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Persistence of external signs in Pacific herring Clupea pallasii Valenciennes with ichthyophoniasis

Overview of attention for article published in Journal of Fish Diseases, April 2015
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Title
Persistence of external signs in Pacific herring Clupea pallasii Valenciennes with ichthyophoniasis
Published in
Journal of Fish Diseases, April 2015
DOI 10.1111/jfd.12377
Pubmed ID
Authors

L M Hart, C M Conway, D G Elliott, P K Hershberger

Abstract

The progression of external signs of Ichthyophonus infection in Pacific herring Clupea pallasii Valenciennes was highly variable and asynchronous after intraperitoneal injection with pure parasite preparations; however, external signs generally persisted through the end of the study (429 days post-exposure). Observed signs included papules, erosions and ulcers. The prevalence of external signs plateaued 35 days post-exposure and persisted in 73-79% of exposed individuals through the end of the first experiment (147 days post-exposure). Among a second group of infected herring, external signs completely resolved in only 10% of the fish after 429 days. The onset of mortality preceded the appearance of external signs. Histological examination of infected skin and skeletal muscle tissues indicated an apparent affinity of the parasite for host red muscle. Host responses consisted primarily of granulomatous inflammation, fibrosis and necrosis in the skeletal muscle and other tissues. The persistence and asynchrony of external signs and host response indicated that they were neither a precursor to host mortality nor did they provide reliable metrics for hindcasting on the date of exposure. However, the long-term persistence of clinical signs in Pacific herring may be useful in ascertaining the population-level impacts of ichthyophoniasis in regularly observed populations.

Twitter Demographics

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Mendeley readers

The data shown below were compiled from readership statistics for 3 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Unknown 3 100%

Demographic breakdown

Readers by professional status Count As %
Researcher 2 67%
Student > Master 1 33%
Readers by discipline Count As %
Environmental Science 1 33%
Agricultural and Biological Sciences 1 33%
Immunology and Microbiology 1 33%

Attention Score in Context

This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 14 April 2015.
All research outputs
#10,944,339
of 12,349,442 outputs
Outputs from Journal of Fish Diseases
#528
of 672 outputs
Outputs of similar age
#188,884
of 226,907 outputs
Outputs of similar age from Journal of Fish Diseases
#16
of 24 outputs
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