Результаты исследований: Научные публикации в периодических изданиях › статья
Fluctuating and directional asymmetry of the blue mussel (Mytilus edulis): improving methods of morphological analysis to explore species performance at the northern border of its range. / Lajus, D.; Katolikova, M.; Strelkov, P.; Hummel, H.
в: Symmetry, № 7, 2015, стр. 488-514.Результаты исследований: Научные публикации в периодических изданиях › статья
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TY - JOUR
T1 - Fluctuating and directional asymmetry of the blue mussel (Mytilus edulis): improving methods of morphological analysis to explore species performance at the northern border of its range
AU - Lajus, D.
AU - Katolikova, M.
AU - Strelkov, P.
AU - Hummel, H.
PY - 2015
Y1 - 2015
N2 - In this work we examined morphological variation at different levels to study performance and population structuring of the blue mussel Mytilus edulis. Our objectives were: (i) to develop an integrated technique for analyzing morphological variation in blue mussels and, based on this technique; (ii) to perform a morphometric description of mussels from the northern part of their range; and (iii) to verify the hypothesis that populations at the outer range of their distribution have reduced performance due to harsh climatic conditions. Means, directional asymmetry (i.e., systematic differences between left and right structures), fluctuating asymmetry (random deviations from perfect symmetry, a measure of developmental instability), factorial variation (difference between total variance and variance of fluctuating asymmetry, an indirect index of genotypic variation), and measurement error were examined for 14 bilateral characters of muscle scars on mussel shells. Also, we analyzed one non-bilateral character. F
AB - In this work we examined morphological variation at different levels to study performance and population structuring of the blue mussel Mytilus edulis. Our objectives were: (i) to develop an integrated technique for analyzing morphological variation in blue mussels and, based on this technique; (ii) to perform a morphometric description of mussels from the northern part of their range; and (iii) to verify the hypothesis that populations at the outer range of their distribution have reduced performance due to harsh climatic conditions. Means, directional asymmetry (i.e., systematic differences between left and right structures), fluctuating asymmetry (random deviations from perfect symmetry, a measure of developmental instability), factorial variation (difference between total variance and variance of fluctuating asymmetry, an indirect index of genotypic variation), and measurement error were examined for 14 bilateral characters of muscle scars on mussel shells. Also, we analyzed one non-bilateral character. F
KW - Barents Sea
KW - developmental instability
KW - directional asymmetry
KW - distribution range
KW - fluctuating asymmetry
KW - measurement error
KW - Mytilus edulis
KW - salinity
KW - temperature
KW - White Sea
U2 - 10.3390/sym7020488
DO - 10.3390/sym7020488
M3 - Article
SP - 488
EP - 514
JO - Symmetry
JF - Symmetry
SN - 2073-8994
IS - 7
ER -
ID: 3932589