Pohnpei Island and And Atoll Seagrass Meadows

Metadata:

• Identification_Information
• Data_Quality_Information
• Spatial_Data_Organization_Information
• Entity_and_Attribute_Information
• Distribution_Information
• Metadata_Reference_Information

Identification_Information:

Citation:

Citation_Information:

Publication_Date: 20060801

Title: Pohnpei Island and And Atoll Seagrass Meadows

Geospatial_Data_Presentation_Form: vector digital data

Online_Linkage: <http://www.islands.fm/atlas/#/pohnpei-state>

Description:

Abstract:

This dataset shows the extent and basic types of sea grass areas around Pohnpei. It classifies sea grass areas by one of the three main species (Cymodocea rotundata, Thalassia hemprichii, and Enhalus acaroides) and the level of coverage (describes as continuous, aggregated, and isolated). The data source is McKenzie, L.J. and Rasheed, M.J. (2006), Seagrasses: Pohnpei Island and And Atoll Marine Assessment, Technical report of survey conducted 26 October – 3 November 2005, Seagrass‐Watch HQ, DPI&F, Cairns, 60pp.

Purpose:

To show the extent and basic types of seagrass areas around Pohnpei Island and And Atoll.

Supplemental_Information:

The dataset is included the Digital Atlas of Micronesia, module Pohnpei, by Island Research & Education Initiative (iREi), in collaboration with Water and Environmental Research Institute of the Western Pacific (WERI) University of Guam and partial funding from United States Geological Survey (USGS), under WRRI 104-B Program, project # 2016GU302B.

Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 20051001

Ending_Date: 20060831

Currentness_Reference: Project date

Status:

Progress: Complete

Maintenance_and_Update_Frequency: As needed

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: 157.929420

East_Bounding_Coordinate: 158.366176

North_Bounding_Coordinate: 7.013738

South_Bounding_Coordinate: 6.725380

Keywords:

Theme:

Theme_Keyword_Thesaurus: None

Theme_Keyword: seagrass

Theme_Keyword: micronesia

Theme_Keyword: MPA

Place:

Place_Keyword_Thesaurus: None

Place_Keyword: Pohnpei

Place_Keyword: And Atoll

Place_Keyword: Federated States of Micronesia (FSM)

Place_Keyword: U.S. Affiliated Pacific Islands (USAPI)

Place_Keyword: Caroline Islands

Place_Keyword: Micronesia

Place_Keyword: Northwestern Pacific

Place_Keyword: Pacific Ocean

Access_Constraints: None

Use_Constraints:

Always quote above citation when using data & completion of Digital Data Agreement!

Point_of_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: Seagrass-Watch HQ

Contact_Person: Len McKenzie

Contact_Position: Principal Researcher

Contact_Address:

Address_Type: physical

Address: c/o Sir Robert Norman Building (E2.203K)

Address: James Cook University, Cairns Campus

Address: 14‐88 McGregor Road

City: Smithfield

State_or_Province: QLD

Postal_Code: 4878

Country: AU

Contact_Voice_Telephone: (+61) 7 4232 2012

Contact_Electronic_Mail_Address: Len.McKenzie@jcu.edu.au

Contact_Electronic_Mail_Address: hq@seagrasswatch.org

Contact_Instructions:

Mail Address: PO Box 6811 Cairns, Qld 4870 Australia

Data_Set_Credit:

McKenzie, Len J; Rasheed, Michael J (2006): Seagrass meadows of Pohnpei and And Atoll, Federated States of Micronesia, derived from field surveys conducted 26 October-03 November, 2005. Dataset #875721 (DOI registration in progress)

Native_Data_Set_Environment: Version 6.2 (Build 9200) ; Esri ArcGIS 10.2.2.3552

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report:

Information finalised Contains pecentage cover of seagrass in a 50cmx50cm quadrat. Information finalized. Codes for seagrass species names are: EA = Enhalus acoroides, CR = Cymodocea rotundata, TH = Thalassia hemprichii updated. Meadow habitat and community types are listed in the source publication. Information finalized.

Logical_Consistency_Report: Attributes are standardised

Completeness_Report:

All meadows examined between 26 October – 03 November 2005 are epresented. Seagrass distribution and abundance can change seasonally and between years, and users should ensure that they make appropriate enquires to determine whether new information is available on the particular subject matter.

Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report:

A Global Positioning System (GPS) was used to accurately determine geographic location of field validation points (5 m). Meadow boundary accuracy varied from 5m to 15m depending on field validation point density and ability to differentiate substrate on the basis of colour, texture, and the geomorphic and geographical context from remotely sensed data.

Lineage:

Process_Step:

Process_Description:

Formatted attribute table and added metadata. Note: original metadata file provided by author in PDF format with Metadata Date: 15.06.2005 (updated 23.11.2016).

Process_Date: 20170323

Process_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: Maria Kottermair

Contact_Position: GIS Specialist

Contact_Electronic_Mail_Address: mariakottermair@triton.uog.edu

Spatial_Data_Organization_Information:

Direct_Spatial_Reference_Method: Vector

Point_and_Vector_Object_Information:

SDTS_Terms_Description:

SDTS_Point_and_Vector_Object_Type: Complete chain

Point_and_Vector_Object_Count: 260

Entity_and_Attribute_Information:

Detailed_Description:

Entity_Type:

Entity_Type_Label: Pohnpei_seagrass_2005

Attribute:

Attribute_Label: Shape

Attribute_Definition: Feature geometry.

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Unrepresentable_Domain: Coordinates defining the features.

Attribute:

Attribute_Label: FID

Attribute_Definition: Internal feature number.

Attribute_Definition_Source: Esri

Attribute_Domain_Values:

Unrepresentable_Domain:

Sequential unique whole numbers that are automatically generated.

Attribute:

Attribute_Label: COVER_CAT

Attribute_Definition:

mean percentage (%) of the substrate covered by seagrass (all species pooled) +/‐ standard error (range)

Attribute:

Attribute_Label: MDW_CAT

Attribute_Definition:

seagrass meadow landscape (e.g. patchiness) description: Isolated seagrass patches = majority of area within the meadow consists of unvegetated sediment interspersed with isolated patches of seagrass; Aggregated seagrass patches = meadow comprised of numerous seagrass patches but still features substantial gaps of unvegetated sediment within the meadow boundaries; Continuous seagrass cover = majority of area within the meadow comprised of continuous seagrass cover interspersed with a few gaps of unvegetated sediment.

Attribute:

Attribute_Label: SPECIES

Attribute_Definition:

Description of meadow based on seagrass species present. Nomenclature used: Species A = Species A is 100% of composition; Species A with Species B = Species A is 60% of composition; Species A with Species B/Species C = Species A is 50% of composition; Species A/Species B = Species A is 50% ‐ 60% of composition. Species are: Cymodocea rotundata (straplike, smooth rounded leaf tip, continuous leaf scars around stem (www.seagrasswatch.org/id_seagrass.html#IDCR1)); Enhalus acoroides (strap‐like leaves >30 cm long and >1 cm wide, with in‐rolled edges, thick rhizome with long black bristles and cord‐like roots (www.seagrasswatch.org/id_seagrass.html#IDEA1)); and Thalassia hemprichii (hooked/curved strap‐like leaf, with red flecks and rounded, slightly serrated tip (www.seagrasswatch.org/id_seagrass.html#IDTH1)).

Attribute:

Attribute_Label: HECTARES

Attribute_Definition: meadow area in hectares

Attribute:

Attribute_Label: X_COORD

Attribute_Definition: easting (meters)

Attribute:

Attribute_Label: Y_COORD

Attribute_Definition: northing (meters)

Attribute:

Attribute_Label: MDW_ID

Attribute_Definition: unique meadow ID

Attribute_Definition_Source: Author

Attribute:

Attribute_Label: Area_m2

Attribute_Definition: meadow area in square meters

Attribute:

Attribute_Label: Area_ha

Attribute_Definition: meadow area in hectares

Attribute:

Attribute_Label: Area_ac

Attribute_Definition: meadow area in acres

Attribute:

Attribute_Label: Area_mi2

Attribute_Definition: meadow area in square miles

Attribute:

Attribute_Label: Source

Overview_Description:

Entity_and_Attribute_Overview:

Meadow boundary primarily mapped in the field by observers assessing 508 field validation points. Seagrass meadow boundaries based on the positions of survey points and the presence of seagrass, coupled with depth contours and remote sensing (e.g. aerial photography) where available. Polygons of discrete seagrass meadow boundaries created using the on‐screen digitising functions of ArcGIS (ESRI Inc.). Each column header title includes the following data:

Entity_and_Attribute_Detail_Citation:

From metadata file "Pohnpei_seagrass_2005_metadata.pdf" provided by the author. Note that DATE (date meadow examined) was not included in the attribute table of the shapefile received.

Distribution_Information:

Distributor:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: Island Research & Education Initiative (iREi)

Contact_Address:

Address_Type: mailing

Address: P.O. Box PS 303

City: Palikir

State_or_Province: Pohnpei

Postal_Code: 96941

Country: FM

Contact_Voice_Telephone: 691.320.5212

Contact_Electronic_Mail_Address: irei@islandresearch.org

Distribution_Liability: See access and use constraints information.

Metadata_Reference_Information:

Metadata_Date: 20170715

Metadata_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization:

Seagrass-Watch HQ/Department Primary Industries & Fisheries Center

Contact_Person: Len McKenzie

Contact_Address:

Address_Type: mailing

Address: PO Box 5396

City: Cairns

State_or_Province: QLD

Postal_Code: 4870

Country: AU

Contact_Voice_Telephone: +61 7 4035 0131

Contact_Facsimile_Telephone: +61 7 4035 4664

Contact_Electronic_Mail_Address: Len.McKenzie@dpi.qld.gov.au

Metadata_Standard_Name: FGDC Content Standard for Digital Geospatial Metadata

Metadata_Standard_Version: FGDC-STD-001-1998

Metadata_Time_Convention: local time