Project metadata - Test DNA derived

Occurrence
Latest version published by Test Organization #1 on Apr 23, 2026 Test Organization #1
Publication date:
23 April 2026
Published by:
Test Organization #1
License:
CC0 1.0

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 93,908 records in English (13 MB) - Update frequency: daily
Metadata as an EML file download in English (8 KB)
Metadata as an RTF file download in English (7 KB)

Description

tax_class_id_cutoff: 85Minimum percent identity for taxonomic assignmenttax_class_query_cutoff: 96Minimum percent query coverage for taxonomic assignmenttax_class_collapse: Taxonomic levels were dropped to the lowest common ancestor (LCA) with the similarity thresholds of 99%, and also based on % identify thresholds (>98% species). This was conducted using the LCA_taxonomy script in eDNAFlow https://github.com/mahsa-mousavi/eDNAFlow.How was the taxa collapsed to higher taxonomic levels? i.e. lowest common ancestorscreen_contam_method: Taxa detected in negative controls were checked and removed across curated ASV dataset (i.e. samples)How were contaminations screened and applied in data curation/analyses/interpretation?screen_geograph_method: Distribution information was checked using FishBase and SealifeBase. New eDNA occurrence records in the region were heavily scrutinised; if congeners were not sequenced for targeted gene marker then the taxonomic assignment was collapsed to lowest common ancestor.How were species distribution information screened and applied?screen_nontarget_method: Non-targeted species (i.e. domestic animals, humans and non-marine species) were removed from curated ASV dataset.How were non-target species screened and applied?bioinfo_method_additional: The min_reads_cutoff was 1 read, but singletons were kept if the same sequence was detected in multiple samples.Additional information on bioinformatics, that has not been shared in the given record. [This dataset was processed using the GBIF Metabarcoding Data Toolkit.]

Data Records

The data in this occurrence 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 93,908 records.

1 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.

Occurrence (core)
93908
dnaDerivedData 
93908

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 Test Organization #1. To the extent possible under law, the publisher has waived all rights to these data and has dedicated them to the Public Domain (CC0 1.0). Users may copy, modify, distribute and use the work, including for commercial purposes, without restriction.

GBIF Registration

This resource has not been registered with GBIF

Keywords

Occurrence

Contacts

Thomas Stjernegaard Jeppesen
  • Originator ●
  • Point Of Contact
  • Grenågade 5 4. th
2100 KØBENHAVN Ø
Denmark
DK
  • 61333847

Geographic Coverage

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Bounding Coordinates South West [-90, -180], North East [90, 180]

Project Data

Project Description

Title Project Title
Identifier Project Identifier
Funding Project Funding
Study Area Description Project Study Area Description
Design Description Project Design Description

The personnel involved in the project:

Thomas Stjernegaard
  • Editor

Additional Metadata