Sampling event

aen-jc1-mesozooplankton-occurence

Latest version published by The Nansen Legacy Project on 26 October 2022 The Nansen Legacy Project
Publication date:
26 October 2022
License:
CC-BY 4.0

Download the latest version of this resource data as a Darwin Core Archive (DwC-A) or the resource metadata as EML or RTF:

Data as a DwC-A file download 81 records in English (415 KB) - Update frequency: unknown
Metadata as an EML file download in English (11 KB)
Metadata as an RTF file download in English (10 KB)

Description

The dataset contains mesozooplankton abundance (ind/m3). It has been sampled at 5 distinct depths using MultiNet Midi both 64 micron and 180 micron nets. All specimens are identified to the lowest taxonomical level and the abundance is given for a specific species and stage or size group.Use either data from MultiNet 64 um or from MultiNet 180 um depending on whether the focus is small or large mesozooplankton

Data Records

The data in this sampling event resource has been published as a Darwin Core Archive (DwC-A), which is a standardized format for sharing biodiversity data as a set of one or more data tables. The core data table contains 81 records.

2 extension data tables also exist. An extension record supplies extra information about a core record. The number of records in each extension data table is illustrated below.

Event (core)
81
ExtendedMeasurementOrFact 
6515
Occurrence 
3965

This IPT archives the data and thus serves as the data repository. The data and resource metadata are available for download in the downloads section. The versions table lists other versions of the resource that have been made publicly available and allows tracking changes made to the resource over time.

Versions

The table below shows only published versions of the resource that are publicly accessible.

Rights

Researchers should respect the following rights statement:

The publisher and rights holder of this work is The Nansen Legacy Project. This work is licensed under a Creative Commons Attribution (CC-BY) 4.0 License.

GBIF Registration

This resource has not been registered with GBIF

Keywords

zooplankton; mesozooplankton; copepods; abundance; ind/m3; Northern Barents Sea

Contacts

Camilla Svensen
  • Originator
Professor
UiT The Arctic University of Norway
9037 Tromso
NO
Mateusz Ormańczyk
  • Originator
Institute of Oceanology Polish Academy of Sciences
Sopot
PL
Anette Wold
  • Metadata Provider
  • Originator
  • User
  • Point Of Contact
Senioringeniør
Norwegian Polar Institute
9007 Tromso
NO
Elisabeth Halvorsen
  • Originator
Overingeniør
UiT The Arctic University of Norway
9037 Tromso
Janne Elisabeth Søreide
  • Originator
Professor
The University Centre in Svalbard
9171 Longyearbyen
NO
Haakon Hop
  • Originator
Professor
Norwegian Polar Institute
9007 Tromso
NO
Slawomir Kwasniewski
  • Originator
Institute of Oceanology Polish Academy of Sciences
Sopot
PL

Geographic Coverage

Northern Barent Sea

Bounding Coordinates South West [76, 29], North East [82, 35]

Temporal Coverage

Start Date / End Date 2018-08-06 / 2022-10-23

Sampling Methods

The dataset contains mesozooplankton abundance (ind/m3). It has been sampled at 5 distinct depths using a Multinet Midi (HydroBios, opening: 0.25m2, net length: 250 cm). Small mesozooplankton were collected with a mesh-size 64 µm and large mesozooplankton were collected with a mesh-size 180 µm. All samples were preserved in 4 % formaldehyde free from acid. PLEASE NOTE: THIS DATASET CONTAINS TWO COMPLETE DATASETS OF ZOOPLANKTON: ONE FOR SMALL MESOZOOPLANKTON (APPROX BODY SIZE BELOW 2 MM) COLLECTED WITH MULTINET 64 µM AND ONE FOR LARGE MESOZOOPLANKTON (APPROX BODY SIZE ABOVE 2 MM) COLLECTED WITH MULTINET 180 µM MESH SIZE. THE INFO ABOUT WHICH NET IS USED CAN BE FOUND IN gearType in extendedMeasurment andFacts USE EITHER 64 UM OR 180 UM DEPENDING ON WHETHER THE FOCUS IS SMALL OR LARGE MESOZOOPLANKTON

Study Extent The sampling covers a transect from the central Barents Sea (76N) to the Arctic Ocean (82N) east of Svalbard, including 7 stations (P1 to P7). Each sampling event includes 5 distinct depth layers Shallow stations: Bottom-200m, 200-100m, 100-50m, 50-20m & 20-0m Deep stations: Bottom-600m, 600-200m, 200-50m, 50-20m & 20-0m
Quality Control The analysis of organism has been done according to standard procedures used in multiple other studies. The results have been reviewed by several of the researchers listed under resource creators.

Method step description:

  1. All samples have been analysed at Institute of Oceanology of the Polish Academy of Sciences (IOPAN). The organisms were identified and counted under a stereomicroscope equipped with an ocular micrometer, according to standard procedures (Harris et al. 2000). Small-sized zooplankters (most of Copepoda, juvenile stages of Pteropoda, Euphausiacea, Ostracoda, Amphipoda and Chaetognatha) were identified and counted in sub-samples obtained from the fixed sample volume by automatic pipette (approximately 500 individuals). Large zooplankters (big Copepoda, Pteropoda, Euphausiacea, Ostracoda, Amphipoda, Decapoda, Appendicularia, Chaetognatha and Pisces larvae) were sorted out and identified from the whole sample. Representatives of Calanus spp. were identified at species level based on morphology and prosome lengths of individual copepodid stages (Kwasniewski et al. 2003).