Abstract
Univariate comparisons and several multivariate statistical analyses have been performed to study the morphometric variability of B. plicatilis. Both laboratory clones kept under constant conditions and natural populations from different Spanish lagoons and different times of the year have been compared. The results show that not only size, but also allometric coefficients are influenced by environmental factors. However, an important genetic component in the variation of shape and size has been visualized. A clear North-South ordination of the populations of the different lagoons and an important dispersion between their summer populations as well as great differences due to seasonal variation became apparent by the multivariate statistical analysis used.
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References
Blackith, R. E. & Reyment, R. A., 1971. Multivariate morphometrics. Academic Press, London. 412 pp.
Gould, S. J., 1966. Allometry and size in Ontogeny and Phylogeny. Biol. Rev. 41: 587–640.
Green, J., 1980. Asymmetry and variation in Keratell a tropica. Hydrobiologia 73: 241–248.
Guillard, R. R. L. & Ryther, J. H. 1962. Studies of marine planktonic Diatoms. I. Cyclotella nana Hustedt and Detonula confervacea (Cleve) Gran. Can. J. Microbiol. 8: 229–239.
Hirayama, K. & Kusano, T., 1972. Fundamental studies on the physiology of Rotifers for their mass culture. A influence of water temperature on population growth of Rotifer. Bull. Jap. Soc. Sci. Fish. 38: 1357–1363.
Ito, T., 1953. Studies on the morphological variation in natural populations of Calanoide Copepoda of Japanese Island waters. Fac. Fish. Univ. Mie. 1: 273–400.
Jolicoeur, P. & Mossiman, J. E., 1960. Size and shape variation in the painted turtle. A principal components analysis. Growth 24: 339–354.
Kerfoot, W. C., 1980. Perspectives on Cyclomorphosis. Separation of phenotypes and genotypes. In: Evolution and Ecology of Zooplankton Communities. W. C. Kerfoot (Ed.) Univ. Pr. New England: 470–496.
King, Ch. K. & Miracle, M. R., 1980. A perspective on aging in Rotifers. Hydrobiologia 73: 13–19.
Lindström, K. & Pejler, B., 1975. Experimental studies on the seasonal variation of the Rotifer Keratella cochlearis (Gosse). Hydrobiologia 46: 191–197.
Moulton, T. P., 1973. Principal Components Analysis of variation in form within Oncaea conifera, a species of Copepoda (Crustacea). Systematic Zoology 22: 141–156.
Nie, N., Bent, D. H. & Hull, C. H., 1970. Statistical package for the social sciences. McGraw-Hill, New York. 343 pp.
Riera, T., 1981. Variabilitat morfologica de Tropocyclops i Temora. Aproximació critica a l'ús generalitzat de la Biometria en la taxonomia de Copépodes. Ph. D. Thesis, Univ. of Barcelona.
Seal, H. L., 1964. Multivariate statistical analysis for biologists. 1964. Methuen London. 207 pp.
Yúfera, M., 1982. Morphometric characterization of a small-sized strain of Brachionus plicatilis in culture. Aquaculture 27: 55–61.
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Serra, M., Miracle, M.R. Biometric analysis of Brachionus plicatilis ecotypes from Spanish lagoons. Hydrobiologia 104, 279–291 (1983). https://doi.org/10.1007/BF00045979
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DOI: https://doi.org/10.1007/BF00045979