Sampling Data for Eelgrass (Zostera marina) in Norma Bay, Izembek Lagoon, Alaska, 1987

Identification_Information:

Citation:

Citation_Information:

Originator: Ward, David H. (ORCID: 0000-0002-5242-2526)
Publication_Date: 20221114
Title:

Geospatial_Data_Presentation_Form: tabular digital data
Publication_Information:

Publication_Place: Anchorage, Alaska
Publisher: U.S. Geological Survey, Alaska Science Center

Other_Citation_Details:

Suggested Citation: Ward, D.H., 2022, Sampling data for eelgrass (Zostera marina) in Norma Bay, Izembek Lagoon, Alaska, 1987: U.S. Geological Survey data release, https://doi.org/10.5066/P9XNSWES

Online_Linkage: https://doi.org/10.5066/P9XNSWES
Larger_Work_Citation:

Citation_Information:

Originator: U.S. Geological Survey, Alaska Science Center
Publication_Date: 2009
Title: Population Ecology of Waterfowl and Loons
Geospatial_Data_Presentation_Form: website
Series_Information:

Series_Name: Alaska Science Portal
Issue_Identification: 377

Publication_Information:

Publication_Place: Anchorage, Alaska
Publisher: U.S. Geological Survey, Alaska Science Center

Other_Citation_Details:

This is a link to the broader USGS Alaska Science Center research project supported by these data. Users will find a description of the research project and links to associated reports, publications, and data products.

Online_Linkage: https://alaska.usgs.gov/portal/project.php?project_id=377

Description:

Abstract:

These data are related to surveys of eelgrass beds in Norma Bay, Izembek Lagoon, Alaska. The table provides eelgrass shoot lengths and density measurements from sampling in September 1987.

Purpose:

Coastal waters within Izembek Lagoon contain extensive beds of eelgrass, but the status and trends of this seagrass are unknown. These data were collected to provide baseline knowledge of eelgrass (Zostera marina) abundance and distribution, but also to classify and map the spatial extent of eelgrass in the Norma Bay region.

Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 1987
Ending_Date: 1987

Currentness_Reference: observed

Status:

Progress: Complete
Maintenance_and_Update_Frequency: None planned

Spatial_Domain:

Description_of_Geographic_Extent: Norma Bay, Izembek Lagoon, Alaska
Bounding_Coordinates:

West_Bounding_Coordinate: -163.107
East_Bounding_Coordinate: -162.934
North_Bounding_Coordinate: 55.232
South_Bounding_Coordinate: 55.150

Keywords:

Theme:

Theme_Keyword_Thesaurus: USGS Metadata Identifier
Theme_Keyword: USGS:ASC498

Theme:

Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: Biota
Theme_Keyword: Environment

Theme:

Theme_Keyword_Thesaurus: NASA GCMD Earth Science Thesaurus
Theme_Keyword: Angiosperms (flowering plants)
Theme_Keyword: Monocots
Theme_Keyword: Seagrass
Theme_Keyword: Macroalgae (seaweeds)
Theme_Keyword: Animals/Invertebrates
Theme_Keyword: Marine environment monitoring

Theme:

Theme_Keyword_Thesaurus: USGS CSA Biocomplexity Thesaurus
Theme_Keyword: Marine ecosystems
Theme_Keyword: Coastal ecosystems
Theme_Keyword: Estuarine ecosystems
Theme_Keyword: Seagrass beds
Theme_Keyword: Standing crop
Theme_Keyword: Biomass

Theme:

Theme_Keyword_Thesaurus: USGS Thesaurus
Theme_Keyword: Field inventory and monitoring
Theme_Keyword: Animal and plant census
Theme_Keyword: Relative abundance analysis
Theme_Keyword: Biological productivity

Theme:

Theme_Keyword_Thesaurus: None
Theme_Keyword: Eelgrass
Theme_Keyword: Zostera marina

Place:

Place_Keyword_Thesaurus: USGS Geographic Names Information System (GNIS)
Place_Keyword: Alaska
Place_Keyword: Alaska Peninsula
Place_Keyword: Izembek Lagoon
Place_Keyword: Norma Bay

Taxonomy:

Keywords/Taxon:

Taxonomic_Keyword_Thesaurus: None
Taxonomic_Keywords: Zostera marina

Taxonomic_System:

Classification_System/Authority:

Classification_System_Citation:

Citation_Information:

Originator: ITIS Integrated Taxonomic Information System
Publication_Date: Unknown
Title: ITIS Integrated Taxonomic Information System
Geospatial_Data_Presentation_Form: online database
Publication_Information:

Publication_Place: online
Publisher: ITIS-North America

Other_Citation_Details:

Taxonomic details retrieved October 27, 2022, from the Integrated Taxonomic Information System online database https://www.itis.gov

Online_Linkage: https://www.itis.gov

Classification_System/Authority:

Classification_System_Citation:

Citation_Information:

Originator: AlgaeBase
Publication_Date: 1996
Title: AlgaeBase
Geospatial_Data_Presentation_Form: database
Publication_Information:

Publication_Place: online
Publisher:

World-wide electronic publication, National University of Ireland, Galway

Other_Citation_Details:

Taxonomic details for seaweed species were retrieved October 27, 2022, from AlgaeBase online database http://www.algaebase.org

Online_Linkage: http://www.algaebase.org

Taxonomic_Procedures:

Plant species were identified by trained observers in the field using physical characteristics.

Taxonomic_Completeness:

Provided here is the classification of eelgrass to the rank of species. Taxonomic details (including scientific names) of seaweed species are provided in the Table 4 of the associated USGS Open File Report (Ward 2021).

Taxonomic_Classification:

Taxon_Rank_Name: Kingdom
Taxon_Rank_Value: Plantae
Taxonomic_Classification:

Taxon_Rank_Name: Subkingdom
Taxon_Rank_Value: Viridiplantae
Taxonomic_Classification:

Taxon_Rank_Name: Infrakingdom
Taxon_Rank_Value: Streptophyta
Taxonomic_Classification:

Taxon_Rank_Name: Superdivision
Taxon_Rank_Value: Embryophyta
Taxonomic_Classification:

Taxon_Rank_Name: Division
Taxon_Rank_Value: Tracheophyta
Taxonomic_Classification:

Taxon_Rank_Name: Subdivision
Taxon_Rank_Value: Spermatophytina
Taxonomic_Classification:

Taxon_Rank_Name: Class
Taxon_Rank_Value: Magnoliopsida
Taxonomic_Classification:

Taxon_Rank_Name: Superorder
Taxon_Rank_Value: Lilianae
Taxonomic_Classification:

Taxon_Rank_Name: Order
Taxon_Rank_Value: Alismatales
Taxonomic_Classification:

Taxon_Rank_Name: Family
Taxon_Rank_Value: Zosteraceae
Taxonomic_Classification:

Taxon_Rank_Name: Genus
Taxon_Rank_Value: Zostera
Taxonomic_Classification:

Taxon_Rank_Name: Species
Taxon_Rank_Value: Zostera marina
Applicable_Common_Name: TSN: 39074

Access_Constraints: None
Use_Constraints:

It is requested that the authors and the USGS Alaska Science Center be cited for any subsequent publications that reference this dataset.

Point_of_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U.S. Geological Survey, Alaska Science Center

Contact_Address:

Address_Type: Mailing and Physical
Address: 4210 University Drive
City: Anchorage
State_or_Province: Alaska
Postal_Code: 99508
Country: USA

Contact_Voice_Telephone: 907-786-7000
Contact_Electronic_Mail_Address: ascweb@usgs.gov

Cross_Reference:

Citation_Information:

Originator: Ward, D.H.
Originator: Hogrefe, K.R.
Originator: Donnelly, T.F.
Originator: Fairchild, L.L.
Originator: Sowl, K.M.
Originator: Lindstrom, S.C.
Publication_Date: 2022
Title:

Abundance and Distribution of Eelgrass (Zostera marina) and Seaweeds at Izembek National Wildlife Refuge, Alaska, 2007–2010

Geospatial_Data_Presentation_Form: publication
Series_Information:

Series_Name: U.S. Geological Survey Open-File Report
Issue_Identification: 2020–1035

Publication_Information:

Publication_Place: online
Publisher: U.S. Geological Survey

Other_Citation_Details:

Ward, D.H., Hogrefe, K.R., Donnelly,T.F., Fairchild, L.L., Sowl, K.M., Lindstrom, S.C., 2022, Abundance and distribution of eelgrass (Zostera marina) and seaweeds at Izembek National Wildlife Refuge, Alaska, 2007–2010: U.S. Geological Survey Open-File Report 2020–1035, 30 p., https://doi.org/10.3133/ofr20201035

Online_Linkage: https://doi.org/10.3133/ofr20201035

Cross_Reference:

Citation_Information:

Originator: Ward, D.H.
Originator: Hogrefe, K.R.
Publication_Date: 2022
Title:

Mapping Data of Eelgrass (Zostera marina) Distribution, Alaska and Baja California, Mexico

Geospatial_Data_Presentation_Form: tabular and geospatial data
Series_Information:

Series_Name: U.S. Geological Survey Data Release
Issue_Identification: DOI: 10.5066/P9WEK4JI

Publication_Information:

Publication_Place: online
Publisher: U.S. Geological Survey

Other_Citation_Details:

Ward, D.H., Hogrefe, K.R. 2022. Mapping data of eelgrass (Zostera marina) distribution, Alaska and Baja California, Mexico: U.S. Geological Survey data release, https://doi.org/10.5066/P9WEK4JI

Online_Linkage: https://doi.org/10.5066/P9WEK4JI

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report:

Individual sample IDs, collection dates, sampling locations, density values, and measurements were cross-checked and verified with field worksheets.

Logical_Consistency_Report:

Attribute values fall within expected ranges and data were proofed for the presence of duplication and omission.

Completeness_Report:

No data were omitted. Blank cells indicate that data were not collected or not provided (see Attribute Definitions for details).

Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report:

Positions determined by hand held GPS; accuracy estimated to be within 3 m.

Lineage:

Methodology:

Methodology_Type: Field
Methodology_Description:

Transect Sampling: Eelgrass were sampled every 100 m along 7 transects in September 1987. The first transect (B) was oriented to the west at 270 degrees. Other transects (C, D, F, H, I, and J) were situated 20 degrees off from this initial transect (e.g., the next transect occurred at 290 degrees; see "eelgrass_transectMap_normaBay_ward.pdf" for a visual representation of transect locations). Sampling along transect (C) was cut short because of timing and this transect only has 2 samplings. The start of each transect occurred at the base of the Norma Bay Blind at the shoreline edge of the eelgrass bed. The first sample along each of the transect lines occurred at 104 m on transect B, 100 m on transect C, 178 m on transect D, 186 m on transect F, 156 m on transect H, 131 m on transect I, and 172 m on transect J. Subsequent sampling points occurred every 100 m. At each point, eelgrass was harvested from an 18 cm diameter core. A smaller core was used on Transect C, I, and J. Eelgrass shoot density was determined and the length and width of 15 represented shoots were measured (i.e., leaves from meristem and sheath from first node to meristem).

Process_Step:

Process_Description: Field data sheets were transcribed into a digital spreadsheet.
Process_Date: Unknown

Spatial_Data_Organization_Information:

Indirect_Spatial_Reference:

Bay names are the proper and common local geographic place names of sampling areas and do not describe precise geographic points.

Direct_Spatial_Reference_Method: Point

Entity_and_Attribute_Information:

Detailed_Description:

Entity_Type:

Entity_Type_Label: eelgrass_shootLengthDensity_normaBay_ward.csv
Entity_Type_Definition:

Table of eelgrass shoot lengths and density samples from transects within Norma Bay, Izembek Lagoon, 1987. Presented in a Comma Separated Value (CSV) formatted table. Additionally, the Alaska Science Center has sampling data in their original paper format that are available upon request in PDF format.

Entity_Type_Definition_Source: Author defined

Attribute:

Attribute_Label: No
Attribute_Definition: A unique record number corresponding to the sample.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Unrepresentable_Domain: Unique identifier of each sample.

Attribute:

Attribute_Label: Date
Attribute_Definition: Date range of when the eelgrass sample was recorded.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Unrepresentable_Domain:

Date range of when the eelgrass sample was recorded; September 13-15, 1987 (YYYY-MM-DD).

Attribute:

Attribute_Label: StudyArea
Attribute_Definition: Study area of eelgrass sampling.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: NB
Enumerated_Domain_Value_Definition:

Norma Bay, Izembek Lagoon, Alaska (approximately 55.19 N, 163.04 W)

Enumerated_Domain_Value_Definition_Source: USGS Geographic Names Information System

Attribute:

Attribute_Label: TransectLine
Attribute_Definition:

Transect Line. The identification letter corresponding to each transect line. See "eelgrass_transectMap_normaBay_ward.pdf" included with this data release for a map showing all transect locations.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: B
Enumerated_Domain_Value_Definition: Main transect oriented to the west at 270 degrees.
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: C
Enumerated_Domain_Value_Definition: Transect oriented 20 degrees off from transect B.
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: D
Enumerated_Domain_Value_Definition: Transect oriented 20 degrees off from transect C.
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: F
Enumerated_Domain_Value_Definition: Transect oriented 20 degrees off from transect D.
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: H
Enumerated_Domain_Value_Definition: Transect oriented 20 degrees off from transect F.
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: I
Enumerated_Domain_Value_Definition: Transect oriented 20 degrees off from transect H.
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: J
Enumerated_Domain_Value_Definition: Transect oriented 20 degrees off from transect I.
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute:

Attribute_Label: Loc
Attribute_Definition:

Identification number of the sampling location along the transect.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 1
Range_Domain_Maximum: 10
Attribute_Units_of_Measure: Count

Attribute:

Attribute_Label: Density
Attribute_Definition:

Density of eelgrass shoots within a sampled core. Blank cells indicate that the density was either not recorded or not measured.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 7
Range_Domain_Maximum: 420
Attribute_Units_of_Measure: 0.025 meters squared

Attribute:

Attribute_Label: Density_m2
Attribute_Definition:

Density of eelgrass shoots within a square meter. Blank cells indicate that the density was either not recorded or not measured.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 490
Range_Domain_Maximum: 16800
Attribute_Units_of_Measure: Square meters

Attribute:

Attribute_Label: Sheath
Attribute_Definition:

Length of eelgrass sheath as measured from the initial node to the meristem. Blank cells indicate that the sheath length was either not recorded or not measured.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.0
Range_Domain_Maximum: 33.8
Attribute_Units_of_Measure: Centimeters

Attribute:

Attribute_Label: Leaf
Attribute_Definition:

Length of longest leaf as measured from the meristem to the end of the leaf. Blank cells indicate that the leaf length was either not recorded or not measured.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 5.1
Range_Domain_Maximum: 173.8
Attribute_Units_of_Measure: Centimeters

Attribute:

Attribute_Label: OldestLeaf
Attribute_Definition:

Length of the oldest leaf as measured from the meristem to the end of the leaf. Blank cells indicate that the length of an old left was not recorded, not measured, or old leaves were broken.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 5.0
Range_Domain_Maximum: 174.6
Attribute_Units_of_Measure: Centimeters

Attribute:

Attribute_Label: Width
Attribute_Definition:

Width of the largest leaf as measured at the meristem. Blank cells indicate that the leaf width was either not recorded or not measured.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.7
Range_Domain_Maximum: 3.1
Attribute_Units_of_Measure: Millimeters

Attribute:

Attribute_Label: Comments
Attribute_Definition: Notes indicating if a location was not sampled.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Unrepresentable_Domain: Notes indicating if a location was not sampled.

Detailed_Description:

Entity_Type:

Entity_Type_Label: eelgrass_transectMap_normaBay_ward.pdf
Entity_Type_Definition:

A map showing the locations of eelgrass sampling transects in Norma Bay, Izembek Lagoon, Alaska. There are no attributes described for this entity. Presented in a Portable Document Format (PDF) formatted image.

Entity_Type_Definition_Source: Author defined

Distribution_Information:

Distributor:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U.S. Geological Survey, Alaska Science Center

Contact_Address:

Address_Type: Mailing and Physical
Address: 4210 University Drive
City: Anchorage
State_or_Province: Alaska
Postal_Code: 99508
Country: USA

Contact_Voice_Telephone: 907-786-7000
Contact_Electronic_Mail_Address: ascweb@usgs.gov

Resource_Description:

The U.S. Geological Survey, Alaska Science Center is the authoritative source and distributor of these data.

Distribution_Liability:

Unless otherwise stated, all data, metadata and related materials are considered to satisfy the quality standards relative to the purpose for which the data were collected. Although these data and associated metadata have been reviewed for accuracy and completeness and approved for release by the U.S. Geological Survey, no warranty expressed or implied is made regarding the display or utility of the data for other purposes or on all computer systems, nor shall the act of distribution constitute any such warranty. Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government.

Standard_Order_Process:

Digital_Form:

Digital_Transfer_Information:

Format_Name: CSV, PDF
Format_Information_Content:

Data are distributed in a Zip package containing data in CSV and PDF formats and FGDC metadata in XML and HTML formats.

File_Decompression_Technique:

Compression applied by the 7-Zip utility using the default compression level [5]. The Zip package can be decompressed and unpacked by open source or commercially available unzip tools.

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name: https://doi.org/10.5066/P9XNSWES

Fees: None

Sampling Data for Eelgrass (Zostera marina) in Norma Bay, Izembek Lagoon, Alaska, 1987

Metadata: