Detailed Information on Publication Record
2001
Morhometric correlates of host specificity in Dactylogyrus species (Monogenea) parasites of European Cyprinid fish
ŠIMKOVÁ, Andrea, Yves DESDEVISES, Milan GELNAR and Serge MORANDBasic information
Original name
Morhometric correlates of host specificity in Dactylogyrus species (Monogenea) parasites of European Cyprinid fish
Authors
ŠIMKOVÁ, Andrea, Yves DESDEVISES, Milan GELNAR and Serge MORAND
Edition
Parasitology, United Kingdom, Cambridge University Press, 2001, 0-521-57637-7
Other information
Language
English
Type of outcome
Článek v odborném periodiku
Field of Study
10600 1.6 Biological sciences
Country of publisher
Czech Republic
Confidentiality degree
není předmětem státního či obchodního tajemství
RIV identification code
RIV/00216224:14310/01:00004773
Organization unit
Faculty of Science
UT WoS
000170390500007
Keywords in English
adaptation; host specificity; fish monogeneans; morphometric deterninamts; simulated phylogenies
Tags
Změněno: 28/11/2001 17:18, prof. RNDr. Milan Gelnar, CSc.
Abstract
V originále
We test the hypothesis that living on larger fish may impose constrains, i.e. the need to develop large attachment organs, related to the necessity to remain attached on large gills. For this, we compiled data on body size and morphometric maesurements of attachment organs of 44 Dactylogyrus species from 19 cyprinid fishes. Nineteen dactylogyrid species were considered as specialists and 25 as generalists. The lack of phylogenetic information lead us to perform comparative analyses using raw values and independant contrast obtained by random phylogenies. Our results show that rich parasite communities are formed by specialists and generalists, whereas poor communities are composed mainly of generalit parasites. Moreover, specialists are found on larger hosts, which may reflect a specialization on a predictable resource, as larger fish love longer and offer large gills for parasite colonization. Parasite specialization is shown to be linked with adaptation of attachment organs to their fish hosts. Two morphometric variables of the attachment organ, the total lenght of anchor and length of base of anchor, were positively correlated with host length for specialists.
Links
GA524/98/0940, research and development project |
| ||
MSM 143100010, plan (intention) |
|