Macro and Megabenthic Communities in the High Arctic Canada Basin: Initial FindingsEntry ID: ArcOD_2005B1
Abstract: This dataset investigates the macro- and megabenthos of the Canada Basin, which is one of the biologically least known areas of the Arctic deep sea. Macro-infauna was collected with 11 box cores at six stations ranging from 640 to 3,250 m water depth. Total abundance ranged from 3 to 265 individuals 0.04 square meters (75 - 6,625 individuals per square meters) and decreased with increasing depth. ... Biomass ranged from 0.04 to 228 mg wet weight 0.04 m-2 (1-5,700 mg wet weight per square meter) and followed the same trend. Polychaetes, crustaceans and bivalves dominated the faunal densities, biomass and species numbers. A total of 90 benthic invertebrate species/taxa (including 15 identified from under-water imager), not part of this data set) from four biogeographic affinities were identified, including at least three new species of Isopoda. The evident low abundances and biomass are in agreement with findings from the Eurasian Arctic deep sea. This dataset exist in Excel format, and presents the foundation for a scientific publication by Bluhm et al (2005). This dataset has a unique catalog number of 2005B1 (should be indicated in process step).
Purpose: To assess species composition, abundance and distribution of the infauna of the Arctic Canada Basin.
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Data Set Citation
Dataset Originator/Creator: Bluhm, B.A., MacDonald IR, Debenham C, Iken K.
Dataset Title: Macro and Megabenthic Communities in the High Arctic Canada Basin: Initial Findings
Dataset Series Name: 28: 218-231
Dataset Release Date: 2004
Issue Identification: Polar Biology
Other Citation Details: Canada Basin Ocean 1 Infauna CCGC Louis S. St. Laurent 2002-23Online Resource: http://ak.aoos.org/ArcOD/data_table.php
This data set description is a member of a collection. The collection is described in
Start Date: 2002-08-13Stop Date: 2002-09-08
OCEANS > SEA ICE
BIOLOGICAL CLASSIFICATION > ANIMALS/INVERTEBRATES > BRYOZOANS/MOSS ANIMALS
BIOLOGICAL CLASSIFICATION > ANIMALS/INVERTEBRATES
BIOLOGICAL CLASSIFICATION > ANIMALS/INVERTEBRATES > ARTHROPODS
BIOLOGICAL CLASSIFICATION > ANIMALS/INVERTEBRATES > CNIDARIANS
BIOLOGICAL CLASSIFICATION > ANIMALS/INVERTEBRATES > ECHINODERMS
BIOLOGICAL CLASSIFICATION > ANIMALS/INVERTEBRATES > MOLLUSKS
BIOLOGICAL CLASSIFICATION > ANIMALS/INVERTEBRATES > SEGMENTED WORMS (ANNELIDS)
Quality ATTRIBUTE ACCURACY REPORT: The animals counts were done according to convention: sorting under a stereo microscope after sieving and preservations. A 250µm mesh was used for sieving. Accuracy is unknown. Box cores likely lose some light epifauna during coring process, but this is the most common deep-sea infauna collection tool used.
... LOGICAL CONSISTENCY REPORT: The same procedures were used at all sites and for all species; findings should be consistent.
COMPLETENESS REPORT: Sieve size used: 250 µm. Thickness of sampled sediment layer: top 3 cm (mud layer above solid clay). Box core area: 0.25 square meters. Very small number of samples (11 box cores) taken in entire study area (Canada Basin, Northwind Ridge, coordinates above).
HORIZONTAL POSITIONAL ACCURACY REPORT: see Canadian Coast Guard website
VERTICAL POSITIONAL ACCURACY REPORT: see Canadian Coast Guard website
PROCESS DESCRIPTION: Fully explained in Methodology of Bluhm et al, 2005
PROCESS DATE: 08-09/2002; lab: Oct 2002-Jan 2004
Access Constraints None
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Data Set Progress
Distribution Media: HTTP
Distribution Format: EXCEL, OBIS schema
Fees: No Fee
Email: bluhm at ims.uaf.edu
IMS/SFOS University of Alaska Fairbanks, P.O. Box 757220
Province or State: Alaska
Postal Code: 99775-7220
Role: TECHNICAL CONTACT
Fax: +01-907 4746967
Email: fhuettmann at alaska.edu
419 Irving I, PO Box 757000
Province or State: AK
Postal Code: 99775-7000
Role: DIF AUTHOR
Email: alicia.m.aleman at nasa.gov
Goddard Space Flight Center Code 610.2
Province or State: MD
Postal Code: 20771
Bluhm et al, 2005, Ocean exploration 2002 Canada Basin, Louis S. St. Laurent, Kugluktuk-Barrow, Aug 13-Sept 8, 2002, 28: 218-231, Polar Biology
Bluhm, B.A., MacDonald I.R., Debenham, C., Iken, K, 2004, Macro and megabenthic communities in the high Arctic Canada Basin: initial findings paper, 28: 218-231, Polar Biology
Creation and Review Dates
DIF Creation Date: 2010-01-20
Last DIF Revision Date: 2010-01-21