The Faunal Assemblage Inhabiting Seasonal Sea Ice in the Nearshore Arctic Ocean (Beaufort Sea, Alaska) in Spring 1980 with Emphasis on CopepodsEntry ID: ArcOD_2008I3
Abstract: Large numbers of invertebrates were collected from the lower layer of seasonal ice in the nearshore Beaufort Sea, off the northern Beaufort Sea, off the northern coast of Alaska in spring 1980. Over 90% of the individuals found belonged to meiofaunal taxa. Although density within the ice was low compared to that typically found in sediments, it was comparable to the highest previous estimate from ... sea ice. Densities were lowest in samples taken in April and reached a maximum of around 50000 individuals m-2 in June. Nematodes were numerically dominant, but copepods and turbellarians were also abundant. Population structures of the 2 most numerous copepod species were examined and found to differ greatly. Cyclopina gracilis appeared to reproduce continuously during the study; both adults and young copepodites were always present. The population of Harpacticus sp. initially consisted of only juveniles; the growth fo a single cohort was observed. Harpacticus sp. mated in the ice, but gravid females did not appear during the sampling period. Although the ephemeral seasonal sea ice habitat would seem to be very different from typical habitats of benthic copepods, these two species did not appear to posses any special strategies for living there.
Purpose: These data present basic information about seasonal sea ice fauna in the nearshore arctic ocean with an emphasis on copepods.
Data Set Citation
Dataset Originator/Creator: John C. Kern and Andrew G. Carey Jr.
Dataset Title: The Faunal Assemblage Inhabiting Seasonal Sea Ice in the Nearshore Arctic Ocean (Beaufort Sea, Alaska) in Spring 1980 with Emphasis on Copepods
Dataset Series Name: Marine Biol. Prog. Ser.
Dataset Release Date: 1983
Issue Identification: 10: 159-167
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: 1980-04-24Stop Date: 1980-06-02
Quality ATTRIBUTE ACCURACY REPORT: Samples were sorted and counted under a dissecting microsocope. 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 – first and last days the scraper rather than the corer was used.
COMPLETENESS REPORT: Core samples were 10.5 cm in diameter, filtered through a 64 micrometer mesh.
PROCESS DESCRIPTION: added IOOS Core Variables. Removed broken xml tags. Fixed copy/paste error. Changed nameyearofscientificname to yearofscientificname to match origional xls spreadsheet field name.
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
Department of Biology, University of South Florida
Province or State: Florida
Postal Code: 33620
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
Creation and Review Dates
DIF Creation Date: 2008-01-11
Last DIF Revision Date: 2010-02-24