Effect of parasite infection on overwinter mortality in juvenile fish

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F12%3A00058167" target="_blank" >RIV/00216224:14310/12:00058167 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Effect of parasite infection on overwinter mortality in juvenile fish

Popis výsledku v původním jazyce

Body condition and parasite abundance was examined in early- and late-hatched European bitterling Rhodeus amarus during the first overwintering period in two seasons. Body condition in early-hatched fish did not change during winter, and increased significantly in March. From November to February, late-hatched fish showed a decreasing trend in condition. Despite a significant increase in March, however, late-hatched fish condition only reached the same level as before winter. Total parasite abundance increased significantly in winter in both fish size-classes, reflecting a seasonal increase in monogenean infection. Early-hatched fish were parasitized significantly more than late-hatched fish during winter, but only in late-hatched fish was a negative correlation between parasite infection and condition found and a significant decrease in parasite abundance recorded after wintering, indicating mortality of heavily infected individuals with low condition during the winter.

Název v anglickém jazyce

Effect of parasite infection on overwinter mortality in juvenile fish

Popis výsledku anglicky

Body condition and parasite abundance was examined in early- and late-hatched European bitterling Rhodeus amarus during the first overwintering period in two seasons. Body condition in early-hatched fish did not change during winter, and increased significantly in March. From November to February, late-hatched fish showed a decreasing trend in condition. Despite a significant increase in March, however, late-hatched fish condition only reached the same level as before winter. Total parasite abundance increased significantly in winter in both fish size-classes, reflecting a seasonal increase in monogenean infection. Early-hatched fish were parasitized significantly more than late-hatched fish during winter, but only in late-hatched fish was a negative correlation between parasite infection and condition found and a significant decrease in parasite abundance recorded after wintering, indicating mortality of heavily infected individuals with low condition during the winter.

Druh

O - Ostatní výsledky

CEP obor

EG - Zoologie

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2012

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů