Dataset

Benthos_AB202_UNIS_2025

OBIS-GBIF Norway Open in mapper Explore occurrences

This research was conducted aboard the research vessel Helmer Hanssen over a five-day cruise around Svalbard. The fieldwork was a part of a course (AB-202) organized by UNIS (The University Centre in Svalbard), involving 18 students, professors, and the ship's crew. Sampling was carried out at four stations: Isfjorden(IsK), Kongsjorden (KB3), Smeerenburg (SME) and St.Jonsfjorden (STJ). The aim was to investigate benthic communities and environmental conditions across fjords with varying degrees of Atlantic and Arctic influence. At each station, benthic samples were collected using a bottom trawl and Van Veen grab, followed by sieving and taxonomic identification.The dataset provides insight into species composition distribution, and relative abundance in Svalbard fjords during early spring. These data can contribute to longterm monitoring of benthic communities and assessments of climate-related changes in Arctic marine ecosystems.

Published: August 05, 2025 at 07:59

License: This work is licensed under a Creative Commons Attribution (CC-BY 4.0) License

URL: https://ipt.gbif.no/resource?r=unis_ab202_benthos_2025

Contacts:

Karina Poplavskaja
UNIS

Helene Vatne Thue
UNIS

Emma Strand Haugen
UNIS

Charlotte Michelet
UNIS

Johanna Goutard-Dekeyeser
UNIS

Friederike Cramer
UNIS

Arunima Sen
UNIS

Eric Jorda Molina
Havforskningsinstittutet

187
occurrence records
70
taxa
25
species

Taxa

Missing and invalid fields

Field Missing Invalid
coordinateUncertaintyInMeters 187
100.0%
decimalLatitude 1
0.5%
decimalLongitude 1
0.5%
eventDate 1
0.5%
maximumDepthInMeters 1
0.5%
minimumDepthInMeters 1
0.5%
scientificName 1
0.5%
scientificNameID 187
100.0%

Quality flags

The OBIS data quality flags are documented at https://github.com/iobis/obis-qc.

Flag Dropped Records
DEPTH_EXCEEDS_BATH 25
13.4%
NO_MATCH 11
5.9%
NO_COORD 1
0.5%
NO_DEPTH 1
0.5%

Measurement types

DNA derived data