Abstract
One of the most effective techniques for evaluating stress is the analysis of developmental stability, measured by stochastic variation based particularly on fluctuating asymmetry, i.e. a variance in random deviations from perfect bilateral symmetry. However, the application of morphological methods is only possible when an organism lives under testing conditions during a significant part of its ontogenesis. Contrary to morphological characters, behavior can change very fast. Consequently, methods based on behavioural characters may have advantages over more traditional approaches. In this study we describe the technique of assessing stochastic variation, using not morphological, but behavioural characters. To measure stochastic variation of behavioural response, we assessed the stability of the isolation reaction of blue musselMytilus edulis at regular changes of salinity. With increasing temperature from +12°C to +20°C stochastic variation of the isolation reaction increased, which is a common response to change of environmental conditions. In this way, we have developed a method of assessing stochastic variation of behavioural response in molluscs. This method may find a great range of applications, because its usage does not require keeping animals in tested conditions for a long time.
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Literature Cited
Fry, F. T. G., 1971. The effect of environmental factors on the physiology of fish. In: Fish physiology. Ed. by W. S. Hoar & D. J. Randall. Acad. Press, New York,6, 1–98.
Graham, J. H., Emlen, J. M. & Freeman C. D., 1993. Developmental stability and its applications in ecotoxicology.—Ecotoxicology2, 175–184.
Ivanchenko, O. F. & Lajus, D. L., 1985. Resistance of the White Sea herring larvae and fries to low salinity.—Trudy zool. Inst.179, 70–79 (In Russian).
Kozhara, A. V., 1989. On the ratio of components of phenotypic variances of bilateral characters in populations of some fishes.—Genetika (USSR)25, 1508–1513. (In Russian).
Kozhara A. V., 1994. Phenotypic variance of bilateral characters as an indicator of genetic and environmental conditions in breamAbramis brama (L.) (Pisces, Cyprinidae) population.—J. appl. Ichth.10, 167–181.
Leary, R. F. & Allendorf, F. M., 1989. Fluctuating asymmetry as an indicator of stress: implications for conservation biology.—Trends Ecol. Evolut.4, 214–217.
Parsons, P. A., 1990. Fluctuating asymmetry: an epigenetic measure of stress.—Biol. Rev.65, 131–145.
Zakharov, V. M., 1989. Future prospects for population phenogenetics.—Soviet scient. Rev. (sect. F),4, 1–79.
Zakharov, V. M. & Graham, J. H. (Eds.). 1992. Developmental stability in natural populations.—Acta zool. fenn.191, 1–200.
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Lajus, D.L., Sukhotin, A.A. A new approach for the assessment of stochastic variation: analysis of behavioural response in blue mussel (Mytilus edulis L.). Helgoländer Meeresunters. 52, 141–145 (1998). https://doi.org/10.1007/BF02908743
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DOI: https://doi.org/10.1007/BF02908743