Dataset

Kelp Dataset

OBIS Japan Open in mapper Explore occurrences

This dataset contains kelp occurrence data around Japan which were registered from various sources in Hokkaido and Japan by S9-5 supported by the Environment Research and Technology Development Fund (S9) of the Ministry of the Environment, Japan.

Citation: Nakaoka, M., Watanabe, K. and Yotsukura, H. (2017) Kelp occurrence data around Japanese water extracted from literature. Available at http://www.godac.jamstec.go.jp/bismal/e/dataset/S9-5_Kelp.

Published: August 05, 2025 at 05:09

URL: https://www.godac.jamstec.go.jp/ipt/resource?r=s9-5_kelp

Masahiro Nakaoka
Hokkaido University

20,248
occurrence records
586
taxa
542
species

Taxa

Missing and invalid fields

Field Missing Invalid
coordinateUncertaintyInMeters 2,398
11.8%
maximumDepthInMeters 20,030
98.9%
minimumDepthInMeters 20,030
98.9%
scientificNameID 1,994 18
9.9%

Quality flags

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

Flag Dropped Records
NO_DEPTH 20,030
98.9%
ON_LAND 4,497
22.2%
NO_MATCH 1,987
9.8%
NO_ACCEPTED_NAME 391
1.9%
DEPTH_EXCEEDS_BATH 68
0.3%
WORMS_ANNOTATION_RESOLVABLE 25
0.1%
MARINE_UNSURE 1
0.0%

Measurement types

DNA derived data