2013
Morphological variability of black bullhead Ameiurus melas in four non-native European populations
NOVOMESKA, A.; Stanislav KATINA; G.H. COPP; G. PEDICILLO; M. LORENZONI et. al.Základní údaje
Originální název
Morphological variability of black bullhead Ameiurus melas in four non-native European populations
Autoři
NOVOMESKA, A. (703 Slovensko); Stanislav KATINA (703 Slovensko, garant, domácí); G.H. COPP (826 Velká Británie a Severní Irsko); G. PEDICILLO (380 Itálie); M. LORENZONI (380 Itálie); L. POMPEI (380 Itálie); J. CUCHEROUSSET (250 Francie) a V. KOVAC (703 Slovensko)
Vydání
Journal of Fish Biology, UK, The Fisheries Society of British Isles, 2013, 0022-1112
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10103 Statistics and probability
Stát vydavatele
Velká Británie a Severní Irsko
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 1.734
Kód RIV
RIV/00216224:14310/13:00067896
Organizační jednotka
Přírodovědecká fakulta
UT WoS
000317291700001
Klíčová slova anglicky
external morphology; geometric morphometrics; growth changes; invasive species; ontogeny
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 7. 4. 2014 22:36, Ing. Andrea Mikešková
Anotace
V originále
External morphology in black bullhead Ameiurus melas , a fish species considered to have high invasive potential, was studied in its four non-native European populations (British, French, Italian and Slovak). The aim of this study was to examine this species’ variability in external morphology, including ontogenetic context, and to evaluate its invasive potential. Specimens from all non-native populations reached smaller body size compared to individuals from native populations. Juvenile A. melas were found to have a relatively uniform body shape regardless of the population’s origin, whereas adults developed different phenotypes depending upon location. Specimens from the U.K., Slovak and French populations appeared to be rather similar to each other, whereas the Italian population showed the most distant phenotype. This probably results from the different thermal regime in the Italian habitat. Ameiurus melas from non-native European populations examined in this study showed some potential to alter the body shape both within and between populations. The phenotypic plasticity of A. melas , however, was not found to be as significant as in other invasive fish species. The results suggest that morphological variability itself is not necessarily essential for invasive success. The invasiveness of A. melas is therefore probably favoured by variations in its life-history traits and reproduction variables, together with some behavioural traits ( e.g . voracious feeding and parental care) rather than by phenotypic plasticity expressed in external morphology
Návaznosti
CZ.1.07/2.2.00/15.0203, interní kód MU |
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