Dataset

UNESCO eDNA expedition in The Wadden Sea (Denmark, Germany, The Netherlands): April 2023

OBIS Secretariat DNADerivedData Open in mapper Explore occurrences

This dataset contains the eDNA data collected as a part of the UNESCO eDNA expeditions in Marine World Heritage Sites project in 2022-2024. The project was coordinated in collaboration with the Ocean Biodiversity Information System (OBIS) of IOC-UNESCO and the marine programme of the UNESCO World Heritage Center, and funded by the government of Flanders (Kingdom of Belgium). The samples were collected with citizen science eDNA sampling kits, containing a syringe and a filter, and preserved with Longmire's buffer, before sequencing at a central laboratory. Five different biomarkers were analysed, including 12SMifish, Mimammal, Teleo, 16S-Vert and COI markers. The sequences were analysed with the PacMAN pipeline and quality controlled including a validation check by local scientists and site managers as well as compared to existing knowledge on species distributions in OBIS and GBIF. The full sampling protocols and materials are available on the project website (https://www.unesco.org/en/edna-training-materials?hub=66910), and the bioinformatics pipeline is on github (https://github.com/iobis/PacMAN-pipeline). The data can also be explored on the eDNA expeditions dashboard (https://dashboard.ednaexpeditions.org/).

Citation: Scheiffarth G, Hansen J, Meyer J, Salomonsen X, van der Heij W, van Bussel T, Busch J, Meise K, Nazzari C, Suominen S, Provoost P, Gillard E, Douvere F, Appeltans W (2024). UNESCO eDNA expedition in The Wadden Sea (Denmark, Germany, The Netherlands): April 2023. Version 2.0. OBIS Secretariat. Occurrence dataset. https://doi.org/10.25607/sqypig

Published: December 08, 2024 at 17:25

URL: https://ipt.obis.org/secretariat/resource?r=edna-wadden-sea

Gregor Scheiffarth
NLPV, Lower Saxon Wadden Sea National Park Authority

Janne Hansen
BUKEA Hamburg, Germany

Julia Meyer
BUKEA Hamburg, Germany

Xenia Salomonsen
Danish National Park Wadden Sea, Nationalpark Vadehavet, Denmark

Wouter van der Heij
Waddenvereniging, Netherlands

Tessa van Bussel
Waddenvereniging, Netherlands

Julia Busch
Common Wadden Sea Secretariat, Germany

Kristine Meise
Common Wadden Sea Secretariat, Germany

Cristina Nazzari
Common Wadden Sea Secretariat, Germany

Saara Suominen
UNESCO-IOC

Pieter Provoost
UNESCO-IOC

Elle Gillard
UNESCO-WHC

Fanny Douvere
UNESCO-WHC

Ward Appeltans
UNESCO-IOC

79,335
occurrence records
79,335
sequences
520
taxa
300
species

Taxa

Missing and invalid fields

Field Missing Invalid
coordinateUncertaintyInMeters 79,335
100.0%
eventDate 4,269
5.4%
maximumDepthInMeters 79,335
100.0%
minimumDepthInMeters 79,335
100.0%
scientificNameID 16
0.0%

Quality flags

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

Flag Dropped Records
NO_DEPTH 79,335
100.0%
NO_ACCEPTED_NAME 46,381
58.5%
ON_LAND 378
0.5%
MARINE_UNSURE 212
0.3%
NOT_MARINE 168
0.2%
NO_MATCH 16
0.0%

Measurement types

DNA derived data