---TITLE: WEBSEC-72 Trawl Data


---AUTHOR(S): 
-  Bodil A. Bluhm
   Institute of Marine Science
   230 Irving II
   P.O. Box 757220
   University of Alaska Fairbanks
   Fairbanks, AK 99775-7220
   Phone: (907) 474-6332
   Email: babluhm@alaska.edu

-  Andrew G. Carey Jr.
   Oregon State University

-  Susan Schonberg
   Institute of Marine Science
   University of Texas Austin
   Email: susan.schonberg@mail.utexas.edu
  
-  Gordon Hendler
   National History Museum of Los Angeles County
   Email: Hendler@nhm.org
   
-  Philip Lambert
   Royal B. C. Museum

Questions about the present data set should be addressed to Bodil Bluhm or Susan Schonberg. 
Questions about the archived collections should be addressed to Gorden Hendler.


---FUNDING SOURCE AND GRANT NUMBER:
   NSF GA-366679
   OSRI 11-10-14


---DATA SET OVERVIEW: 
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 during the WEBSEC-72 cruise to the US Beaufort Sea in August 
1972. 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:
	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 (see Funding Source and Grant Number 
section for contract number). 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.


---INSTRUMENT DESCRIPTION: 
Megaepifauna and fish were collected with a 3.7 m semi-balloon shrimp trawl 
equipped with a 1.3 cm stretch mesh inner liner.


---DATA COLLECTION and PROCESSING: 
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.


---DATA FORMAT: 
Data are in Excel spreadsheet format.

Parameters include:
	CruiseID (Cruise ID)
	StationNum (Station Number)
	StationNme (Station Name)
	DataDate (Date of Data Collection) - YYYYMMDD
	DataYear (Year of Data Collection) - YYYY
	DataTime (Time of Data Collection)
	TimeZone (Time Zone of DataDate) - AKST (Alaska Standard Time)
	UTCOffset (UTC Offset) - -9:00 UTC
	Latitude - DD.DD
	Longitude - -DDD.DD
	Depth(m) - meters
	TaxonOrigi (Original Taxonomy)
	TaxonWoRMS (World Register of Marine Species Taxonomy)
	RawCount (Raw Count)
	Gear
	Mesh_mm (Mesh) - milimeters
	Trawl_time (Trawl Time) - minutes
	AreaTrawled (Area Trawled) - unknown		
	VolSorted (Volume Sorted) - gallons
	Vessel - USCGC Glacier
	PrincipInv (Principal Investigator) - Andrew Carey
	Institution - Oregon State University

Attribute TaxonOrigi stands for TaxonOriginal, i.e. as mentioned in the source. 
TaxonWoRMS is updated for the currently accepted name by the World Register of 
Marine Species at marinespecies.org.


---DATA REMARKS: 
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.


---REFERENCES: 
-  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.
-  Environmental Assessment of the Alaskan Continental Shelf, Annual Report of 
   Principal Investigators for the year ending March 1977, Vol VI, Receptors - 
   Fish, Littoral, Benthos.