Department of Veterinary Science, Gluck Equine Research Center, University of Kentucky, Lexington, KY 40546-0099, USA.
Parasitol Res. 2012 Sep;111(3):1397-400. doi: 10.1007/s00436-012-2881-2. Epub 2012 Mar 8.
Prevalence of hookworms (Uncinaria lucasi Stiles, 1901) was determined in the northern fur seal (Callorhinus ursinus Linnaeus, 1758) on St. Paul Island (SPI), Alaska in July and August, 2011. Three of 61 (4.9%) dead pups harbored 1 to 13 adult hookworms each in their intestines. Parasitic larvae (L(3)) of hookworms were recovered from the blubber of 4 of 133 (3%) of subadult males (SAMs) examined. One parasitic L(3) was detected from each infected SAM. Adult U. lucasi (n = 3) were found in the intestine of 1 of 105 SAMs examined (0.95%). This is the first documented finding of adult U. lucasi in SAMs of the northern fur seals. Continued low prevalence of hookworms the last several years parallels the tremendous decline in the number of fur seals on SPI over a similar time period.
2011 年 7 月至 8 月，在阿拉斯加的圣保罗岛（SPI）对北象海豹（Callorhinus ursinus Linnaeus，1758）进行了钩虫（Uncinaria lucasi Stiles，1901）的流行情况调查。在 61 只死亡幼崽中，有 3 只（4.9%）每只幼崽的肠道内寄生了 1 到 13 条成体钩虫。从 133 只亚成体雄性（SAM）中检查的 4 只（3%）的海豹脂肪中回收了钩虫的寄生幼虫（L(3)）。受感染的每只 SAM 中都检测到 1 个寄生 L(3)。在检查的 105 只 SAM 中，有 1 只（0.95%）发现了成年 U. lucasi。这是首次在北象海豹的 SAM 中发现成年 U. lucasi。在过去几年中，钩虫的低流行率与 SPI 上海豹数量在相似时间段内的巨大下降相吻合。
