A Study of Uncinariasis in Northern Fur Seal Pups, Callorhinus ursinus, on the Rookeries of Bering Island, 2011–2012


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Abstract

Carcasses of northern fur seal pups, Callorhinus ursinus, collected from the rookeries of Bering Island (n = 133), were examined for hookworms Uncinaria spp. The parasite was found in 90% of the pups from the Severo-Zapadnoe rookery and in 45% of the pups from the Severnoe rookery. This difference in prevalence of nematode infection between the rookeries is associated with the type of substrate, as well as with the pattern of distribution of the seal reproductive groups on each of the rookeries.

About the authors

S. V. Fomin

Kamchatka Branch, Pacific Geographical Institute, Far East Branch, Russian Academy of Sciences

Author for correspondence.
Email: kalan_87@mail.ru
Russian Federation, Petropavlovsk-Kamchatsky, 683000

L. I. Konovalova

Vyatka State Agricultural Academy

Email: kalan_87@mail.ru
Russian Federation, Kirov, 610017

O. A. Belonovich

Kamchatka Branch, Russian Federal Research Institute of Fisheries and Oceanography (KamchatNIRO)

Email: kalan_87@mail.ru
Russian Federation, Petropavlovsk-Kamchatsky, 683000

R. L. DeLong

Marine Mammal Laboratory, Alaska Fisheries Science Center

Email: kalan_87@mail.ru
United States, Seattle, Washington, 98115

T. R. Spraker

Colorado State University, Fort Collins

Email: kalan_87@mail.ru
United States, Colorado, 80523

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