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Search For The Causative Organism Of Waterfowl Deaths At Lake Onalaska, Derek Skillings
Search For The Causative Organism Of Waterfowl Deaths At Lake Onalaska, Derek Skillings
Journal of Undergraduate Research at Minnesota State University, Mankato
American coots (Fulica americana) and diving ducks, including lesser scaup (Aythya affinis) and ring-necked ducks (Aythya collaris) have been dying in significant numbers on Lake Onalaska since 2001. Bird mortality is being attributed to parasitic infections from two intestinal trematodes, Cyathocotyle bushiensis and Sphaeridiotrema globulus. The birds begin dying in as little as two weeks of landing at this lake. Rapid mortality is not typically associated with trematode parasitism. Assuming these birds acquired their infections at Lake Onalaska, leads to the conclusion that our current understanding of the disease in this parasite-host system is lacking. Neorickettsiales are a group of …
The Abundance And Diversity Of Intestinal Trematodes Collected From Blue Winged Teal And Ring-Neck Ducks Inhabiting Lake Winnibigoshish, Minnesota, Omolayo Ogunnowo
The Abundance And Diversity Of Intestinal Trematodes Collected From Blue Winged Teal And Ring-Neck Ducks Inhabiting Lake Winnibigoshish, Minnesota, Omolayo Ogunnowo
Journal of Undergraduate Research at Minnesota State University, Mankato
This study investigated the abundance and diversity of parasites residing in the digestive tracts of blue winged teal and ring-necked ducks collected at Lake Winnibigoshish, MN. The trematode parasites we focused on in this study were removed from the anterior-most, 15cm segment of the small intestine of 10 individuals of each bird species. The parasites were initially stored in 10% formalin and were subsequently stained with Schneider’s aceto carmine, then mounted on microscope slides for diagnostic purposes. A total of 1605 trematodes were recovered from the birds. We found that blue wing teal and ring-necked ducks tended to contain different …