Gulf of Aden - Ocean Biodiversity Information System

Gulf of Aden

Statistics

Occurrence records	205,142
Species level	81,395
Species	2,189
Taxa	2,705
Datasets	98
Time range	1758 - 2020

Data quality

Dropped records

Dropped records	0
Not marine	1
No WoRMS match	1,064
No coordinates	0
Zero coordinates	0

Taxonomic issues

Marine unsure	506
No accepted name available	15,735

Missing and invalid fields

Field	Missing	Invalid
coordinateUncertaintyInMeters	205,401	213
eventDate	9,132	0
maximumDepthInMeters	31,509	32
minimumDepthInMeters	11,390	0
occurrenceStatus	4,899	0
scientificName	26	0
scientificNameID	2,280	275

Spatial issues

Records on land	10
More than 20 km from shore	0
Depth exceeds bathymetric depth	652

Top datasets

Dataset	Records
World Ocean Database 2009 Published 2020-11-17	173,187
PANGAEA - Data from Tübingen University Published 2025-03-20	18,673
Ecoscope Observation Database Published 2025-03-20	5,699
Taxonomically comprehensive assessment of biodiversity of animal plankton throughout the world ocean Published	1,723
UF Invertebrate Zoology Published 2024-02-12	777
PANGAEA - Data from the Deep Sea Drilling Project (DSDP) Published 2025-03-20	685
Senckenberg's collection management system Published 2025-03-20	503
National Museum of Natural History Vertebrate Zoology Fishes Collections Published	414
IndOBIS, Indian Ocean Node of OBIS Published	399
Cordio East Africa Reef Building Corals 2014 Published 2017-01-13	369

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
Fiona Alder & Hancock, 1853 Phylum Mollusca > Class Gastropoda	15,217
Copepoda Milne Edwards, 1840 Phylum Arthropoda > Class Copepoda	14,974
Oncaea Philippi, 1843 Phylum Arthropoda > Class Copepoda	13,138
Sagitta Quoy & Gaimard, 1827 Phylum Chaetognatha > Class Sagittoidea	8,237
Corycaeus Dana, 1849 Phylum Arthropoda > Class Copepoda	7,685
Oikopleura Mertens, 1830 Phylum Chordata > Class Appendicularia	7,419
Ostracoda Latreille, 1802 Phylum Arthropoda > Class Ostracoda	6,511
Paracalanus parvus (Claus, 1863) Phylum Arthropoda > Class Copepoda	5,590
Thunnus albacares (Bonnaterre, 1788) Phylum Chordata > Class Teleostei	4,361
Clausocalanus arcuicornis (Dana, 1849-1852) Phylum Arthropoda > Class Copepoda	4,138

Newest species

Scientific name	Records	Since
Polyonyx socialis Werding & Hiller, 2019 Phylum Arthropoda > Class Malacostraca	2	2020
Phestilla chaetopterana (Ekimova, Deart & Schepetov, 2017) Phylum Mollusca > Class Gastropoda	3	2020
Holothuria (Thymiosycia) impatiens (Forsskål, 1775) Phylum Echinodermata > Class Holothuroidea	6	2012
Isognomon legumen (Gmelin, 1791) Phylum Mollusca > Class Bivalvia	5	2012
Trapezia cymodoce (Herbst, 1801) Phylum Arthropoda > Class Malacostraca	6	2012
Polyonyx pedalis Nobili, 1906 Phylum Arthropoda > Class Malacostraca	12	2012
Culcita coriacea Müller & Troschel, 1842 Phylum Echinodermata > Class Asteroidea	11	2012
Macrophiothrix propinqua (Lyman, 1861) Phylum Echinodermata > Class Ophiuroidea	6	2012
Ophionereis porrecta Lyman, 1860 Phylum Echinodermata > Class Ophiuroidea	10	2012
Phyllidiella pustulosa (Cuvier, 1804) Phylum Mollusca > Class Gastropoda	8	2012

Data providers

Name	Records
National Oceanic and Atmospheric Administration, Washington	173,191
U.S. Geological Survey HQ	173,191
Vlaams Instituut voor de Zee	26,050
Eberhard Karls University of Tübingen	18,673
Institut de Recherche pour le Développement	5,699
Intergovernmental Oceanographic Commission of UNESCO	2,857
Woods Hole Oceanographic Institution	1,723
Senckenberg Gesellschaft für Naturforschung	811
Florida Museum of Natural History	777
Centre for Marine Living Resources & Ecology, Ministry of Earth Sciences, Government of India	602