Sierra Leone

Statistics

Occurrence records 17,356
Species level 16,795
Species 650
Taxa 692
Datasets 52
Time range 1849 - 2023

Data quality

Dropped records

Dropped records 0
Not marine 77
No WoRMS match 2,809
No coordinates 0
Zero coordinates 0

Taxonomic issues

Marine unsure 0
No accepted name available 28

Missing and invalid fields

Field Missing Invalid
coordinateUncertaintyInMeters 5,066 15,005
eventDate 3,886 0
maximumDepthInMeters 19,730 0
minimumDepthInMeters 19,371 0
occurrenceStatus 15,758 0
scientificName 2,687 0
scientificNameID 15,392 0

Spatial issues

Records on land 199
More than 20 km from shore 1
Depth exceeds bathymetric depth 19

Top datasets

Dataset Records
FishBase Database
Published 2023-03-23
12,335
Ecoscope tuna observer data
Published 2025-03-20
2,259
Ecoscope tuna bycatch observer data
Published 2025-03-20
1,387
Ecoscope Balbaya Database
Published 2025-03-20
204
PANGAEA - Data from various sources
Published 2025-03-20
187
World Ocean Database 2009
Published 2020-11-17
178
FishNet2 Marine Data
Published 2023-12-19
175
National Museum of Natural History Vertebrate Zoology Fishes Collections
Published
133
Guinea fish dataset 1985-1987
Published 2016-03-14
97
Biological observations from the Discovery Investigations 1925-1952
Published 2019-03-15
48

Distribution

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

Records

Composition

detailed (class) simple

Top taxa

Unique species IUCN Red List All taxa
Scientific name Records
Katsuwonus pelamis (Linnaeus, 1758)
Phylum Chordata > Class Teleostei
861
Thunnus obesus (Lowe, 1839) VU
Phylum Chordata > Class Teleostei
533
Thunnus albacares (Bonnaterre, 1788)
Phylum Chordata > Class Teleostei
409
Auxis thazard (Lacepède, 1800)
Phylum Chordata > Class Teleostei
248
Caranx crysos (Mitchill, 1815)
Phylum Chordata > Class Teleostei
238
Elagatis bipinnulata (Quoy & Gaimard, 1825)
Phylum Chordata > Class Teleostei
232
Canthidermis maculata (Bloch, 1786)
Phylum Chordata > Class Teleostei
177
Balistes capriscus Gmelin, 1789 VU
Phylum Chordata > Class Teleostei
175
Auxis Cuvier, 1829
Phylum Chordata > Class Teleostei
174
Euthynnus alletteratus (Rafinesque, 1810)
Phylum Chordata > Class Teleostei
158

Newest species

Scientific name Records Since
Puffinus gravis (O'Reilly, 1818)
Phylum Chordata > Class Aves
4 2023
Numenius phaeopus (Linnaeus, 1758)
Phylum Chordata > Class Aves
1 2014
Sterna paradisaea Pontoppidan, 1763
Phylum Chordata > Class Aves
6 2007
Vitta adansoniana (Récluz, 1841)
Phylum Mollusca > Class Gastropoda
1 2006
Caretta caretta (Linnaeus, 1758) VU
Phylum Chordata
7 2005
Taractichthys longipinnis (Lowe, 1843)
Phylum Chordata > Class Teleostei
1 2002
Remora remora (Linnaeus, 1758)
Phylum Chordata > Class Teleostei
1 2002
Stenella clymene (Gray, 1850)
Phylum Chordata > Class Mammalia
1 2001
Thunnus albacares (Bonnaterre, 1788)
Phylum Chordata > Class Teleostei
53 2000
Thunnus obesus (Lowe, 1839) VU
Phylum Chordata > Class Teleostei
34 2000