{"key":"66825187-bc98-4eda-bfe1-e2bd477d2890","installationKey":"c4e83f8a-f24c-4573-a197-f085ca242917","publishingOrganizationKey":"689b40c4-ff31-4cd0-83a5-a7a828f1cd92","doi":"10.15468/6btf8m","version":"1.2","external":false,"numConstituents":0,"type":"SAMPLING_EVENT","subtype":"OBSERVATION","title":"Size and abundance data from Pro Mare project,Barents Sea 1984, 1987, 1988.","description":"<p>Raw occurrence data from the Pro Mare project in the Barents Sea 1984, 1987, and 1988\nSome of the data were reported in:\nNorrbin, M.F., 1992. Overwintering Strategies of Small Copepods in High Latitude Marine Environments. (Dissertation, Univ. Gothenburg). 28 pp. &#43; 5 papers. ISBN  91-628-0700-5. \nNorrbin, M.F., 1991. Gonad maturation as an indication of seasonal cycles for several species of small copepods in the Barents Sea. In: E. Sakshaug, C.C.E. Hopkins and N.A. Øritsland (eds.).Pro Mare Symposium on Polar Marine Ecology 1990. Polar Res. 10: 421-432\nNorrbin, M.F., 1993. Skewed sex ratios in overwintering copepodites of Pseudocalanus in Norwegian fjords - a result of sex-specific selection? Bull. of mar. Sci. 53: 204-215.\nJonas F. Henriksen, 2000. The importance of appendicularians (Tunicata: Larvacea) in the Barents Sea and adjacent waters. M.Sci thesis, University of Tromsø</p>","language":"eng","citation":{"text":"Durazzano T, Norrbin F (2026). Size and abundance data from Pro Mare project,Barents Sea 1984, 1987, 1988.. Version 1.2. UiT The Arctic University of Norway. 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ank":{"verbatim":"class","interpreted":"CLASS"}},{"scientificName":"Euphausiidae ","rank":{"verbatim":"family","interpreted":"FAMILY"}},{"scientificName":"Malacostraca","rank":{"verbatim":"class","interpreted":"CLASS"}},{"scientificName":"Gastropoda","rank":{"verbatim":"class","interpreted":"CLASS"}},{"scientificName":"Euphausiacea ","rank":{"verbatim":"order","interpreted":"ORDER"}},{"scientificName":"Cnidaria","rank":{"verbatim":"phylum","interpreted":"PHYLUM"}}]}],"geographicCoverages":[{"description":"Barents Sea","boundingBox":{"minLatitude":73.0,"maxLatitude":81.3,"minLongitude":22.333,"maxLongitude":32.167,"globalCoverage":false}}],"temporalCoverages":[],"keywordCollections":[{"thesaurus":"GBIF Dataset Type Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_type_2015-07-10.xml","keywords":["Samplingevent"]},{"thesaurus":"GBIF Dataset Subtype Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_subtype.xml","keywords":["Observation"]}],"project":{"title":"Size and abundance data from Pro Mare project,Barents Sea 1984, 1987, 1988.","contacts":[{"type":"ADMINISTRATIVE_POINT_OF_CONTACT","primary":false,"userId":["https://orcid.org/0000-0001-5062-5138"],"firstName":"Fredrika","lastName":"Norrbin","position":[],"email":[],"phone":[],"homepage":[],"address":[]}],"awards":[],"relatedProjects":[]},"samplingDescription":{"studyExtent":"Between 1984–1990, the Norwegian Research Council supported system-wide ecological programmes that focused upon the southwestern and central region of the Barents Sea.","sampling":"standard Juday nets (0,36 m opening, 90 µm mesh size)\t\t\t\t\t\t\t\t\t\t\t\t\t\nstandard WP-2 nets (0.56 m opening, 200 µm mesh size)\t\t\t\t\t\t\t\t\t\t\t\t\t\nmodified WP-2 nets (0.56 m opening, 90 µm mesh size)\t\t\t\t\t\t\t\t\t\t\t\t\t\nsubmersible plankton pumps \"Hufsa\" owned by IMR (Bergen; 90 µm mesh size) and University in Tromsø ( 200 µm mesh size). Opening diameter 0.25 m.\t\t\t\t\t\t\t\t\t\t\t\t\t\nSome samples were shared with other researchers - the fraction I received has been weighed into \"fraction counted\"","methodSteps":["Metadata station data from files, notes and cruise reports\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\nAbundances \tcount data from calculation files checked against hand-written raw data. Only numerical values above zero and presence data are noted. \t\t\t\t\t\t\t\t\t\nData calculated per square m sea surface and down to sampling depth. Depth has been corrected for towing angle, when necessary. \t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\nAbundances per square m\tCount data for split water-column (cruise 10, st 6 & 7) and Hufsa pump-samples at discrete depths (cruise 10, st 7, and cruise ED = Endre Dyrøy)\t\nMicroscope_Pseudocalanus prosome lengths from formalin-preserved samples. Data from files and handwritten notes\t\t\t\t\t\t\t \nSpecies have been identified according to personal communication from Bruce W.  Frost, Univ. Washington, and publication\t\t\t\t\t\t\t\t\t\nFrost, BW (1989). A taxonomy of the marine calanoid copepod genus Pseudocalanus. Canadian Journal of Zoology 67: 525-551. https://doi.org/10.1139/z89-077\t\t\t\t\t\t\t\t\t\t\t\t\nMicroscope_Microcalanus\tprosome lengths from formalin-preserved samples. Data from files and handwritten notes\t\t\t\t\t\t\t\t\t\nSpecies have been identified according to personal communication from Bruce Frost, Univ. Washington, and technical report by J. Vidal \t\t\t\t\t\t\t\t\t\nVidal, Julio (1971). Taxonomic Guides to Arctic Zooplankton (IV): Key to the Calanoid Copepods of the Central Arctic Ocean. Technical report nr 5. University of Southern California, Department of biological sciences. 254 pp.\t\t\t\t\t\t\t\t\t\nLength of Microcalanus sp adult females overlap mostly with M. pusillus. There is a small overlap of the size distributions between M. pusillus and M. pygmaeus\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\nStained_Pseudocalanus Size measurements (digitized) from formalin fixed, stained and dehydrated copepods in cedarwood oil.\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\nStained_Microcalanus Size measurements (digitized) from formalin fixed, stained and dehydrated copepods in cedarwood oil.\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\nSamples from stained samples \t\t\t\t\t\t\t\t\t\t\t\t\nStained samples were preserved in formalin, then stained with borax-carmine and dehydrated and transferred to cedarwood oil. This procedure decreased sizes by ca 24% by length (Norrbin, 1994).\t\t\t\t\t\t\t\t\t\t\t\t\nThese contain data on prosome length, width and area, gonad area (sometimes length and width) gonad development stage, oil sack area, sometimes gut contents, and sometimes also visible eggs (oocytes) or diverticulae\t\t\t\t\t\t\t\t\t\t\t\t\nDescribed in e.g. Norrbin (1991) listed above and Norrbin (1994)"]},"countryCoverage":[],"collections":[],"dataDescriptions":[],"dataLanguage":"eng","pubDate":"2026-02-25T00:00:00.000+00:00","maintenanceUpdateFrequency":"AS_NEEDED","maintenanceDescription":"","license":"http://creativecommons.org/licenses/by/4.0/legalcode","dwca":{"coreType":"http://rs.tdwg.org/dwc/terms/Event","extensions":["http://rs.iobis.org/obis/terms/ExtendedMeasurementOrFact","http://rs.tdwg.org/dwc/terms/Occurrence"],"modified":"2026-07-12T10:30:53.812+00:00"},"approximateCounts":{"occurrenceCount":1806}}