Energetic Cost of Ichthyophonus Infection in Juvenile Pacific Herring (Clupea pallasii)
Joint Authors
Hershberger, Paul K.
Gregg, Jake L.
Vollenweider, Johanna J.
Heintz, Ron A.
Source
Journal of Parasitology Research
Issue
Vol. 2011, Issue 2011 (31 Dec. 2011), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2011-04-13
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
The energetic costs of fasting and Ichthyophonus infection were measured in juvenile Pacific herring (Clupea pallasii) in a lab setting at three temperatures.
Infected herring incurred significant energetic costs, the magnitude of which depended on fish condition at the time of infection (fat versus lean).
Herring that were fed continually and were in relatively good condition at the time of infection (fat) never stored lipid despite ad libitum feeding.
In feeding herring, the energetic cost of infection was a 30% reduction in total energy content relative to controls 52 days post infection.
Following food deprivation (lean condition), infection caused an initial delay in the compensatory response of herring.
Thirty-one days after re-feeding, the energetic cost of infection in previously-fasted fish was a 32% reduction in total energy content relative to controls.
Body composition of infected herring subsequently recovered to some degree, though infected herring never attained the same energy content as their continuously fed counterparts.
Fifty-two days after re-feeding, the energetic cost of infection in previously-fasted fish was a 6% reduction in total energy content relative to controls.
The greatest impacts of infection occurred in colder temperatures, suggesting Ichthyophonus-induced reductions in body condition may have greater consequences in the northern extent of herring's range, where juveniles use most of their energy reserves to survive their first winter.
American Psychological Association (APA)
Vollenweider, Johanna J.& Gregg, Jake L.& Heintz, Ron A.& Hershberger, Paul K.. 2011. Energetic Cost of Ichthyophonus Infection in Juvenile Pacific Herring (Clupea pallasii). Journal of Parasitology Research،Vol. 2011, no. 2011, pp.1-10.
https://search.emarefa.net/detail/BIM-508729
Modern Language Association (MLA)
Vollenweider, Johanna J.…[et al.]. Energetic Cost of Ichthyophonus Infection in Juvenile Pacific Herring (Clupea pallasii). Journal of Parasitology Research No. 2011 (2011), pp.1-10.
https://search.emarefa.net/detail/BIM-508729
American Medical Association (AMA)
Vollenweider, Johanna J.& Gregg, Jake L.& Heintz, Ron A.& Hershberger, Paul K.. Energetic Cost of Ichthyophonus Infection in Juvenile Pacific Herring (Clupea pallasii). Journal of Parasitology Research. 2011. Vol. 2011, no. 2011, pp.1-10.
https://search.emarefa.net/detail/BIM-508729
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-508729