Dataset

Survey data of tidal flats on the Monitoring sites 1000 project, BDCJ

OBIS Japan Open in mapper Explore occurrences

This dataset contains data of the occurrence of macrozoobenthos which was recorded at survey sites of the Monitoring Sites 1000 Projects: Coastal Area Survey (Tidal flats). The annual survey was carried out with eight places of Japanese coast from north (Hokkaido) to south (Okinawa). In addition, the data about reference specimens in the survey every five years is included. The data of this dataset is derived from the data file of the Monitoring Sites 1000 Projects: Coastal Area Survey. The data file includes the information about quantity data of macrozoobenthos (the number of individuals per quadrats).

Citation: Biodiversity Center of Japan, Ministry of the Environment. Data file of tidal flats survey on Monitoring sites 1000 project at http://www.biodic.go.jp/moni1000/findings/data/index_file_tidalflats.html. Accessed on yyyy-mm-dd.

Published: May 28, 2025 at 08:09

URL: https://www.godac.jamstec.go.jp/ipt/resource?r=bdcj_mot-tf

Ministry of the Environment, Biodiversity Center of Japan, Ecosystem Monitoring Unit
Ministry of the Environment, Biodiversity Center of Japan, Ecosystem Monitoring Unit

Biodiversity Center of Japan Ecosystem Monitoring Unit,
Ministry of the Environment

9,204
occurrence records
276
taxa
280
species

Taxa

Missing and invalid fields

Field Missing Invalid
coordinateUncertaintyInMeters 9,204
100.0%
maximumDepthInMeters 9,204
100.0%
minimumDepthInMeters 9,204
100.0%
scientificNameID 4 40
0.5%

Quality flags

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

Flag Dropped Records
NO_DEPTH 9,204
100.0%
ON_LAND 2,636
28.6%
NO_MATCH 41
0.4%
NOT_MARINE 29
0.3%
MARINE_UNSURE 9
0.1%
NO_ACCEPTED_NAME 1
0.0%

Measurement types

DNA derived data