Seto Naikai or Inland Sea - Ocean Biodiversity Information System

Seto Naikai or Inland Sea

Statistics

Occurrence records	125,941
Species level	83,058
Species	1,623
Taxa	2,107
Datasets	50
Time range	1874 - 2024

Data quality

Dropped records

Dropped records	0
Not marine	871
No WoRMS match	2,644
No coordinates	0
Zero coordinates	0

Taxonomic issues

Marine unsure	1,101
No accepted name available	14,201

Missing and invalid fields

Field	Missing	Invalid
coordinateUncertaintyInMeters	131,783	155
eventDate	668	0
maximumDepthInMeters	88,584	10,572
minimumDepthInMeters	88,558	10,525
occurrenceStatus	753	0
scientificName	35	0
scientificNameID	12,395	981

Spatial issues

Records on land	979
More than 20 km from shore	0
Depth exceeds bathymetric depth	10

Top datasets

Dataset	Records
World Ocean Database 2009 Published 2020-11-17	54,646
JODC Dataset Published 2024-06-14	45,057
Rocky shore macrobiota of southeastern Osaka Bay: Results of surveys Published 2024-07-18	16,113
Fixed Point Survey for Shorebirds of the family Scolopacidae and Charadriidae Published 2024-05-16	4,314
Survey data of tidal flats on the Monitoring sites 1000 project, BDCJ Published 2024-06-14	1,458
Kelp Dataset Published 2024-06-14	1,398
Survey data of seagrass beds on the Monitoring sites 1000 project, BDCJ Published 2024-06-14	1,148
FishNet2 Marine Data Published 2023-12-19	388
Simultaneous surveys of littoral organisms in Osaka Bay in 2024 Published 2025-02-13	198
Marine data from the Bernice P. Bishop Museum Published 2023-03-20	168

Distribution

Disclaimer: EEZ boundaries based on Marine Regions (no endorsement).

Records

Composition

detailed (class) simple

Top taxa

Unique species IUCN Red List All taxa Unique species IUCN Red List All taxa Unique species IUCN Red List All taxa

Scientific name	Records
Skeletonema costatum (Greville) Cleve, 1873 Phylum Heterokontophyta > Class Bacillariophyceae	5,760
Chaetoceros C.G. Ehrenberg, 1844 Phylum Heterokontophyta > Class Bacillariophyceae	4,304
Coscinodiscus C.G. Ehrenberg, 1839 Phylum Heterokontophyta > Class Bacillariophyceae	3,446
Tripos fusus (Ehrenberg) F.Gómez, 2013 Phylum Myzozoa > Class Dinophyceae	3,088
Noctiluca scintillans (Macartney) Kofoid & Swezy, 1921 Phylum Myzozoa > Class Dinophyceae	2,785
Copepoda Milne Edwards, 1840 Phylum Arthropoda > Class Copepoda	2,497
Animalia	2,318
Thalassiosira P.T. Cleve, 1873 emend. Hasle, 1973 Phylum Heterokontophyta > Class Bacillariophyceae	2,299
Tripos furca (Ehrenberg) F.Gómez, 2013 Phylum Myzozoa > Class Dinophyceae	1,960
Pseudo-nitzschia seriata (Cleve) H.Peragallo, 1899 Phylum Heterokontophyta > Class Bacillariophyceae	1,793

Newest species

Scientific name	Records	Since
Ocypode stimpsoni Ortmann, 1897 Phylum Arthropoda > Class Malacostraca	4	2024
Xenostrobus securis (Lamarck, 1819) Phylum Mollusca > Class Bivalvia	7	2023
Hemigrapsus takanoi Asakura & Watanabe, 2005 Phylum Arthropoda > Class Malacostraca	14	2023
Amphibalanus eburneus (Gould, 1841) Phylum Arthropoda > Class Thecostraca	8	2023
Neotrapezium liratum (Reeve, 1843) Phylum Mollusca > Class Bivalvia	6	2023
Clithon retropictum (E. von Martens, 1878) Phylum Mollusca > Class Gastropoda	6	2023
Raphanus raphanistrum L. Phylum Tracheophyta > Class Magnoliopsida	9	2023
Salsola komarovii Iljin Phylum Tracheophyta > Class Magnoliopsida	10	2023
Angelica japonica A.Gray Phylum Tracheophyta > Class Magnoliopsida	7	2023
Glehnia littoralis (A.Gray) F.Schmidt ex Miq. Phylum Tracheophyta > Class Magnoliopsida	6	2023

Data providers

Name	Records
U.S. Geological Survey HQ	54,647
National Oceanic and Atmospheric Administration, Washington	54,646
Japan Oceanographic Data Center	45,057
Osaka Museum of Natural History	16,127
Biodiversity Center of Japan, Ministry of the Environment	4,314
Ministry of the Environment	2,606
Hokkaido University	1,398
Tulane University Biodiversity Research Institute	388
IDEA Consultants, Osaka Branch Office	349
Kobe Research and Engineering Office for Port and Airport, Investigation Division	349