J 2011

Are fish immune systems really affected by parasites? An immunoecological study of common carp (Cyprinus carpio).

ROHLENOVÁ, Karolína, Serge MORAND, Pavel HYRŠL, Soňa TOLAROVÁ, Martin FLAJŠHANS et. al.

Basic information

Original name

Are fish immune systems really affected by parasites? An immunoecological study of common carp (Cyprinus carpio).

Name in Czech

Are fish immune systems really affected by parasites? An immunoecological study of common carp (Cyprinus carpio).

Authors

ROHLENOVÁ, Karolína (203 Czech Republic, belonging to the institution), Serge MORAND (250 France), Pavel HYRŠL (203 Czech Republic, belonging to the institution), Soňa TOLAROVÁ (203 Czech Republic, belonging to the institution), Martin FLAJŠHANS (203 Czech Republic) and Andrea VETEŠNÍKOVÁ ŠIMKOVÁ (703 Slovakia, guarantor, belonging to the institution)

Edition

Parasites and Vectors, 2011, 1756-3305

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

30102 Immunology

Country of publisher

United Kingdom of Great Britain and Northern Ireland

Confidentiality degree

není předmětem státního či obchodního tajemství

Impact factor

Impact factor: 2.937

RIV identification code

RIV/00216224:14310/11:00049853

Organization unit

Faculty of Science

UT WoS

000293948100001

Keywords (in Czech)

Cyprinus carpio; immunity; parasites

Keywords in English

Cyprinus carpio; immunity; parasites

Tags

Tags

International impact, Reviewed

Abstract

V originále

The basic function of the immune system is to protect an organism against infection in order to minimize the fitness costs of being infected. According to life-history theory, energy resources are in a trade-off between the costly demands of immunity and other physiological demands. In this study, we investigated the potential associations between the physiology and immunocompetence of common carp (Cyprinus carpio) collected during five different periods of a given year. We analyzed which of two factors, seasonality or parasitism, had the strongest impact on changes in fish physiology and immunity. We found that seasonal changes play a key role in affecting the analyzed measurements of physiology, immunity and parasitism. The correlation analysis revealed the relationships between the measures of overall host physiology, immunity and parasite load when temporal variability effect was removed. We found that fish with a worse condition status were infected more by monogeneans, representing the most abundant parasite group. The high infection by cestodes seems to activate the phagocytes. Even if no direct trade-off between the measures of host immunity and physiology was confirmed when taking into account the seasonality, it seems that seasonal variability affects host immunity and physiology through energy allocation in a trade-off between life important functions, especially reproduction and fish condition. Host immunity measures were not found to be in a trade-off with the investigated physiological traits or functions, but we confirmed the immunosuppressive role of 11-ketotestosterone on fish immunity measured by complement activity. We suggest that the different parasite life-strategies influence different aspects of host physiology and activate the different immunity pathways.

Links

GA524/07/0188, research and development project
Name: Úloha imunitní investice v kontextu kompromisů: imunoekologické studium vztahů mezi reprodukcí, imunitou a parazitizmem u sladkovodních ryb
Investor: Czech Science Foundation, The role of immune investment in the context of trade-offs: immuno-ecological study of the relationships among reproduction, immunity and parasitism
MSM0021622416, plan (intention)
Name: Diverzita biotických společenstev a populací: kauzální analýza variability v prostoru a čase
Investor: Ministry of Education, Youth and Sports of the CR, Diversity of Biotic Communities and Populations: Causal Analysis of variation in space and time