Zanzibar (Unguja) - Saadani - Ocean Biodiversity Information System

Zanzibar (Unguja) - Saadani

Statistics

Occurrence records	11,432
Species level	6,827
Species	2,021
Taxa	2,802
Datasets	94
Time range	1775 - 2024

Data quality

Dropped records

Dropped records	0
Not marine	125
No WoRMS match	459
No coordinates	0
Zero coordinates	0

Taxonomic issues

Marine unsure	2
No accepted name available	48

Missing and invalid fields

Field	Missing	Invalid
coordinateUncertaintyInMeters	10,346	8
eventDate	1,879	0
maximumDepthInMeters	5,723	23
minimumDepthInMeters	5,690	0
occurrenceStatus	6,311	0
scientificName	69	0
scientificNameID	3,910	3

Spatial issues

Records on land	5,356
More than 20 km from shore	0
Depth exceeds bathymetric depth	96

Top datasets

Dataset	Records
Nematoda from Kenya and Zanzibar Published 2025-03-20	3,224
Malacology Collection at the Academy of Natural Sciences of Philadelphia Published 2025-03-18	2,877
NaGISA Project Published 2018-03-21	1,061
Occurrence records of southern African aquatic biodiversity Published 2024-05-09	739
Australian Museum Malacology Collection - Marine records Published 2022-06-08	632
FishNet2 Marine Data Published 2023-12-19	440
A Biotic Database of Indo-Pacific Marine Mollusks Published 2018-11-12	319
CAS Invertebrate Zoology (IZ) Published 2025-03-17	201
IndOBIS, Indian Ocean Node of OBIS Published	160
Queensland Museum Porifera Published 2023-06-28	155

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
Porifera Grant, 1836 Phylum Porifera	120
Theristus Bastian, 1865 Phylum Nematoda > Class Chromadorea	86
Epsilonema Steiner, 1927 Phylum Nematoda > Class Chromadorea	72
Microlaimus de Man, 1880 Phylum Nematoda > Class Chromadorea	72
Prochromadorella Micoletzky, 1924 Phylum Nematoda > Class Chromadorea	70
Actinonema Cobb, 1920 Phylum Nematoda > Class Chromadorea	66
Chromadorina Filipjev, 1918 Phylum Nematoda > Class Chromadorea	64
Viscosia de Man, 1890 Phylum Nematoda > Class Enoplea	62
Tricoma Cobb, 1894 Phylum Nematoda > Class Chromadorea	60
Megaptera novaeangliae (Borowski, 1781) Phylum Chordata > Class Mammalia	57

Newest species

Scientific name	Records	Since
Larus fuscus Linnaeus, 1758 Phylum Chordata > Class Aves	2	2023
Sterna bengalensis Lesson, 1831 Phylum Chordata > Class Aves	1	2023
Larus hemprichii Bruch, 1853 Phylum Chordata > Class Aves	1	2023
Cladiella australis (Macfadyen, 1936) Phylum Cnidaria > Class Octocorallia	2	2018
Toxopneustes pileolus (Lamarck, 1816) Phylum Echinodermata > Class Echinoidea	2	2018
Brissus latecarinatus (Leske, 1778) Phylum Echinodermata > Class Echinoidea	4	2018
Halgerda wasinensis Eliot, 1904 Phylum Mollusca > Class Gastropoda	5	2018
Phyllidiella meandrina (Pruvot-Fol, 1957) Phylum Mollusca > Class Gastropoda	3	2018
Sculpsitechinus auritus (Leske, 1778) Phylum Echinodermata > Class Echinoidea	4	2018
Tenellia lugubris (Bergh, 1870) Phylum Mollusca > Class Gastropoda	3	2018

Data providers

Name	Records
Vlaams Instituut voor de Zee	3,676
Universiteit Gent, Marine Biology research group	3,316
InvertEBase	2,877
Malacology Collection at the Academy of Natural Sciences of Philadelphia	2,877
Universidad Simon Bolivar	1,214
CSIRO Oceans and Atmosphere Information and Data Centre, Hobart	861
Intergovernmental Oceanographic Commission of UNESCO	765
South African Institute for Aquatic Biodiversity	739
Australian Museum	677
Tulane University Biodiversity Research Institute	440