, J., 1970. The vertical distribution of mesopelagic fishes collected on the SOND Cruise. Journal of the Marine Biological Association of the United Kingdom, 50, 1001–44.CrossRefGoogle Scholar
Baker, A.C, De, 1970. The vertical distribution of euphausiids near Fuerteventura, Canary Islands (‘Discovery’ SOND Cruise, 1965). Journal ofthe Marine Biological Association of United Kingdom, 50, 301–42.CrossRefGoogle Scholar
Baker, A. De, C, Clarke, M. R. & HARRIS, M. (1973). The NIO combination net (RMT 1 + 8) and further developments of rectangular midwater trawls. Journal of the Marine Biological Association of the United Kingdom, 53, 167–84.CrossRefGoogle Scholar
Barkham, J. P. & Norris, J. M., 1970. Multivariate procedures in an investigation of vegetation and soil relations of two beechwoods, Cotswold Hills. Ecology, 51, 630–9.CrossRefGoogle Scholar
Blaxter, J. H. S. & Currie, R. I., 1967. The effect of artificial lights on acoustic scattering layers in the ocean. In Aspects of Marine Zoology (ed. Marshall, N. B.), pp. 114. London: Academic Press.Google Scholar
Boden, B. P. & KAMPA, E. M., 1967. The influence of natural light on the vertical migration of an animal community in the sea. In Aspects of Marine Zoology (ed. Marshall, N. B.), pp. 1526. London: Academic Press.Google Scholar
Carrol, J. B., 1953. An analytical solution for approximating simple structure in factor analysis. Psychometrika, 18, 2338.CrossRefGoogle Scholar
Cassie, R. M., 1959. An experimental study of factors inducing aggregation in marine plankton. New Zealand Journal of Science, 2, 339365.Google Scholar
Cassie, R. M., 1962. Frequency distribution in the ecology of plankton and other organisms. Journal of Animal Ecology, 31, 6582.CrossRefGoogle Scholar
Cassie, R. M., 1963. Multivariate analysis in the interpretation of numerical plankton data. New Zealand Journal of Science, 6, 3659.Google Scholar
Clarke, M. R., 1969 a. Cephalopoda collected on the SOND Cruise. Journal of the Marine Biological Association of the United Kingdom, 49, 961–76.CrossRefGoogle Scholar
Clarke, M. R., 1969 b. A new midwater trawl for sampling discrete depth horizons. Journal of the Marine Biological Association of the United Kingdom, 49, 945–60.CrossRefGoogle Scholar
Colebrook, J. M., 1964. Continuous plankton recorders: a principal component analysis of the geographical distribution of zooplankton. Bulletin of Marine Ecology, 6, 78100.Google Scholar
Colebrook, J. M., 1969. Variability in the plankton. In Progress in Oceanography (ed. Sears, M.), vol. 5, pp. 115–25. Oxford: Pergamon Press.Google Scholar
Currie, R. I., Boden, B. P. & Kampa, E. M., 1969. An investigation on sonic-scattering layers: the R.R.S. ‘Discovery’ SOND Cruise 1965. Journal of the Marine Biological Association of the United Kingdom, 49, 489514.CrossRefGoogle Scholar
David, P. M., 1973. In preparation.Google Scholar
Ebeling, A. W., Ibara, R. M., Lavenberg, R. J. & Rohlf, F. J., 1970 a. Ecological groups of deep-sea animals of Southern California. Bulletin of the Los Angeles County Museum of Natural History Science, no. 6, 43 pp.Google Scholar
Ebeling, A. W., Calliet, G. M., Ibara, R. M., Dewitt, F. A. & Brown, D. W., 1970 b. Pelagic communities and sound scattering off Santa Barbara California. In Proceedings of an International Symposium on Biological Sound Scattering in the ocean (ed. Broake Farquahar, E. J. G), pp. 118. Washington, D.C.: Maury Center for Ocean Research.Google Scholar
Fager, E. W. & Mcgowan, I. A., 1963. Zooplankton species groups in the North Pacific. Science, 140, 453–60.CrossRefGoogle ScholarPubMed
Foxton, P., 1969. SOND cruise 1965. Biological sampling methods and procedures. Journal of the Marine Biological Association of the United Kingdom, 49, 603–20.CrossRefGoogle Scholar
Foxton, P., 1970 a. The vertical distribution of pelagic decapods (Crustacea: Natantia) collected on the SOND cruise 1965. 1. The Caridea. Journal of the Marine Biological Association of the United Kingdom, 50, 939–60.CrossRefGoogle Scholar
Foxton, P., 1970 b. The vertical distribution of pelagic decapods (Crustacea: Natantia) collected on the SOND cruise 1965. II. The Peneidea and general discussion. Journal of the Marine Biological Association of the United Kingdom, 50, 9611000.CrossRefGoogle Scholar
Goodall, D. W., 1954. Objective methods for the classification of vegetation. III. An essay in the use of factor analysis. Australian Journal of Botany, 2, 304–24.CrossRefGoogle Scholar
Guttman, L., 1954. Some necessary conditions for common factor analysis. Psychometrika, 19, 149–61.CrossRefGoogle Scholar
Harman, H. H., 1967. Modern Factor Analysis. 474 pp. Chicago: University of Chicago Press.Google Scholar
Horst, P., 1965. Factor Analysis of Data Matrices. 730 pp New York: Holt, Rinehart and Winston Inc.Google Scholar
Hughes, R. N. & Thomas, M. L. H., 1971 a. The classification and ordination of shallow-water benthic samples from Prince Edward Island, Canada. Journal of Experimental Marine Biology and Ecology, 7, 139.CrossRefGoogle Scholar
Hughes, R. N. & Thomas, M. L. H., 1971 b. Classification and ordination of benthic samples from Bedeque Bay and estuary Prince Edward Island, Canada. Marine Biology, 10, 227–35.CrossRefGoogle Scholar
Jardine, C. J., Jardine, N. & Sibson, R., 1967. The structure and construction of taxonomic hierarchies. Mathematical Biosciences, 1, 173–9.CrossRefGoogle Scholar
Jardine, N. & Sibson, R., 1968. The construction of hierarchic and non-hierarchic classifications. Computer Journal, 11, 177–84.CrossRefGoogle Scholar
Kaiser, H. F., 1958. The varimax criterion for analytic rotation in factor analysis. Psychometrika, 23, 187200.CrossRefGoogle Scholar
Lance, G. N. & Williams, W. J., 1967. A general theory of classificatory sorting systems. 1. Hierarchical systems. Computer Journal, 9, 373–80.CrossRefGoogle Scholar
Orloci, L., 1967. An agglomerative method for classification of plant communities. Journal of Ecology, 55, 193205.CrossRefGoogle Scholar
Roe, H. S. J., 1972 a. The vertical distribution and diurnal migrations of calanoid copepods collected on the SOND cruise 1965. I. The total population and general discussion. Journal of the Marine Biological Association of the United Kingdom, 52, 277314.CrossRefGoogle Scholar
Roe, H. S. J., 1972 b. The vertical distributions and diurnal migrations of Calanoid copepods collected on the SOND cruise, 1965. III. Journal of the Marine Biological Association of the United Kingdom, 52, 525–52.CrossRefGoogle Scholar
Roe, H. S. J., 1972 c. The vertical distributions and diurnal migrations of Calanoid copepods collected on the SOND cruise, 1965. IV. Journal of the Marine Biological Association of the United Kingdom, 52, 1021–44.CrossRefGoogle Scholar
Sneath, P. H. A., 1957. The application of a computer for taxonomy. Journal of General Microbiology, 17, 201–26.Google ScholarPubMed
Sokal, R. R. & Michener, C. D., 1958. A statistical method for evaluating systematic relationships. Kansas University Science Bulletin, 38, 1409–8.Google Scholar
Sokal, R. R. & Sneath, P. H. A., 1963. Principals of Numerical Taxonomy. 359 pp. San Francisco: W. H. Freeman & Co.Google Scholar
Thurston, M. (1973). In preparation.Google Scholar
Thurstone, L. L., 1947. Multiple Factor Analysis. 535pp. Chicago: University of Chicago Press.Google Scholar
Vinogradov, M. E., 1968. Vertical Distribution of the Oceanic Zooplankton. 339 pp. Moscow: Nauka. (Translation from the Russian, Jerusalem: Israel Program for Scientific Translations. 1970.)Google Scholar
Williamson, M. H., 1961. A method for studying the relation of plankton variations to hydrography. Bulletin of Marine Ecology, 5, 224–9.Google Scholar
Williamson, M. H., 1963. The relation of plankton to some parameters of the herring population of the North-western North Sea. Rapports et Procès-Verbaux des Réunions du Conseil Permanent International pour L'Exploration de la Mer, 154, 179185.Google Scholar
Wrigley, C, 1956. An empirical comparison of various methods for the estimationof communalities, 27 pp. Contract Report (1). Berkley, California; University of California.Google Scholar