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Studies on the helminth fauna of Alaska. XIII. Disease in the sea otter, with special reference to helminth parasites

https://arctichealth.org/en/permalink/ahliterature99651
Source
Ecology. 1953 Jul;34(3):584-604
Publication Type
Article
Date
Jul-1953
  1 website  
Author
Rausch, R
Author Affiliation
Arctic Health Research Center
Source
Ecology. 1953 Jul;34(3):584-604
Date
Jul-1953
Language
English
Geographic Location
U.S.
Publication Type
Article
Keywords
Aleutian Island
Amchitka
Enhydra lutris
Helminth parasites
Histopathological study
Morbidity
Rat Islands
Sea otter
U.S. Fish and Wildlife Service
Abstract
During the spring of 1951, the U.S. Fish and Wildlife Service undertook the removal of sea otter, Enhydra lutris (L.), from the Aleutian Island of Amchitka, for the purpose of restocking range from which the animals have long been exterminated. The decision to undertake this activity was influenced by the nature of military operations planned for the island later the same year. The capture and removal of the otter were under the supervision of Mr. Robert D. Jones, Biologist, U.S. Fish and Wildlife Service. Heavy losses among the animals shortly after capture made the venture unsuccessful. Many deaths were concurrent among animals in the wild state. The writer was asked to investigate the causes of disease in the sea otter, and it is the purpose of this paper to report the results of these investigations.
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Studies on the helminth fauna of Alaska. XVII. Notes on the intermediate stages of some helminth parasites of the sea otter

https://arctichealth.org/en/permalink/ahliterature99647
Source
Biological Bulletin. 1954 Feb;106(1):107-121
Publication Type
Article
Date
Feb-1954
  1 website  
Author
Schiller, EL
Author Affiliation
Arctic Health Research Center
Source
Biological Bulletin. 1954 Feb;106(1):107-121
Date
Feb-1954
Language
English
Geographic Location
U.S.
Publication Type
Article
Keywords
Aleutian Island
Amchitka
Enhydra lutris
Excysted larvae
Greenling
Helminth parasites
Marine invertebrates
Microphallus pirum
Mortality
Nematode infections
Porrocaecum decipiens
Sculpin
Sea otters
Trematode metacercariae
Abstract
According to the work of Rausch (1953) , two species of helminth parasites, Porrocaecum decipiens (Krabbe, 1878) and Microphallus pirum (Afanas'ev, 1941), are pathogenic for the sea otter, Enhydra lutris (L.) , on the Aleutian Island of Amchitka. In continuation of investigations of sea otter mortality on Amchitka during the latter part of May and early June, 1952, the writer made an attempt to obtain information on the life cycles and developmental characteristics of these parasites. It is the purpose of this paper to report the results of these observations.
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Summary of ecological effects of Milrow.

https://arctichealth.org/en/permalink/ahliterature301432
Source
Bioscience. 21 (12) : 707-711.
Publication Type
Article
Date
June 15, 1971
Author
Kirkwood, James B.
Source
Bioscience. 21 (12) : 707-711.
Date
June 15, 1971
Language
English
Geographic Location
U.S.
Publication Type
Article
Keywords
Alaska
Amchitka
Milrow nuclear test
Otters
Lakes
Marine ecology
Sea
Freshwater fishes
Ecosystems
Bird nesting
Crabs
Abstract
The immediate ecological changes resulting from the nuclear detonation Milrow seem to have been relatively small in comparison to the effects associated with site preparation and other operational activities. Testtime studies, conducted by Battelle's Columbus Laboratories and subcontractors, designed to detect and measure the effects of Milrow are described and the changes that have been detected are summarized. The long-term ecological effects of Milrow are the subject of several continuing investigations.
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Temporal variations of natural and anthropogenic radionuclides in sea otter skull tissue in the North Pacific Ocean.

https://arctichealth.org/en/permalink/ahliterature301216
Source
Journal of Environmental Radioactivity. 2003. 64 (1) : 1-18.
Publication Type
Article
Date
2003
Author
Baskaran, M.
Hong, G.-H.
Dayton, S.
Bodkin, J.L.
Kelley, J.J.
Source
Journal of Environmental Radioactivity. 2003. 64 (1) : 1-18.
Date
2003
Language
English
Geographic Location
U.S.
Publication Type
Article
Keywords
Alaska
Adak
Amchitka
Sea otter (Enhydra lutris)
Animals
Ecosystem
Food chain
Nuclear Warfare
Radioisotopes/analysis
Radioisotopes/pharmacokinetics
Skull/chemistry
Time Factors
Water pollutants, radioactive
Abstract
Marine mammals being among the top predators in the food web tend to accumulate organic and inorganic contaminants from the environment. The body burden of contaminants in these species could reflect their foods and thus contaminant levels could serve as proxies on the changes of ecosystem. A pilot study was carried out to investigate the possibility of radionuclide leakage at Amchitka using a suite of sea otter (Enhydra lutris) skulls collected near Amchitka nuclear test-sites before (1950s) and after the testing (1990s), and at Adak, another Aleutian Island, about 300 km from Amchitka, where the potential impact of radionuclide leakage from Amchitka is expected to be negligible. In addition, the naturally occurring and anthropogenic radionuclide content on the sea otter skull was also utilized to investigate if there was any significant ecosystem changes in the environment. Concentration of 210Pb in sea otter bones collected during the 1950s was significantly higher than those collected in the 1990s. We propose that among the various factors that could cause this higher enrichment in 210Pb, changes in the sea otter prey is the most likely one. Comparison of the 137Cs, 90Sr, 239,240Pu concentrations appear not to be significantly higher in sea otter skulls collected in 1990s from Amchitka where the underground tests in 1965-71 than those from Adak, although significant differences were detected among different groups collected at various times.
PubMed ID
12469767 View in PubMed
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