Dataset Overview | National Centers for Environmental Information (NCEI)

Laboratory analysis of diet of Pacific harbor seals at Umpqua River, Oregon and Columbia River, Oregon/Washington conducted from 1994-06-23 to 2005-09-03 (NCEI Accession 0139413)

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From 1994 to 2005, The National Marine Mammal Laboratories' California Current Ecosystem Program (AFSC/NOAA) collected fecal samples at the Umpqua River, Oregon and Columbia River, Oregon/Washington to examine the diet of Pacific harbor seals (Phoca vitulina). Scats were collected at various sites on the Umpqua River and at Desdemona sand spit on the Columbia River. Apart from describing the diet of Pacific harbor seals in these regions, of special interest was to determine the level of predation by these seals on endangered or threatened salmonids (e.g., cutthroat trout; Oncorhynchus clarkii).

Dataset Citation

Cite as: Orr, Anthony J.; Laake, Jeffrey L.; Banks, Adria S.; Dhruv, Mark I.; Huber, Harriet R.; Browne, Patience; DeLong, Robert L.; Mellman, Steven; Brown, Robin F. (2016). Laboratory analysis of diet of Pacific harbor seals at Umpqua River, Oregon and Columbia River, Oregon/Washington conducted from 1994-06-23 to 2005-09-03 (NCEI Accession 0139413). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/0139413. Accessed [date].

Dataset Identifiers

ISO 19115-2 Metadata

gov.noaa.nodc:0139413

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Download Data	HTTPS (download) Navigate directly to the URL for data access and direct download. FTP (download) These data are available through the File Transfer Protocol (FTP). FTP is no longer supported by most internet browsers. You may copy and paste the FTP link to the data into an FTP client (e.g., FileZilla or WinSCP).
Distribution Formats	Originator data format
Ordering Instructions	Contact NCEI for other distribution options and instructions.
Distributor	NOAA National Centers for Environmental Information +1-301-713-3277 NCEI.Info@noaa.gov
Dataset Point of Contact	NOAA National Centers for Environmental Information ncei.info@noaa.gov

Time Period	1994-06-23 to 2005-09-03
Spatial Bounding Box Coordinates	West: -125 East: -122 South: 42 North: 48.5
Spatial Coverage Map

General Documentation

NCEI Dataset Landing Page
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Descriptive Information
Navigate directly to the URL for a descriptive web page with download links.

Publication Dates	publication: 2016-01-07
Data Presentation Form	Digital table - digital representation of facts or figures systematically displayed, especially in columns
Dataset Progress Status	Complete - production of the data has been completed Historical archive - data has been stored in an offline storage facility
Data Update Frequency	As needed
Purpose	Fecal samples were collected to examine the diet (and inter-annual changes therein) of Pacific harbor seals at Umpqua and Columbia Rivers. In addition to general diet information, data were used to describe the level of predation on endangered salmonid species (esp. cutthroat trout) by these seals.
Use Limitations	accessLevel: Public Distribution liability: NOAA and NCEI make no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. NOAA and NCEI cannot assume liability for any damages caused by any errors or omissions in these data. If appropriate, NCEI can only certify that the data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives.

Dataset Citation	Cite as: Orr, Anthony J.; Laake, Jeffrey L.; Banks, Adria S.; Dhruv, Mark I.; Huber, Harriet R.; Browne, Patience; DeLong, Robert L.; Mellman, Steven; Brown, Robin F. (2016). Laboratory analysis of diet of Pacific harbor seals at Umpqua River, Oregon and Columbia River, Oregon/Washington conducted from 1994-06-23 to 2005-09-03 (NCEI Accession 0139413). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/0139413. Accessed [date].
Cited Authors	Orr, Anthony J. NOAA National Marine Mammal Laboratory Laake, Jeffrey L. NOAA National Marine Mammal Laboratory Banks, Adria S. NOAA National Marine Mammal Laboratory Dhruv, Mark I. NOAA National Marine Mammal Laboratory Huber, Harriet R. NOAA National Marine Mammal Laboratory Browne, Patience NOAA National Marine Mammal Laboratory DeLong, Robert L. NOAA National Marine Mammal Laboratory Mellman, Steven NOAA National Marine Mammal Laboratory Brown, Robin F. Oregon Department of Fish and Wildlife
Contributors	US DOC; NOAA; NMFS; Alaska Fisheries Science Center; Marine Mammal Laboratory (NMFS/AFSC/MML)
Resource Providers	Anthony J. Orr US DOC; NOAA; NMFS; Alaska Fisheries Science Center; Marine Mammal Laboratory (NMFS/AFSC/MML) US DOC; NOAA; NMFS; Alaska Fisheries Science Center; Marine Mammal Laboratory (NMFS/AFSC/MML)
Points of Contact	Anthony J. Orr US DOC; NOAA; NMFS; Alaska Fisheries Science Center; Marine Mammal Laboratory (NMFS/AFSC/MML) Harriet Huber US DOC; NOAA; NMFS; Alaska Fisheries Science Center; Marine Mammal Laboratory (NMFS/AFSC/MML)
Publishers	NOAA National Centers for Environmental Information

Theme keywords	NODC DATA TYPES THESAURUS biological data OTOLITH SPECIES IDENTIFICATION NODC OBSERVATION TYPES THESAURUS biological laboratory analyses WMO_CategoryCode oceanography Global Change Master Directory (GCMD) Science Keywords EARTH SCIENCE > BIOLOGICAL CLASSIFICATION
Data Center keywords	NODC COLLECTING INSTITUTION NAMES THESAURUS US DOC; NOAA; NMFS; Alaska Fisheries Science Center; Marine Mammal Laboratory NODC SUBMITTING INSTITUTION NAMES THESAURUS US DOC; NOAA; NMFS; Alaska Fisheries Science Center; Marine Mammal Laboratory Global Change Master Directory (GCMD) Data Center Keywords DOC/NOAA/NMFS/AFSC/MML > Marine Mammal Laboratory, Alaska Fisheries Science Center, National Marine Fisheries Service, NOAA, U.S. Department of Commerce
Instrument keywords	NODC INSTRUMENT TYPES THESAURUS microscope Global Change Master Directory (GCMD) Instrument Keywords MICROSCOPES > MICROSCOPES
Place keywords	NODC SEA AREA NAMES THESAURUS North Pacific Ocean Global Change Master Directory (GCMD) Location Keywords OCEAN > PACIFIC OCEAN > NORTH PACIFIC OCEAN
Project keywords	Send2NCEI Submission Package ID YEBMXU
Keywords	NCEI ACCESSION NUMBER 0139413

Use Constraints	Cite as: Orr, Anthony J.; Laake, Jeffrey L.; Banks, Adria S.; Dhruv, Mark I.; Huber, Harriet R.; Browne, Patience; DeLong, Robert L.; Mellman, Steven; Brown, Robin F. (2016). Laboratory analysis of diet of Pacific harbor seals at Umpqua River, Oregon and Columbia River, Oregon/Washington conducted from 1994-06-23 to 2005-09-03 (NCEI Accession 0139413). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/0139413. Accessed [date].
Access Constraints	Use liability: NOAA and NCEI cannot provide any warranty as to the accuracy, reliability, or completeness of furnished data. Users assume responsibility to determine the usability of these data. The user is responsible for the results of any application of this data for other than its intended purpose.
Fees	In most cases, electronic downloads of the data are free. However, fees may apply for custom orders, data certifications, copies of analog materials, and data distribution on physical media.

Lineage information for: dataset
Processing Steps	2016-01-07T13:25:07Z - NCEI Accession 0139413 v1.1 was published.
Output Datasets	NCEI Accession 0139413 v1.1 NCEI Accession 0139413 v1.1 (download) published 2016-01-07T13:25:07Z

Lineage information for: dataset
Processing Steps	Data Type: OTOLITH (measured); Units: millimeter; Observation Type: laboratory analysis; Sampling Instrument: ocular micrometer; Sampling and Analyzing Method: Fecal samples were collected at Pacific harbor sea haulout sites at Desdemona sand spit on the Columbia river and at the Umpqua River, Oregon, and placed in Whirl-Pak bags. Fecal samples were cleaned using nested sieves or a washing machine set on gentle cycle (Orr et al. 2003). Prey hard parts were separated from waste material and subsequently identified to the lowest taxon possible using a microscope, prey reference collection, and prey identification keys. Sizes of prey were determined from measurements of fish otoliths and cephalopod beaks. Sizes were measured using calipers or ocular micrometer. Measurements were used to estimate prey size from published regression equations. Data were entered into a database. Data analyses were performed to address research questions about Pacific harbor seal diet. More detailed methods are provided in Browne et al. 2002, Laake et al. 2002, Orr et al. 2004; Data Quality Information: Identifications and size measurements of prey were double checked before transcription. Difficult prey identifications were verified by an expert. Data entered into database were cross-checked with transcribed data (exact information for each field, number of entries).

Lineage information for: dataset

Processing Steps

Data Type: OTOLITH (measured); Units: millimeter; Observation Type: laboratory analysis; Sampling Instrument: ocular micrometer; Sampling and Analyzing Method: Fecal samples were collected at Pacific harbor sea haulout sites at Desdemona sand spit on the Columbia river and at the Umpqua River, Oregon, and placed in Whirl-Pak bags. Fecal samples were cleaned using nested sieves or a washing machine set on gentle cycle (Orr et al. 2003). Prey hard parts were separated from waste material and subsequently identified to the lowest taxon possible using a microscope, prey reference collection, and prey identification keys. Sizes of prey were determined from measurements of fish otoliths and cephalopod beaks. Sizes were measured using calipers or ocular micrometer. Measurements were used to estimate prey size from published regression equations. Data were entered into a database. Data analyses were performed to address research questions about Pacific harbor seal diet. More detailed methods are provided in Browne et al. 2002, Laake et al. 2002, Orr et al. 2004; Data Quality Information: Identifications and size measurements of prey were double checked before transcription. Difficult prey identifications were verified by an expert. Data entered into database were cross-checked with transcribed data (exact information for each field, number of entries).

Acquisition Information (collection)
Instrument	microscope

Last Modified: 2024-09-09T20:23:28Z
For questions about the information on this page, please email: ncei.info@noaa.gov

Laboratory analysis of diet of Pacific harbor seals at Umpqua River, Oregon and Columbia River, Oregon/Washington conducted from 1994-06-23 to 2005-09-03 (NCEI Accession 0139413)

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