76ef1883-c32a-49bb-a36c-2752af1b4e95
https://ipt.gbif.no/resource?r=uit-2017-cruise-zooplankton-abundance
Abundance of zooplankton during the polar night (cruise in January 2017) at 13 stations using a 64um-mesh Multinet
Coralie
Barth-Jensen
University in Tromsø
PhD student
Postboks 6050 Langnes
Tromsø
9037
NO
coralie.barth-jensen@uit.no
0000-0001-9318-2605
Malin
Daase
University in Tromsø
Researcher
Postboks 6050 Langnes
Tromsø
9037
NO
malin.daase@uit.no
0000-0001-8413-3924
Mateusz
Ormańczyk
IOPAN
Researcher
PL
ormanczyk@iopan.pl
0000-0003-2343-6694
Sławomir
Kwaśniewski
IOPAN
Professor
PL
kwas@iopan.pl
0000-0003-3104-0761
Øystein
Varpe
University in Bergen
Professor
Bergen
NO
oystein.varpe@uib.no
0000-0002-5895-6983
Camilla
Svensen
University in Tromsø
Professor
Postboks 6050 Langnes
Tromsø
9037
NO
camilla.svensen@uit.no
0000-0001-9577-3935
Coralie
Barth-Jensen
University in Tromsø
PhD student
Postboks 6050 Langnes
Tromsø
9037
NO
coralie.barth-jensen@uit.no
0000-0001-9318-2605
Rukaya
Johaadien
r.s.johaadien@nhm.uio.no
user
Camilla
Svensen
University in Tromsø
Professor
Postboks 6050 Langnes
Tromsø
9037
NO
camilla.svensen@uit.no
0000-0001-9577-3935
author
Malin
Daase
University in Tromsø
Researcher
Postboks 6050 Langnes
Tromsø
9037
NO
malin.daase@uit.no
0000-0001-8413-3924
author
Coralie
Barth-Jensen
University in Tromsø
PhD student
Postboks 6050 Langnes
Tromsø
9037
NO
77645554
coralie.barth-jensen@uit.no
0000-0001-9318-2605
author
Mateusz
Ormańczyk
IOPAN
Researcher
PL
ormanczyk@iopan.pl
0000-0003-2343-6694
author
Sławomir
Kwaśniewski
IOPAN
PL
kwas@iopan.pl
0000-0003-3104-0761
author
Øystein
Varpe
University in Bergen
Professor
Bergen
NO
oystein.varpe@uib.no
0000-0002-5895-6983
author
2022-12-06
eng
Sampling was conducted during the Polar Night cruise 2017 (PNC17), 6th to 17th January 2017 in the waters of the western Barents Sea and Svalbard archipelago.
Zooplankton was collected using a Multinet (64um-mesh)
This dataset issued in the publication of Barth-Jensen et al. 2022
Samplingevent
GBIF Dataset Type Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_type_2015-07-10.xml
zooplankton
meroplankton
Svalbard
fjord
polar night
abundances
n/a
This work is licensed under a Creative Commons Attribution Non Commercial (CC-BY-NC) 4.0 License.
13 stations were sampled:
Six oceanic stations: TB1 and TB2 (located in the western Barents Sea), NS1, NS4 and NS10 (located on the shelf north of Svalbard) and NS6 (located off the shelf north of Svalbard).
Seven fjord stations: VMF9 (located near Bellsund, at the opening of Van Mijenfjorden), KF1, KF2 and KF3 (located in Krossfjorden on the west coast of Svalbard), and R3, R3b and R4 (located in Rijpfjorden on the northern coast of Nordaustlandet).
11.596
22.256
81.356
70.507
2017-01-06
2017-01-17
Bopyridae
Isopoda
Meganyctiphanes norvegica
Thysanoessa inermis
Thysanoessa longicaudata
Thysanoessa raschii
Sarsia
Hydrozoa
Hydrozoa larvae
Dimophyes arctica
Siphonophorae
Beroe cucumis
Mertensia ovum
Nemertea pilidium
Pelagobia
Tomopteris septentrionalis
Echinodermata larvae
Bryozoa larvae
Fritillaria borealis
Decapoda
Amphipoda
Ctenophora
Rotifera
Turbelaria
Acartia clausii
Acartia longiremis
Aetideidae
Aetideopsis minor
Bradyidius similis
Calanus finmarchicus
Calanus glacialis
Calanus hyperboreus
Candacia armata
Clytmenestra scutellata
Ctenocalanus
Gaetanus tenuispinus
Heterorhabdus norvegicus
Jashnovia brevis
Metridia longa
species
Metridia lucens
Paracalanus/Clausocalanus/Ctenocalanus CIV-CV
genus
Paraeuchaeta
species
Pleuromamma robusta
genus
Pseudocalanus
species
Scolecithricella minor
genus
Spinocalanus
Calanoida nauplii
Cyclopoida nauplii
Harpacticoida nauplii
Clausocalanus
Calocalanus styliremis
Cyclopina schneideri
Harpacticoida
Microcalanus
Microsetella norvegica
Microsetella rosea
Oithona atlantica
Oithona similis
Oithona nana
Oncaeidae
Paracalanus
Aglantha digitale
Bivalvia
Cirripedia
Clione limacina
Erythrops erythrophthalma
Eukrohnia hamata
Euphausiacea
Gastropoda veliger
Limacina helicina
Limacina retroversa
Oikopleura
Ostracods
Polychaeta
Sagitta elegans
Themisto abyssorum
notPlanned
Coralie
Barth-Jensen
University in Tromsø
PhD student
Postboks 6050 Langnes
Tromsø
9037
NO
coralie.barth-jensen@uit.no
0000-0001-9318-2605
Immediately after collection the samples were fixed in hexamethylenetetramine-buffered formaldehyde in seawater solution at 4% final concentration. The samples were later analyzed under a stereomicroscope (Olympus SZX7). Organisms with total length > 5 mm were sorted from the sample, identified and counted. Then aliquots were taken with a 2-mL pipette with the tip cut at 5-mm diameter to allow collection of mesozooplankton. The number of aliquots and subsamples analyzed was chosen so that at least 300 individuals were counted in each sample. The remainder of the sample was screened for rare species. Species were identified to the lowest taxonomic level and classified as holoplankton or meroplankton.
For copepods, a detailed analysis of copepodid stage composition was performed for Calanus spp., O. similis, M. norvegica, Pseudocalanus spp., M. longa and Microcalanus spp. The CI to CIII stages were not differentiated for Microcalanus spp. at station TB1, and for O. similis and M. norvegica at all stations. Early stages (CI to CIII) classified as Microcalanus spp. probably included young copepodids of Paracalanus spp., Clausocalanus spp. and Ctenocalanus spp., because it is difficult to distinguish these species via visual identification. The CI to CIII stages of M. longa and M. lucens were not differentiated, and were designated M. longa. The three Calanus species were differentiated on the basis of size (Kwasniewski et al. 2003); this involves some uncertainty because prosome lengths of species of the genus can overlap (Gabrielsen et al. 2012; Choquet et al. 2018). Copepod nauplii were determined to order (Calanoida, Cyclopoida and Harpacticoida).
13 stations were sampled between 2017-01-06 and 2017-01-17:
Six oceanic stations: TB1 and TB2 (located in the western Barents Sea), NS1, NS4 and NS10 (located on the shelf north of Svalbard) and NS6 (located off the shelf north of Svalbard).
Seven fjord stations: VMF9 (located near Bellsund, at the opening of Van Mijenfjorden), KF1, KF2 and KF3 (located in Krossfjorden on the west coast of Svalbard), and R3, R3b and R4 (located in Rijpfjorden on the northern coast of Nordaustlandet).
Zooplankton was sampled using vertically stratified net hauls with a multiple opening/closing net (MultiNet type Midi, Hydro-Bios, Germany, mouth opening 0.25 m2, 64-µm mesh, towing speed 0.4 m s-1). The four depth strata sampled were 3-50 m, 50-100 m, 100-200 m and 200-400 m, or to 10 m above the bottom at stations shallower than 400 m. A 64-µm mesh WP-2 net (Hydro-Bios, Germany, opening 0.25 m2) was used for the 0-50 m sampling at station TB2 due to a tear in the MultiNet net bag. A technical error resulted in only the upper 100 m being sampled at station KF1.
PNC17_Polar night cruise January 2017_Zooplankton abundances
Coralie
Barth-Jensen
0000-0001-9318-2605
owner
Camilla
Svensen
0000-0001-9577-3935
principalInvestigator
UiT funded the PhD grant of CBJ, and the ARCTOS network funded parts of the cruise. The fieldwork was funded by the Norwegian Research Council (Arctic ABC [244319]). MD received additional funding through NRC project Deep Impact [300333] and was supported by Tromsø Forskningsstiftelse (project Arctic ABC-East).
2022-01-27T14:15:27.960+00:00
dataset
Barth-Jensen C, Daase M, Ormańczyk M, Kwaśniewski S, Varpe Ø, Svensen C (2022): Abundance of zooplankton during the polar night (cruise in January 2017) at 13 stations using a 64um-mesh Multinet. v1.2. UiT The Arctic University of Norway. Dataset/Samplingevent. https://ipt.gbif.no/resource?r=uit-2017-cruise-zooplankton-abundance&v=1.2
76ef1883-c32a-49bb-a36c-2752af1b4e95/v1.2.xml