2001
Morhometric correlates of host specificity in Dactylogyrus species (Monogenea) parasites of European Cyprinid fish
ŠIMKOVÁ, Andrea; Yves DESDEVISES; Milan GELNAR a Serge MORANDZákladní údaje
Originální název
Morhometric correlates of host specificity in Dactylogyrus species (Monogenea) parasites of European Cyprinid fish
Autoři
ŠIMKOVÁ, Andrea; Yves DESDEVISES; Milan GELNAR a Serge MORAND
Vydání
Parasitology, United Kingdom, Cambridge University Press, 2001, 0-521-57637-7
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10600 1.6 Biological sciences
Stát vydavatele
Česká republika
Utajení
není předmětem státního či obchodního tajemství
Označené pro přenos do RIV
Ano
Kód RIV
RIV/00216224:14310/01:00004773
Organizační jednotka
Přírodovědecká fakulta
UT WoS
Klíčová slova anglicky
adaptation; host specificity; fish monogeneans; morphometric deterninamts; simulated phylogenies
Štítky
Změněno: 28. 11. 2001 17:18, prof. RNDr. Milan Gelnar, CSc.
Anotace
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.
Návaznosti
| GA524/98/0940, projekt VaV |
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| MSM 143100010, záměr |
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