Sea-ice nematodes (Monhysteroidea) collected from the bottom of first year sea-ice, Resolute Passage, Canadian High Arctic, during April/May 1992Entry ID: ArcOD_2008I5
Abstract: This data set (35 rows and 5 species: Theristus melnikovi, Cryonema tenue, Monhysterid sp. "alpha", Monhysterid sp. "beta", Monhysterid sp. "gamma") describes nematodes from the bottom section of first-year ice. The ice was sampled every 4 days during April/May 1992 at two adjacent sites of an ice field station in Resolute Passage. The species have been identified as members of the Monhysteroidea: ... Theristus melnikovi Tchesunov, 1986; Cryonema tenue Tchesunov and Riemann, 1995; and three unknown monhysterids that are similar to Cryonema. The maximum population density of nematodes was 23 810 m2. None of the ice nematodes has ever been reported from benthic samples and their occurrence in ephemeral sea ice is the subject of hypotheses. Since a drastic change of the community structure was noted to take place within a few days, it is assumed that the majority of ice-nematode species do not represent an autochthonous faunal element in the examined habitat and that the main site for their reproduction is elsewhere. The nematode community found near the undersurface of ephemeral ice is apparently influenced by particular import and export processes that are unknown as yet.
Purpose: Analysis of sea ice related nematode diversity.
Data Set Citation
Dataset Originator/Creator: Franz Riemann and Telesphore Sime-Ngando
Dataset Title: Sea-ice nematodes (Monhysteroidea) collected from the bottom of first year sea-ice, Resolute Passage, Canadian High Arctic, during April/May 1992
Dataset Series Name: Polar Biology
Dataset Release Date: 1997
Issue Identification: 18: 70-75
Data Presentation Form: documentOnline 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: 1992-04-28Stop Date: 1992-05-22
Quality ATTRIBUTE ACCURACY REPORT: The animals counts were done according to convention: sorting under a stereo microscope after preservations. Geographical positions taken from ship log before deploying the net. Spatial accuracy unknown. Ask authors for details.
LOGICAL CONSISTENCY REPORT: The same procedures were used at all sites and for all species; findings should be consistent.
COMPLETENESS REPORT: Core samples were 7.6 cm in diameter and the bottom 3+-1 cm. Only the bottom of the samples was used.
PROCESS DESCRIPTION: Added AOOS/IOOS core variables. Added ArcOD archive information. Changed "basisofrecords" attibute name to "basisofrecord", and "collectionmethod" to "collectingmethod" to match obis.xml
Access Constraints None
Use Constraints Although these data have been processed successfully on a computer system at the University of Alaska and ArcOD, no warranty expressed or implied is made regarding the accuracy or utility of the data on any other system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. This disclaimer applies both to individual use of the data and aggregate use ... with other data. It is strongly recommended that these data are directly acquired from a University of Alaska server, and not indirectly through other sources which may have changed the data in some way. It is also strongly recommended that careful attention be paid to the contents of the metadata file associated with these data. The University of Alaska shall not be held liable for improper or incorrect use of the data described and/or contained herein.
Data Set Progress
Distribution Format: XLS
Province or State: Bremen
Postal Code: D-27515
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
Extended Metadata Properties
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Creation and Review Dates
DIF Creation Date: 2008-01-11
Last DIF Revision Date: 2010-02-24