Parasitism, life history traits and immune defence in cyprinid fish from Central Europe

• Published in: BMC Evolutionary Biology
• Main Authors: Simková, Andrea, Lafond, Thomas, Ondračková, Markéta, Jurajda, Pavel, Ottová, Eva, Morand, Serge
• Other Authors: Institute of Botany and Zoology Faculty of Science, Masaryk University Brno (MUNI), Parasitologie évolutive (PE), École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS), Institute of Vertebrate Biology of the Czech Academy of Sciences (IVB / CAS), Czech Academy of Sciences Prague (CAS), Institut des Sciences de l'Evolution de Montpellier (UMR ISEM), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-École pratique des hautes études (EPHE), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Montpellier (UM)-Institut de recherche pour le développement IRD : UR226-Centre National de la Recherche Scientifique (CNRS)
• Format: Article in Journal/Newspaper
• Language: English
• Published: HAL CCSD 2008
• Subjects: ROACH RUTILUS-RUTILUS; IMMUNOCOMPETENCE HANDICAP; SEXUAL ORNAMENTATION; INDEPENDENT CONTRASTS; SPECIES RICHNESS; SEASONAL-CHANGES; ABRAMIS-BRAMA; BARN SWALLOW; ARCTIC CHARR; SPLEEN SIZE; [SDV]Life Sciences [q-bio]; Arctic; Brama; Arctic charr
• Online Access: https://hal.archives-ouvertes.fr/halsde-00525563; https://hal.archives-ouvertes.fr/halsde-00525563/document; https://hal.archives-ouvertes.fr/halsde-00525563/file/1471-2148-8-29.pdf; https://doi.org/10.1186/1471-2148-8-29

International audience 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.