Animal Sciences Commons^™

Ulcerative Disease Outbreak In Crayfish Orconectes Propinquus Linked To Saprolegnia Australis In Big Muskellunge Lake, Wisconsin, L Krugner-Higby, D Haak, Ptj Johnson, Jeffrey D. Shields, Wm Jones, Kimberly S. Reece, Et Al.

VIMS Articles

Crayfish populations in the area of the North Temperate Lakes Long Term Ecological Research (LTER) project, Wisconsin, USA, have been monitored for >25 yr. In 2005, native crayfish Orconectes propinquus from Big Muskellunge Lake were found with ulcerated lesions in the cuticle In 2006, lesions occurred in 9 5% of sampled crayfish from the lake (n = 3146). Ulcers generally occurred on the appendages of affected individuals but varied in location and severity. The prevalence of ulcers varied widely among sites, sample depths, and sampling dates, ranging from 20% The prevalence of ulcers in crayfish increased from a minimum in …