Aerial survey of sea otters in the Cordova vicinity

Metadata Updated: October 9, 2019

The movement of significantly large numbers of sea otters into the Cordova vicinity has generated a local storm of protest concerning the ability of sea otters to greatly reduce shellfish populations. Residents of Cordova use local shellfish resources, particularly clams and dungeness crabs, for subsistence food, commercial sale, and recreational use. In 1981, two years after large numbers of sea otters began using the area immediately around Cordova, this area was closed to all taking of clams and crabs to protect low stocks (Johnson 1982). A slow decline was evident in dungeness stocks in nearshore waters of the Cordova area following a major uplift of the sea bed caused by the 1964 earthquake. However, with the mass movement of sea otters into Orca Inlet, Hawkins Cutoff, and adjacent areas, the dungeness population has suffered a severe decline (Kimker 1982, and Garshelis 1982). Presently boats out of Cordova fishing for dungeness crab are utilizing the waters of Controller Bay and the area just west of Kanak Island. There is also a commercial razor clam fishery on Kanak Island. Concern has been expressed by fisherman's groups and the Alaska Department of Fish and Game about the possibility of sea otters moving eastward across the Copper River Flats and establishing a population center in the Controller Bay area. The purpose of this survey was to document the present distribution and relative abundance of sea otters in the Cordova area including the Copper River Flats and the Controller Bay vicinity. Future surveys are planned to detect periodic changes in distribution and abundance.

Access & Use Information

Public: This dataset is intended for public access and use. 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.

Downloads & Resources




Metadata Created Date April 30, 2019
Metadata Updated Date October 9, 2019

Metadata Source

Harvested from DOI CKAN Harvest Source

Additional Metadata

Resource Type Dataset
Metadata Created Date April 30, 2019
Metadata Updated Date October 9, 2019
Publisher Fish and Wildlife Service
Unique Identifier FWS_ServCat_69962
Brent Frakes
Maintainer Email
Public Access Level public
Bureau Code 010:18
Metadata Context
Metadata Catalog ID C:\Program Files (x86)\FWS\DataStore\Application\OpenData\FWS_ServCat_v1_1.json
Schema Version
Catalog Describedby
Extras Rollup {"harvest_source_id": "34ce571b-cb98-4e0b-979f-30f9ecc452c5", "issued": "1983-08-10", "resource-type": "Dataset", "references": "\"\"", "source_hash": "a8d0536efb6dfb70a86b98bea871ccf9a0acedff", "accessLevel": "public", "theme": "\"Unpublished Report\"", "spatial": "-179.150085,51.2099228,-133.48848,70.32941", "catalog_conformsTo": "", "catalog_@context": "", "catalog_describedBy": "", "harvest_source_title": "DOI CKAN Harvest Source", "source_schema_version": "1.1", "programCode": "010:094", "010:028", "bureauCode": "010:18", "landingPage": "", "harvest_object_id": "15517139-3e98-487e-a672-41aa6330ec04", "publisher": "Fish and Wildlife Service", "modified": "1983-08-10", "source_datajson_identifier": "true", "catalog_@id": "C:\\Program Files (x86)\\FWS\\DataStore\\Application\\OpenData\\FWS_ServCat_v1_1.json", "identifier": "FWS_ServCat_69962"}
Harvest Object Id d665a31b-9fca-4e18-aaba-d0c6d6f386ee
Harvest Source Id 34ce571b-cb98-4e0b-979f-30f9ecc452c5
Harvest Source Title DOI CKAN Harvest Source
Data First Published 1983-08-10
Homepage URL
Data Last Modified 1983-08-10
Program Code 010:094, 010:028
Related Documents ""
Source Datajson Identifier true
Source Hash a8d0536efb6dfb70a86b98bea871ccf9a0acedff
Source Schema Version 1.1
Spatial -179.150085,51.2099228,-133.48848,70.32941
Category "Unpublished Report"

Didn't find what you're looking for? Suggest a dataset here.