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Morphological variability of the Asiatic cyprinid, topmouth gudgeon Pseudorasbora parva, in its introduced European range

Authors

  • E. Záhorská,

    Corresponding author
    1. * Comenius University, Faculty of Natural Sciences, Department of Ecology, Mlynská dolina B2, 842 15 Bratislava, Slovakia, The Romanian Waters National Administration Mures Water Directorate, Str. Koteles Samuel nr. 33, Tigru Mures 540057, Romania, § Centre for Ecology & Hydrology, Winfrith Technology Centre, Dorchester, Dorset DT2 8ZD, U.K., Centre for Environment Fisheries and Aquaculture Science, Pakefield Road, Lowestoft, Suffolk NR33 0HT, U.K., Hull International Fisheries Institute, University of Hull, Cottingham Road, Hull HU6 7RX, U.K., # APEM (Aquatic Scientists) Ltd, Centre for Innovation & Enterprise, 13 Oxford University Begbroke Science Park, Sandy Lane, Yarnton, Oxfordshire OX5 1PF, 14 U.K., ** Comenius University, Faculty of Mathematics and Physics and Informatics, Department of Probability and Mathematical Statistics, Mlynská dolina, 842 48 Bratislava, Slovakia and Department of Anthropology, University of Vienna, Althanstrasse 14, A-1091 Vienna, Austria and †† School of Conservation Sciences, Bournemouth University, Dorset House, Talbot Campus, Fern Barrow, Poole, Dorset BH12 5BB, U.K.
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  • V. Kováč,

    1. * Comenius University, Faculty of Natural Sciences, Department of Ecology, Mlynská dolina B2, 842 15 Bratislava, Slovakia, The Romanian Waters National Administration Mures Water Directorate, Str. Koteles Samuel nr. 33, Tigru Mures 540057, Romania, § Centre for Ecology & Hydrology, Winfrith Technology Centre, Dorchester, Dorset DT2 8ZD, U.K., Centre for Environment Fisheries and Aquaculture Science, Pakefield Road, Lowestoft, Suffolk NR33 0HT, U.K., Hull International Fisheries Institute, University of Hull, Cottingham Road, Hull HU6 7RX, U.K., # APEM (Aquatic Scientists) Ltd, Centre for Innovation & Enterprise, 13 Oxford University Begbroke Science Park, Sandy Lane, Yarnton, Oxfordshire OX5 1PF, 14 U.K., ** Comenius University, Faculty of Mathematics and Physics and Informatics, Department of Probability and Mathematical Statistics, Mlynská dolina, 842 48 Bratislava, Slovakia and Department of Anthropology, University of Vienna, Althanstrasse 14, A-1091 Vienna, Austria and †† School of Conservation Sciences, Bournemouth University, Dorset House, Talbot Campus, Fern Barrow, Poole, Dorset BH12 5BB, U.K.
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  • I. Falka,

    1. * Comenius University, Faculty of Natural Sciences, Department of Ecology, Mlynská dolina B2, 842 15 Bratislava, Slovakia, The Romanian Waters National Administration Mures Water Directorate, Str. Koteles Samuel nr. 33, Tigru Mures 540057, Romania, § Centre for Ecology & Hydrology, Winfrith Technology Centre, Dorchester, Dorset DT2 8ZD, U.K., Centre for Environment Fisheries and Aquaculture Science, Pakefield Road, Lowestoft, Suffolk NR33 0HT, U.K., Hull International Fisheries Institute, University of Hull, Cottingham Road, Hull HU6 7RX, U.K., # APEM (Aquatic Scientists) Ltd, Centre for Innovation & Enterprise, 13 Oxford University Begbroke Science Park, Sandy Lane, Yarnton, Oxfordshire OX5 1PF, 14 U.K., ** Comenius University, Faculty of Mathematics and Physics and Informatics, Department of Probability and Mathematical Statistics, Mlynská dolina, 842 48 Bratislava, Slovakia and Department of Anthropology, University of Vienna, Althanstrasse 14, A-1091 Vienna, Austria and †† School of Conservation Sciences, Bournemouth University, Dorset House, Talbot Campus, Fern Barrow, Poole, Dorset BH12 5BB, U.K.
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  • K. Beyer,

    1. * Comenius University, Faculty of Natural Sciences, Department of Ecology, Mlynská dolina B2, 842 15 Bratislava, Slovakia, The Romanian Waters National Administration Mures Water Directorate, Str. Koteles Samuel nr. 33, Tigru Mures 540057, Romania, § Centre for Ecology & Hydrology, Winfrith Technology Centre, Dorchester, Dorset DT2 8ZD, U.K., Centre for Environment Fisheries and Aquaculture Science, Pakefield Road, Lowestoft, Suffolk NR33 0HT, U.K., Hull International Fisheries Institute, University of Hull, Cottingham Road, Hull HU6 7RX, U.K., # APEM (Aquatic Scientists) Ltd, Centre for Innovation & Enterprise, 13 Oxford University Begbroke Science Park, Sandy Lane, Yarnton, Oxfordshire OX5 1PF, 14 U.K., ** Comenius University, Faculty of Mathematics and Physics and Informatics, Department of Probability and Mathematical Statistics, Mlynská dolina, 842 48 Bratislava, Slovakia and Department of Anthropology, University of Vienna, Althanstrasse 14, A-1091 Vienna, Austria and †† School of Conservation Sciences, Bournemouth University, Dorset House, Talbot Campus, Fern Barrow, Poole, Dorset BH12 5BB, U.K.
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  • S. Katina,

    1. * Comenius University, Faculty of Natural Sciences, Department of Ecology, Mlynská dolina B2, 842 15 Bratislava, Slovakia, The Romanian Waters National Administration Mures Water Directorate, Str. Koteles Samuel nr. 33, Tigru Mures 540057, Romania, § Centre for Ecology & Hydrology, Winfrith Technology Centre, Dorchester, Dorset DT2 8ZD, U.K., Centre for Environment Fisheries and Aquaculture Science, Pakefield Road, Lowestoft, Suffolk NR33 0HT, U.K., Hull International Fisheries Institute, University of Hull, Cottingham Road, Hull HU6 7RX, U.K., # APEM (Aquatic Scientists) Ltd, Centre for Innovation & Enterprise, 13 Oxford University Begbroke Science Park, Sandy Lane, Yarnton, Oxfordshire OX5 1PF, 14 U.K., ** Comenius University, Faculty of Mathematics and Physics and Informatics, Department of Probability and Mathematical Statistics, Mlynská dolina, 842 48 Bratislava, Slovakia and Department of Anthropology, University of Vienna, Althanstrasse 14, A-1091 Vienna, Austria and †† School of Conservation Sciences, Bournemouth University, Dorset House, Talbot Campus, Fern Barrow, Poole, Dorset BH12 5BB, U.K.
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  • G. H. Copp,

    1. * Comenius University, Faculty of Natural Sciences, Department of Ecology, Mlynská dolina B2, 842 15 Bratislava, Slovakia, The Romanian Waters National Administration Mures Water Directorate, Str. Koteles Samuel nr. 33, Tigru Mures 540057, Romania, § Centre for Ecology & Hydrology, Winfrith Technology Centre, Dorchester, Dorset DT2 8ZD, U.K., Centre for Environment Fisheries and Aquaculture Science, Pakefield Road, Lowestoft, Suffolk NR33 0HT, U.K., Hull International Fisheries Institute, University of Hull, Cottingham Road, Hull HU6 7RX, U.K., # APEM (Aquatic Scientists) Ltd, Centre for Innovation & Enterprise, 13 Oxford University Begbroke Science Park, Sandy Lane, Yarnton, Oxfordshire OX5 1PF, 14 U.K., ** Comenius University, Faculty of Mathematics and Physics and Informatics, Department of Probability and Mathematical Statistics, Mlynská dolina, 842 48 Bratislava, Slovakia and Department of Anthropology, University of Vienna, Althanstrasse 14, A-1091 Vienna, Austria and †† School of Conservation Sciences, Bournemouth University, Dorset House, Talbot Campus, Fern Barrow, Poole, Dorset BH12 5BB, U.K.
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  • R. E. Gozlan

    1. * Comenius University, Faculty of Natural Sciences, Department of Ecology, Mlynská dolina B2, 842 15 Bratislava, Slovakia, The Romanian Waters National Administration Mures Water Directorate, Str. Koteles Samuel nr. 33, Tigru Mures 540057, Romania, § Centre for Ecology & Hydrology, Winfrith Technology Centre, Dorchester, Dorset DT2 8ZD, U.K., Centre for Environment Fisheries and Aquaculture Science, Pakefield Road, Lowestoft, Suffolk NR33 0HT, U.K., Hull International Fisheries Institute, University of Hull, Cottingham Road, Hull HU6 7RX, U.K., # APEM (Aquatic Scientists) Ltd, Centre for Innovation & Enterprise, 13 Oxford University Begbroke Science Park, Sandy Lane, Yarnton, Oxfordshire OX5 1PF, 14 U.K., ** Comenius University, Faculty of Mathematics and Physics and Informatics, Department of Probability and Mathematical Statistics, Mlynská dolina, 842 48 Bratislava, Slovakia and Department of Anthropology, University of Vienna, Althanstrasse 14, A-1091 Vienna, Austria and †† School of Conservation Sciences, Bournemouth University, Dorset House, Talbot Campus, Fern Barrow, Poole, Dorset BH12 5BB, U.K.
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†Tel.: +421 260 29 6324; fax: +421 260 29 6324; email: zahorskae@fns.uniba.sk

Abstract

To assess the spatial variability in external morphology of non-native populations of topmouth gudgeon Pseudorasbora parva within an ontogenetic context, triple regression analysis (distance-based measurements) was applied to data from eight European populations (two Slovak, four Romanian, one English and one French). The data from Slovakia were also subjected to geometrical analysis (co-ordinates-based measurements) to obtain a more complex picture of the species’ overall morphology. Great phenotypic variability was observed, being expressed not only in the formation of different definite phenotypes but also in the manner by which the phenotypes are achieved. Thus, both the definite phenotype and the patterns of development in invasive P. parva may be highly influenced by environmental conditions. Such great morphological (phenotypic) variability is likely to be one of the attributes that make this species such a successful invader.

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