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Seasonal prevalence of Clostridium botulinum type C in the sediments of the northern California wetland

Journal of Wildlife Diseases

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Abstract

The prevalence of Clostridium botulinum type C (% of positive sediment samples) was determined in 10 marshes at Sacramento National Wildlife Refuge (SNWR), located in the Central Valley of California (USA), where avian botulism epizootics occur regularly. Fifty-two percent of 2,200 sediment samples collected over an 18-mo period contained C. botulinum type C (both neurotoxic and aneurotoxic) which was present throughout the year in all 10 marshes. The prevalence of C. botulinum type C was similar in marshes with either high or low botulism losses in the previous 5 yr. Marshes with avian botulism mortality during the study had similar prevalences as marshes with no mortality. However, the prevalence of C. botulinum type C was higher in marshes that remained flooded all year (permanent) compared with marshes that were drained in the spring and reflooded in the fall (seasonal). The prevalence of C. botulinum type C declined in seasonal marshes during the dry period. Similar declines did not occur in the permanently flooded marshes.

Geospatial Extents

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Seasonal prevalence of Clostridium botulinum type C in the sediments of the northern California wetland
Series title:
Journal of Wildlife Diseases
Volume
29
Issue:
4
Year Published:
1993
Language:
English
Contributing office(s):
National Wildlife Health Center
Description:
p. 533-539
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Journal of Wildlife Diseases
First page:
533
Last page:
539
Country:
USA
State:
CA
City:
Sacramento
Other Geospatial:
Sacramento NWR
Online Only (Y/N):
N
Additional Online Files(Y/N):
N