Description
Original provider: National Marine Mammal Laboratory Dataset credits: National Marine Mammal Laboratory Abstract: From 13 July to 24 August, 1993, a part of a larger study, waters off the Alaskan Peninsula were surveyed for killer whales (Orcinus orca) from the NOAA Glorita using line-transect methodology. To provide adequate coverage throughout the area, the study was limited to areas of known killer whale concentrations. The vessel was 44.8 m (147 ft) long and had a bridge height of 8.8 m (29 feet). Purpose: The objectives of this study were as follows: 1) Develop a photographic identification catalogue of each killer whale encountered, and its pod, to determine pod identity, distribution, and movements relative to annual survey effort, 2) Obtain minimum population estimated of killer whales in the southeastern Bering Sea, central/eastern Aleutian Islands, western Gulf of Alaska (including Prince William Sound), and southeastern Alaska, and 3) Establish baseline data for detecting annual changes in abundance. Supplemental information: This dataset and associated effort data were updated on September 8, 2005. Those who downloaded them before that date should renew them.
Data Records
The data in this occurrence resource has been published as a Darwin Core Archive (DwC-A), which is a standardized format for sharing biodiversity data as a set of one or more data tables. The core data table contains 88 records.
This IPT archives the data and thus serves as the data repository. The data and resource metadata are available for download in the downloads section. The versions table lists other versions of the resource that have been made publicly available and allows tracking changes made to the resource over time.
Versions
The table below shows only published versions of the resource that are publicly accessible.
How to cite
Researchers should cite this work as follows:
Dahlheim. M.E. 1994. Abundance and distribution of killer whales (Orcinus orca) in Alaska, 1993. Annual report for 1992 to the Office of Protected Resources, NMFS, NOAA, Silver Spring, MD. 28 pp.
Rights
Researchers should respect the following rights statement:
The publisher and rights holder of this work is OBIS-SEAMAP. This work is licensed under a Creative Commons Attribution Non Commercial (CC-BY-NC 4.0) License.
GBIF Registration
This resource has been registered with GBIF, and assigned the following GBIF UUID: d8125c76-b612-4db0-b8a7-750d5988bc15. OBIS-SEAMAP publishes this resource, and is itself registered in GBIF as a data publisher endorsed by Ocean Biodiversity Information System.
Keywords
Occurrence,Killer Whale,Orcinus orca,vessel survey,survey,abundance; Observation; Occurrence
External data
The resource data is also available in other formats
| OBIS-SEAMAP Dataset Page | http://seamap.env.duke.edu/dataset/138 UTF-8 Interactive map |
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| FGDC Metadata | http://seamap.env.duke.edu/dataset/138/xml UTF-8 XML |
Contacts
- Owner ●
- Originator ●
- Point Of Contact
- Metadata Provider ●
- Distributor
Geographic Coverage
Alaskan Peninsula,Alaska
| Bounding Coordinates | South West [54.161, -166.41], North East [58.041, -152.282] |
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Taxonomic Coverage
Scientific names are based on the Integrated Taxonomic Information System (ITIS).
| Order | Cetacea (cetaceans), Cetacea (cetaceans) |
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| Species | Phocoenoides dalli (Dall's Porpoise), Balaenoptera physalus (Fin Whale), Phocoena phocoena (Harbor Porpoise), Megaptera novaeangliae (Humpback Whale), Orcinus orca (Killer Whale), Balaenoptera acutorostrata (Minke Whale) |
Temporal Coverage
| Start Date / End Date | 1993-08-05 / 1993-08-11 |
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Project Data
No Description available
| Title | NMML Killer Whale Vessel, Alaska Peninsula 1993 |
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| Funding | NA |
The personnel involved in the project:
- Owner
- Owner
Sampling Methods
NA
| Study Extent | NA |
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Method step description:
- NA
Collection Data
| Collection Name | zd_138 |
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| Collection Identifier | zd_138 |
| Parent Collection Identifier | OBIS-SEAMAP |
Additional Metadata
marine, harvested by iOBIS
| Purpose | The objectives of this study were as follows: 1) Develop a photographic identification catalogue of each killer whale encountered, and its pod, to determine pod identity, distribution, and movements relative to annual survey effort, 2) Obtain minimum population estimated of killer whales in the southeastern Bering Sea, central/eastern Aleutian Islands, western Gulf of Alaska (including Prince William Sound), and southeastern Alaska, and 3) Establish baseline data for detecting annual changes in abundance. |
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| Alternative Identifiers | http://ipt.env.duke.edu/resource?r=zd_138 |