Carey_WEBSEC72_TrawlData_Counts

Metadata:

• Identification_Information
• Spatial_Data_Organization_Information
• Spatial_Reference_Information
• Entity_and_Attribute_Information
• Metadata_Reference_Information
• Distribution_Information

Identification_Information:

Citation:

Citation_Information:

Originator:

Bodil Bluhm, University of Alaska (Fairbanks), Research Associate Professor

Title: Carey_WEBSEC72_TrawlData_Counts

Geospatial_Data_Presentation_Form: vector digital data

Online_Linkage: pacmars.eol.ucar.edu

Description:

Purpose:

This data set represents the results of a data rescue effort focused on epibenthic invertebrates and fishes sampled by trawls by Dr. Andrew Carey, long retired from Oregon State University, in the Alaskan Beaufort Sea during the Western Beaufort Sea Ecological (WEBSEC) cruise in 1972. Megaepifauna and fish were collected with a 3.7 m semi-balloon shrimp trawl equipped with a 1.3 cm stretch mesh inner liner during the WEBSEC-72 cruise to the US Beaufort Sea in August 1972. Twenty-two hauls were successfully retrieved at depths ranging from 27 to 721 m depth. Trawl duration ranged from 5-30 min at the bottom, but durations or area covered were not specified in the documentation available, and absolute abundances per unit area could therefore not be calculated. Counts were reported for all taxa in the haul with zeros indicating presence of colonial taxa. It is unclear why additional taxa were included with zeroes, but it seems as if zeroes were assigned to some infaunal taxa that occurred but were not caught quantitatively. It is also unclear if the reported counts were derived from the entire haul or from a subsample. The available documentation contained data on ‘Container volume’ in gallons and hand-written notes that rough sorting was conducted from Dec 1972-Aug 1973. The data were entered into a benthic data base at Oregon State University and some limited information derived from 35 taxa within the data set was published in Carey AG Jr, Ruff RE, Castillo JG, Dickinson JJ (1974) Benthic ecology of the western Beaufort Sea continental margin: preliminary results, In Reed JC, Sater JE (eds) The coast and shelf of the Beaufort Sea, Proceedings of a symposium on Beaufort Sea Coast and Shelf Research, Arctic Institute of North America. Species distribution maps of some taxa were published in the Environmental Assessment of the Alaskan Continental Shelf, Annual Report of Principal Investigators for the year ending March 1977, Vol VI, Receptors – Fish, Littoral, Benthos. Dr. Carey transferred printouts of the trawl data (along with data from Van Veen grabs) to Susan Schonberg at the Institute of Marine Science at the University of Texas Austin (Port Aransas) in the early 2000s, who later sent scans of those to Dr. Bodil Bluhm at the School of Fisheries and Ocean Sciences at the University of Alaska Fairbanks in 2013. Dr. Carey also mailed photocopies of some notes to Bluhm in 2011. Bluhm digitized the data and updated the taxonomic names to the World Register of Marine Species (as of March 2013) under a grant by the Oil Spill Recovery Institute (OSRI contract number 11-10-14). As part of the OSRI grant, Dr. Gordon Hendler at the National History Museum of Los Angeles County, where a large part of the voucher material was archived, identified a number of lots of brittle stars. Dr. Philip Lambert from the Royal BC Museum identified holothurian lots to species level during a visit to NHMLAC. Other voucher material from Carey’s Arctic studies is archived at the Santa Barbara Museum of Natural History. Questions about the present data set should be addressed to babluhm@alaska.edu or susan.schonberg@mail.utexas.edu. Questions about the archived collections should be addressed to Hendler@nhm.org.

Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 19720804

Ending_Date: 19720822

Currentness_Reference: Unknown

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -149.563300

East_Bounding_Coordinate: -143.391667

North_Bounding_Coordinate: 71.216600

South_Bounding_Coordinate: 70.163333

Keywords:

Theme:

Theme_Keyword_Thesaurus: None

Theme_Keyword:

Arctic, Biology, Oceanography, Biosphere-Aquatic Ecosystem-Benthos, Ship, Trawl

Theme:

Theme_Keyword_Thesaurus: ISO 19115 Topic Categories

Theme_Keyword: biota

Access_Constraints: None

Use_Constraints: None

Point_of_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Susan Schonberg

Contact_Electronic_Mail_Address: susan.schonberg@mail.utexas.edu

Point_of_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Gordon Hendler

Contact_Electronic_Mail_Address: Hendler@nhm.org

Contact_Instructions: Contact for questions about the archived collections

Native_Data_Set_Environment:

Microsoft Windows 7 Version 6.1 (Build 7601) Service Pack 1; ESRI ArcGIS 10.0.5.4400

Spatial_Data_Organization_Information:

Direct_Spatial_Reference_Method: Vector

Point_and_Vector_Object_Information:

SDTS_Terms_Description:

SDTS_Point_and_Vector_Object_Type: Entity point

Point_and_Vector_Object_Count: 1092

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Geographic:

Latitude_Resolution: 8.9831528411952133e-009

Longitude_Resolution: 8.9831528411952133e-009

Geographic_Coordinate_Units: Decimal Degrees

Geodetic_Model:

Horizontal_Datum_Name: D North American 1983

Ellipsoid_Name: GRS 1980

Semi-major_Axis: 6378137.0

Denominator_of_Flattening_Ratio: 298.257222101

Entity_and_Attribute_Information:

Detailed_Description:

Entity_Type:

Entity_Type_Label: Carey72_Trawls_Bluhm

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: Shape

Attribute_Definition: Feature geometry.

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Unrepresentable_Domain: Coordinates defining the features.

Attribute:

Attribute_Label: CruiseID

Attribute:

Attribute_Label: StationNum

Attribute:

Attribute_Label: StationNme

Attribute:

Attribute_Label: DataDate

Attribute:

Attribute_Label: DataYear

Attribute:

Attribute_Label: DataTime

Attribute:

Attribute_Label: TimeZone

Attribute:

Attribute_Label: UTCOffset

Attribute:

Attribute_Label: Latitude

Attribute:

Attribute_Label: Longitude

Attribute:

Attribute_Label: Depth

Attribute:

Attribute_Label: TaxonOrigi

Attribute_Definition: TaxonOriginal

Attribute:

Attribute_Label: TaxonWoRMS

Attribute_Definition:

Accepted name by the World Register of Marine Species (marinespecies.org)

Attribute:

Attribute_Label: RawCount

Attribute:

Attribute_Label: Gear

Attribute:

Attribute_Label: Mesh_mm

Attribute:

Attribute_Label: Trawl_time

Attribute:

Attribute_Label: AreaTrawle

Attribute:

Attribute_Label: VolSorted

Attribute:

Attribute_Label: Vessel

Attribute:

Attribute_Label: PrincipInv

Attribute:

Attribute_Label: Institutn

Metadata_Reference_Information:

Metadata_Date: 20130430

Metadata_Standard_Name: FGDC Content Standard for Digital Geospatial Metadata

Metadata_Standard_Version: FGDC-STD-001-1998

Metadata_Time_Convention: local time

Distribution_Information:

Distributor:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: National Center for Atmospheric Research

Contact_Person: Earth Observing Laboratory

Contact_Address:

Address_Type: mailing and physical

Address: 3450 Mitchell Lane

City: Boulder

State_or_Province: CO

Postal_Code: 80301

Country: USA

Contact_Voice_Telephone: 303-497-8154

Contact_Electronic_Mail_Address: codiac@ucar.edu

Contact_Electronic_Mail_Address: stott@ucar.edu