Spraker Terry R, DeLong Robert L, Lyons Eugene T, Melin Sharon R
Department of Microbiology, Immunology and Pathology, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO 80526, USA.
J Wildl Dis. 2007 Apr;43(2):179-88. doi: 10.7589/0090-3558-43.2.179.
Large breeding populations of California sea lions (Zalophus californianus) are located on San Miguel and San Nicolas Islands in the Southern California Bight. In 2001, there was a substantial increase in pup mortality in late summer and fall. From June 2002 to January 2003, 208 freshly dead pups were examined on San Miguel Island, the most western of the Channel Islands off the coast of southern California. Tissues from 186 of these pups were examined histologically. The primary lesions in 133 (72%) of the pups were an enteritis associated with hookworms and infections in major organs. Emaciation/starvation in 43 pups (26%) was the second most important cause of death.
大量的加利福尼亚海狮（Zalophus californianus）繁殖群体位于南加利福尼亚湾的圣米格尔岛和圣尼古拉斯岛上。2001年，夏末和秋季幼崽死亡率大幅上升。从2002年6月到2003年1月，在圣米格尔岛（南加利福尼亚海岸外海峡群岛最西部的岛屿）检查了208只刚死亡的幼崽。对其中186只幼崽的组织进行了组织学检查。133只（72%）幼崽的主要病变是与钩虫相关的肠炎以及主要器官感染。43只（26%）幼崽的消瘦/饥饿是第二大重要死因。
