2008
Parasitism, life history traits and immune defence in cyprinid fish from Central Europe
ŠIMKOVÁ, Andrea, Thomas LAFOND, Markéta ONDRAČKOVÁ, Pavel JURAJDA, Eva OTTOVÁ et. al.Základní údaje
Originální název
Parasitism, life history traits and immune defence in cyprinid fish from Central Europe
Název česky
Parazitizmus, složky životních historíí a imunitní odpověď u kaprovitých ryb Střední Evropy
Autoři
ŠIMKOVÁ, Andrea (203 Česká republika, garant, domácí), Thomas LAFOND (250 Francie), Markéta ONDRAČKOVÁ (203 Česká republika, domácí), Pavel JURAJDA (203 Česká republika), Eva OTTOVÁ (203 Česká republika, domácí) a Serge MORAND (250 Francie)
Vydání
BMC Evolutionary Biology, BioMed Central Ltd, London, 2008, 1471-2148
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10600 1.6 Biological sciences
Stát vydavatele
Velká Británie a Severní Irsko
Utajení
není předmětem státního či obchodního tajemství
Impakt faktor
Impact factor: 4.050
Kód RIV
RIV/00216224:14310/08:00024611
Organizační jednotka
Přírodovědecká fakulta
UT WoS
000254282400001
Klíčová slova anglicky
trade-off - life history traits - parasitism - cyprinid fish - immunity - reproduction
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 30. 7. 2013 15:43, Ing. Andrea Mikešková
V originále
Background The main prediction of life-history theory is that optimal energy allocated among the traits is related to the growth, maintenance and survival. It is hypothesized that the optimal resource allocated to immune function, which generates resistance towards parasites and reduce the fitness losses caused by parasitism, is depending on other requirements for energetic resource and the benefits associated with them. The aims of this study are to investigate in a comparative way (1) how parasitism is related to fish life history traits (fecundity, longevity, mortality), (2) whether there is a trade-off between reproduction and immune investments in fish females (i.e. energetic hypothesis) and in males (i.e. immunohandicap hypothesis), (3) whether parasitism influences host immunity (spleen size) and reproduction (gonad size) in females and males. Results Data on metazoan parasites of 23 cyprinid fish species from Central Europe were used for the analyses as well as new data collected from a field study. Ectoparasite species richness was negatively correlated with the fish mortality estimated by the k-value and positively correlated with fish body size, suggesting that parasite diversity increases with fish longevity. A negative relationship between spleen size and gonad size, controlling for fish body size, was found in females but not in males. Moreover, parasite abundance was positively correlated with fish spleen size and negatively with fish gonad size in females. Conclusions The comparative analyses using cyprinid fish species demonstrated that natural mortality could be considered as a factor contributing to the variability of parasite species richness and moreover, parasite species benefit from long-lived fish. The results obtained from the analyses investigating the potential trade-off between reproduction and immunity could be interpreted as an energetic trade-off between female reproduction and immune function. The lack of negative relationship between gonad size and spleen size in males did not support our prediction based on the immunohandicap hypothesis.
Česky
Background The main prediction of life-history theory is that optimal energy allocated among the traits is related to the growth, maintenance and survival. It is hypothesized that the optimal resource allocated to immune function, which generates resistance towards parasites and reduce the fitness losses caused by parasitism, is depending on other requirements for energetic resource and the benefits associated with them. The aims of this study are to investigate in a comparative way (1) how parasitism is related to fish life history traits (fecundity, longevity, mortality), (2) whether there is a trade-off between reproduction and immune investments in fish females (i.e. energetic hypothesis) and in males (i.e. immunohandicap hypothesis), (3) whether parasitism influences host immunity (spleen size) and reproduction (gonad size) in females and males. Results Data on metazoan parasites of 23 cyprinid fish species from Central Europe were used for the analyses as well as new data collected from a field study. Ectoparasite species richness was negatively correlated with the fish mortality estimated by the k-value and positively correlated with fish body size, suggesting that parasite diversity increases with fish longevity. A negative relationship between spleen size and gonad size, controlling for fish body size, was found in females but not in males. Moreover, parasite abundance was positively correlated with fish spleen size and negatively with fish gonad size in females. Conclusions The comparative analyses using cyprinid fish species demonstrated that natural mortality could be considered as a factor contributing to the variability of parasite species richness and moreover, parasite species benefit from long-lived fish. The results obtained from the analyses investigating the potential trade-off between reproduction and immunity could be interpreted as an energetic trade-off between female reproduction and immune function. The lack of negative relationship between gonad size and spleen size in males did not support our prediction based on the immunohandicap hypothesis.
Návaznosti
| GA524/04/1128, projekt VaV |
| ||
| GA524/07/0188, projekt VaV |
| ||
| MSM0021622416, záměr |
|