The Distribution of Zooplankton in the Bering Strait, July 1991.Entry ID: ArcOD_2006P2
Abstract: Zooplankton was sampled at 16 stations across the Bering Strait during a joint Russian-U.S. research cruise at R/V Tiglax in July 1991. Vertical stratified tows (0 - bottom and 0 – thermocline depth) were done with a ring net (1 m diameter, 333 µm mesh). Distinct zooplankton communities were found in the Bering Sea/Anadyr and Alaskan water masses. The influence of the Anadyr water led to a decline ... in the number of species in the Bering Shelf water community in the western Bering Strait. Zooplankton biomass in the surface layer of Alaska coastal waters was 1.5 times higher than biomass in the surface layer of Bering/Anadyr waters. No differences were observed in zooplankton density and biomass between the thermocline and surface and bottom and surface in Alaska coastal waters, while in other regions maximum density and biomass occurred below the thermocline. Total zooplankton abundance and biomass in the Bering-Anadyr water were dominated by North Pacific species (e.g., Neocalanus plumchrus, Neocalanus cristatus, Metridia pacifica), while in the Alaskan water Calanus marshallae, Acartia spp., Centropages abdominalis and larval euphausiids were common. Physical concentration of zooplankton by currents led to highest zooplankton densities near the Diomede Islands.
Purpose: To assess summer species composition, abundance and distribution of zooplankton across the Bering Strait.
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Data Set Citation
Dataset Originator/Creator: Alexei Pinchuk
Dataset Title: The Distribution of Zooplankton in the Bering Strait, July 1991.
Dataset Series Name: Exploration of the Fauna of the Seas (in Russian)
Dataset Release Date: 1993
Issue Identification: 45(53): 138-154Online 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: 2001-07-01Stop Date: 2001-07-08
BIOLOGICAL CLASSIFICATION > ANIMALS/VERTEBRATES > FISH > RAY-FINNED FISHES
BIOLOGICAL CLASSIFICATION > ANIMALS/INVERTEBRATES > ARTHROPODS > CRUSTACEANS > EUPHAUSIIDS (KRILL)
BIOLOGICAL CLASSIFICATION > ANIMALS/INVERTEBRATES > ARTHROPODS > CRUSTACEANS > COPEPODS
BIOLOGICAL CLASSIFICATION > ANIMALS/INVERTEBRATES > ARTHROPODS > CRUSTACEANS > DECAPODS
BIOLOGICAL CLASSIFICATION > ANIMALS/INVERTEBRATES > ARTHROPODS > CRUSTACEANS > BARNACLES
BIOLOGICAL CLASSIFICATION > ANIMALS/INVERTEBRATES > ARTHROPODS > CRUSTACEANS > OSTRACODS
BIOLOGICAL CLASSIFICATION > ANIMALS/INVERTEBRATES > CNIDARIANS > HYDROZOANS
BIOLOGICAL CLASSIFICATION > ANIMALS/INVERTEBRATES > MOLLUSKS > GASTROPODS
BIOLOGICAL CLASSIFICATION > ANIMALS/INVERTEBRATES > MOLLUSKS > BIVALVES
BIOLOGICAL CLASSIFICATION > ANIMALS/INVERTEBRATES > SEGMENTED WORMS (ANNELIDS)
BIOSPHERE > AQUATIC ECOSYSTEMS > PLANKTON > ZOOPLANKTON
Quality ATTRIBUTE ACCURACY REPORT: The animals counts were done according to convention: sorting under a stereo microscope after preservations. Geographical positions were taken from ship log before deploying the net.
LOGICAL CONSISTENCY REPORT: The same procedures were used at all sites and for all species; findings should be consistent.
... COMPLETENESS REPORT: Mesh size used: 333 µm. Thickness of sampled layer: from the bottom to the top and from the thermocline to the top. Abundance computed for each taxon per sample as a number of specimens divided by volume of filtered water (estimated by multiplying the net mouth area by tow depth).
HORIZONTAL POSITIONAL ACCURACY REPORT: contact R/V Tiglax, U.S. F.W.S
PROCESS DESCRIPTION: Zooplankton was collected with 333 µm mesh ring net on 16 stations in July 1991. Duplicate vertical tows were made at bottom - 0 m, and thermocline - 0 m depth increments. Zooplankton samples were gently rinsed from the net and preserved in buffered formaldehyde seawater solution (4% final concentration). Preserved samples were sorted and identified to the lowest taxon possible under stereo microscopes in the lab. Mean abundance and biomass resulted from repetitive tows were calculated for each layer on each station.
PROCESS DESCRIPTION: Added AOOS/IOOS core variables. Added ArcOD archive information
PROCESS DATE: 1991
PROCESS DATE: 20091208
These data present a snapshot in time, but are representative for the location and depth where collected. Identification is done where applicable and known; different taxonomies might result into different species names.
Access Constraints None
Use Constraints These data cannot be redistributed to third parties.
ArcOD shall not be held liable for improper or incorrect use of the data described and/or contained herein. These data and related graphics (i.e. GIF or JPG format files) are not legal documents and are not intended to be used as such. The information contained in these data is dynamic and may change over time. The data ... are not better than the original sources from which they were derived. It is the responsibility of the data user to use the data appropriately and consistent within the limitations of geospatial data in general and these data in particular. The related graphics are intended to aid the data user in acquiring relevant data; it is not appropriate to use the related graphics as data. ArcOD gives no warranty, expressed or implied, as to the accuracy, reliability, or completeness of these data. It is strongly recommended that these data are directly acquired from an ArcOD server and not indirectly through other sources which may have changed the data in some way. Although these data have been processed successfully on computer systems at ArcOD, no warranty expressed or implied is made regarding the utility of the data on other systems 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.
Data Set Progress
Distribution Format: MS Excel database
Phone: 907 474-7842
P.O. Box 757220
Province or State: Alaska
Postal Code: 99775
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
Coyle, K.O., Chavtur, V.G., Pinchuk, A.I. 1996 Zooplankton of the Bering Sea: A review of Russian-language literature. Ecology of the Bering Sea: a review of Russian literature. Alaska Sea Grant. 97-133
Piatt J.F., A.I. Pinchuk, A.S. Kitaisky, A.M. Springer, S.A. Hatch 1992 Foraging distribution and feeding ecology of seabirds at the Diomede Islands, Bering Strait. U.S. Fish and Wildlife. Serv. Final Report for Minerals Management Service OCS Study MMS 92-0041, Anchorage, Alaska: 133 pp.
Graham, C. H., S. Ferrier, F. Huettmann, C. Moritz and A.T. Peterson 2004 New developments in museum-based informatics and applications in biodiversity analysis.
Creation and Review Dates
DIF Creation Date: 2009-03-16
Last DIF Revision Date: 2010-02-25