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CASES: The pre-winter assemblages of southeastern Beaufort Sea
Darnis, Gérald, Barber, David G., and Fortier, Louis. 2015. CASES: The pre-winter assemblages of southeastern Beaufort Sea. Version 1 In ArcOD Digital Collections. Institute of Marine Science University of Alaska, Fairbanks, AK, USA. Published by OBIS, Digital Accessed on –INSERT DATE

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Archived data
Availability: Creative Commons License This dataset is licensed under a Creative Commons Attribution 4.0 International License.

This dataset has 1728 observations representing 54 taxonomic categories from the southeastern Beaufort Sea. This dataset was used to study the zooplankton communities in southeastern Beaufort Sea in September-October 2002. At each of the 35 stations of the CASES (Canadian Arctic Shelf Exchange Study) 2002 sampling grid, a 200 µm-mesh net tow was carried out. more

Cluster analysis and non-metric multidimensional scaling revealed three distinct mesozooplankton assemblages. A neritic assemblage occurred on the Mackenzie Shelf and in Franklin Bay, while distinct off-shelf assemblages prevailed in the Cape Bathurst Polynya and on the Beaufort Slope respectively. Over 95% of the mesozooplankton was comprised of eight copepod taxa. Pseudocalanus spp. contributed predominantly to the discrimination of the three assemblages and was the only significant indicator of the Shelf assemblage. Oithona similis, Oncaea borealis, Metridia longa and Calanus hyperboreus were indicators of the Polynya assemblage. Cyclopina sp. And Microcalanus pygmaeus were indicative of the overall off-shelf community (Polynya and Slope assemblages). The importance of omnivores and carnivores increased from the shelf to the polynya and the slope.

This dataset was presented in a publication by Darnis et al (2008) and exists in an Excel format. This resource contains the species distribution and abundance information associated with this dataset. This resource contains abundance (#/m3) information from this dataset.

Biology > Zooplankton
Marine, PNW, Beaufort Sea, Larvacea, Bivalvia, Chaetognatha, Cnidaria, Ctenophora, Gastropoda, Malacostraca, Maxillopoda, Ophiuroidea, Ostracoda, Polychaeta

Geographical coverage
PNW, Beaufort Sea [Marine Regions]

Temporal coverage
22 September 2002 - 14 October 2002

Taxonomic coverage
Larvacea [WoRMS]
Bivalvia [WoRMS]
Chaetognatha [WoRMS]
Cnidaria [WoRMS]
Ctenophora [WoRMS]
Gastropoda [WoRMS]
Malacostraca [WoRMS]
Maxillopoda [WoRMS]
Ophiuroidea [WoRMS]
Ostracoda [WoRMS]
Polychaeta [WoRMS]

Occurrence of biota

Université Laval, moredata creator University of Alaska Fairbanks; School of Fisheries and Ocean Sciences (SFOS), more

Related datasets
Published in:
ArcOD/AOOS: Arctic Ocean Biogeographic Information System, more

Dataset status: Completed
Data type: Data
Data origin: Research: field survey
Metadatarecord created: 2015-04-29
Information last updated: 2015-04-29
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