Fur seal investigations, Pribilof Islands, Alaska

Metadata Updated: January 29, 2020

From Z July to 5 August, 43, 203 male seals were taken on St. Paul Island and 10,477 were taken on St. George Island. The peak of the kill occurred from 22 to 26 July. Age classification in percent was as follows: St. Paul, age 2--4, age 3--61, age 4-33, age 5--2; St, George, age 2--6, age 3--56, age 4--36, age S--2. The kill was 15 to 20 percent less than predicted for 1962. The forecast for 1963 is 59, 000 males if the kill is terminated on 31 July and 72, 000 if terminated on 15 August. The pup population on the Pribilof Islands for 1959 was estimated to be 838, 000. Tag ratios from fall sampling of pups produced a low estimate for 1962 (382, 000). Harem and idle bulls counted were 12, 674 and 11, 759, respectively. A total of 43, 860 females were removed from the herd. Females taken in August were 55 percent ages 3-5; in September these ages made up 24 percent. The percent of postpartum females increased when animals were taken on rookeries and when the proportion of older animals increased. A total of 3, 718 tagged seals, 2,417 with checkmarks only and 20 tagged on Soviet islands were recovered. Fifty thousand seal pups and 801 yearlings were tagged. Land pup mortality was 53, 748. Tagged pups weighed 0. 46 to 1. 07 kg less than untagged pups in early September and early October. Seal pups are infected with the' intestinal phase of hookworm by ingesting the parasite with milk. Seals of all ages harbor a tissue phase of hookworm in their belly blubber.

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Restricted: This dataset can only be accessed or used under certain conditions. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.
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References

https://ecos.fws.gov/ServCat/Reference/Profile/106167

Dates

Metadata Created Date January 29, 2020
Metadata Updated Date January 29, 2020

Metadata Source

Harvested from DOI Open Data

Additional Metadata

Resource Type Dataset
Metadata Created Date January 29, 2020
Metadata Updated Date January 29, 2020
Publisher Fish and Wildlife Service
Unique Identifier FWS_ServCat_106167
Maintainer
Brent Frakes
Maintainer Email
Public Access Level restricted public
Bureau Code 010:18
Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
Metadata Catalog ID C:\Program Files (x86)\FWS\DataStore\Application\OpenData\FWS_ServCat_v1_1.json
Schema Version https://project-open-data.cio.gov/v1.1/schema
Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
Data Quality true
Harvest Object Id 9f953a3e-9355-43d0-98a9-d0175abce905
Harvest Source Id 5b7e4031-1e2d-428b-92e2-56554bbd7371
Harvest Source Title DOI Open Data
Data First Published 1962-11-01
Homepage URL https://ecos.fws.gov/ServCat/Reference/Profile/106167
Data Last Modified 1962-11-01
Program Code 010:094, 010:028
Related Documents "https://ecos.fws.gov/ServCat/Reference/Profile/106167"
Rights The information resource is proprietary and/or copyrighted. Access to this information by the public is very limited. Please contact the associated Point of Contact regarding additional use constraints and requirements for obtaining the information.
Source Datajson Identifier true
Source Hash fb46af4f1c90d9282c0c993102cf50c82d70c1c6
Source Schema Version 1.1
Spatial -179.150085,51.2099228,-133.48848,70.32941
Category "Unpublished Report"

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