J 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.

Basic information

Original name

Morphological variability of black bullhead Ameiurus melas in four non-native European populations

Authors

NOVOMESKA, A. (703 Slovakia), Stanislav KATINA (703 Slovakia, guarantor, belonging to the institution), G.H. COPP (826 United Kingdom of Great Britain and Northern Ireland), G. PEDICILLO (380 Italy), M. LORENZONI (380 Italy), L. POMPEI (380 Italy), J. CUCHEROUSSET (250 France) and V. KOVAC (703 Slovakia)

Edition

Journal of Fish Biology, UK, The Fisheries Society of British Isles, 2013, 0022-1112

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10103 Statistics and probability

Country of publisher

United Kingdom of Great Britain and Northern Ireland

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

Impact factor

Impact factor: 1.734

RIV identification code

RIV/00216224:14310/13:00067896

Organization unit

Faculty of Science

UT WoS

000317291700001

Keywords in English

external morphology; geometric morphometrics; growth changes; invasive species; ontogeny

Tags

Tags

International impact, Reviewed
Změněno: 7/4/2014 22:36, Ing. Andrea Mikešková

Abstract

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

Links

CZ.1.07/2.2.00/15.0203, interní kód MU
Name: Univerzitní výuka matematiky v měnícím se světě (Acronym: Univerzitní výuka matematiky)
Investor: Ministry of Education, Youth and Sports of the CR, 2.2 Higher education