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@article{487234,
author = {Kadlec, Dušan and Šimková, Andrea and Gelnar, Milan},
article_number = {77},
keywords = {Microhabitat distribution; congeneric monogeneans; niche preference; microhabitat specificity; interspecific interactions},
language = {eng},
issn = {10-1079},
journal = {Journal of Helminthology},
title = {The microhabitat distribution of two Dactylogyrus species parasitizing the gills of the barbel, Barbus barbus},
volume = {4},
year = {2003}
}
TY - JOUR
ID - 487234
AU - Kadlec, Dušan - Šimková, Andrea - Gelnar, Milan
PY - 2003
TI - The microhabitat distribution of two Dactylogyrus species parasitizing the gills of the barbel, Barbus barbus
JF - Journal of Helminthology
VL - 4
IS - 77
SP - 317-325
EP - 317-325
SN - 101079
KW - Microhabitat distribution
KW - congeneric monogeneans
KW - niche preference
KW - microhabitat specificity
KW - interspecific interactions
N2 - The microhabitat distribution of two congeneric species Dactylogyrus carpathicus and D. malleus (Monogenea) parasitizing the gills of the barbel (Barbus barbus L.) was investigated. We tested whether congeneric species exhibited microhabitat preference and whether interspecific interactions could be attributed to the microhabitat segregation of congeners. The outlying mean index method was used to evaluate species microhabitats. Gill variables (different microhabitats within gills) were used as environmental factors characterizing the gills. When abundances of both species were highest, and no significant difference was found between the abundance of the two species, the gill segments and gill areas were the most important factors segregating the Dactylogyrus species on the gills. Niche overlap was low within each of the four gill arches, and parasites were segregated in the same microhabitats within each gill arch. When abundances of both species were low, each monogenean species was segregated at the level of the gill arches. When abundances of both species increased, the niche and overlap between species increased. The distribution of both congeneric species confirmed microhabitat preference within the gills. The results suggest that microhabitat preference is dependent on species abundances, species being segregated in the case of low abundance, possibly to increasing mating opportunities. Both niche and overlap between species increased with species abundance. In the case of the high abundance of both species, microhabitat preference seems to be related to interspecific interactions between monogenean species, as previously found for endoparasitic species.
ER -
KADLEC, Dušan, Andrea ŠIMKOVÁ a Milan GELNAR. The microhabitat distribution of two Dactylogyrus species parasitizing the gills of the barbel, Barbus barbus. \textit{Journal of Helminthology}. 2003, roč.~4, č.~77, s.~317-325. ISSN~10-1079.
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