Skip to main content
hyi
Banner
banner
bn

Toxicity of Clostridium Botulinum Type E Neurotoxin to Great Lakes Fish: Implications for Avian Botulism

The mechanism of type E botulism exposure in fish-eating birds is   unclear. Given that these birds are thought to eat live fish   exclusively, it seems likely that their prey play a key role in the   process, but the role of fish as potential transport vectors of   botulinum neurotoxin type E (BoNT/E) to birds has not been   adequately investigated. Between June 2  3 and April 2  4 a   methodological model for exposing fish to Clostridium botulinum was   developed and used to compare the sensitivity of rainbow trout   (Oncorhynchus mykiss), round goby (Neogobius melanostomas), walleye   (Stizostedion vitreum), and yellow perch (Perca flavescens) to four   doses ( , 8  , 1,5  , and 4,    Mouse Lethal Doses) of Clostridium   botulinum type E neurotoxin. Each fish species expressed unique   changes in both behavior and skin pigmentation prior to death.  Yellow perch survived significantly longer (P, . 5) than the three   other species at all toxin treatments. Results of this study suggest   that live fish can represent a significant vector for transfer of   BoNT/E to birds.    (type E botulism); (avian botulism); (C. botulinum); (botulism);   (BoNT/E); (rainbow trout); (Oncorhynchus mykiss); (round goby);   (Neogobius melanostomas); (walleye); (Stizostedion vitreum); (yellow   perch); (Perca flavescens)

Status
In progress
Type
Project
Start Date
End Date
Scope of Study
Laboratory Investigation
Impact of Pollutants
Exotic Species
Resource Management
Wildlife
Lake Basin Connecting Channels
Lake Erie
State Province
Ontario
Resource Being Monitored
Fisheries
Wildlife
Beneficial Use Impairment Assessments
Loss of Fish and Wildlife Habitat
Annex Numbers
Research & Development
Annex 17
Cause-effect inter-relationships of productivity and ecotoxicity
Impact of water quality and AIS on fish and wildlife populations and habitats
General
Monitoring
Annex
  • Annex Numbers
    Annex Numbers
    Research & Development
  • Annex 17
    Annex 17
    Cause-effect inter-relationships of productivity and ecotoxicity
    Impact of water quality and AIS on fish and wildlife populations and habitats

The Great Lakes - St. Lawrence Research Inventory is an
interactive, Internet-based, searchable database created as a tool to collect and disseminate
up-to-date information about research projects in the
Great Lakes - St. Lawrence Region.