Tyrrhenian Sea - Ocean Biodiversity Information System

Tyrrhenian Sea

Statistics

Occurrence records	82,605
Species level	56,409
Species	3,180
Taxa	4,096
Datasets	159
Time range	1821 - 2023

Data quality

Dropped records

Dropped records	0
Not marine	526
No WoRMS match	2,864
No coordinates	0
Zero coordinates	0

Taxonomic issues

Marine unsure	1,324
No accepted name available	9,805

Missing and invalid fields

Field	Missing	Invalid
coordinateUncertaintyInMeters	187,376	12,597
eventDate	3,200	0
maximumDepthInMeters	35,390	5
minimumDepthInMeters	30,461	12
occurrenceStatus	3,007	0
scientificName	61	0
scientificNameID	2,028	1,594

Spatial issues

Records on land	1,267
More than 20 km from shore	0
Depth exceeds bathymetric depth	2,090

Top datasets

Dataset	Records
Zooplankton data at the LTER "MareChiara" site (Gulf of Naples, Mediterranean Sea) 1995-2015 Published 2025-03-20	19,115
Phytoplankton and environmental data at the LTER "MareChiara" site (Gulf of Naples, Mediterranean Sea) 1995-2015 Published 2025-03-20	7,556
IBSS historical data from different cruises Published 2025-03-20	7,380
Macrophytes occurrence data within French Mediterranen Lagoon since 2006 Published 2025-03-20	5,746
Reef Check Med - key Mediterranean marine species 2001-2020 Published 2025-03-20	4,464
PANGAEA - Data from the Ocean Drilling Program (ODP) Published 2025-03-20	3,463
Dataset of French Observation and Monitoring program for Phytoplankton and Hydrology in coastal waters since 1987 Published 2025-03-20	2,794
Zooplankton collected in the Mediterranean Sea in 1959 on board the R/V Akademik S. Vavilov Published 2025-03-20	2,611
PANGAEA - Data from Climatic variability of the Mediterranean Paleo-circulation (CLIVAMP) Published 2025-03-20	2,456
Benthic invertebrates abundance data from French REBENT network Published 2025-03-20	2,424

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
Caretta caretta (Linnaeus, 1758) VU Phylum Chordata	1,294
Posidonia oceanica (Linnaeus) Delile, 1813 Phylum Tracheophyta > Class Magnoliopsida	1,050
Pelagia noctiluca (Forsskål, 1775) Phylum Cnidaria > Class Scyphozoa	878
Stenella coeruleoalba (Meyen, 1833) Phylum Chordata > Class Mammalia	853
Protozoa Owen, 1858	831
Paracalanus Boeck, 1865 Phylum Arthropoda > Class Copepoda	779
Oithona Baird, 1843 Phylum Arthropoda > Class Copepoda	735
Farranula rostrata (Claus, 1863) Phylum Arthropoda > Class Copepoda	722
Tursiops truncatus (Montagu, 1821) Phylum Chordata > Class Mammalia	717
Centropages typicus Krøyer, 1849 Phylum Arthropoda > Class Copepoda	678

Newest species

Scientific name	Records	Since
Oxynotus centrina (Linnaeus, 1758) EN Phylum Chordata > Class Elasmobranchii	1	2022
Xiphias gladius Linnaeus, 1758 NT Phylum Chordata > Class Teleostei	8	2020
Heterosigma akashiwo (Hada) Hada ex Y.Hara & Chihara, 1987 Phylum Ochrophyta > Class Raphidophyceae	2	2020
Sphyraena flavicauda Rüppell, 1838 Phylum Chordata > Class Teleostei	1	2020
Sparisoma cretense (Linnaeus, 1758) Phylum Chordata > Class Teleostei	14	2020
Rhizaxinella pyrifera (Delle Chiaje, 1828) Phylum Porifera > Class Demospongiae	1	2019
Orcinus orca (Linnaeus, 1758) Phylum Chordata > Class Mammalia	1	2019
Larus ridibundus Linnaeus, 1766 Phylum Chordata > Class Aves	2	2019
Rapana venosa (Valenciennes, 1846) Phylum Mollusca > Class Gastropoda	1	2019
Sphenoderes neptunus Sørensen & Herranz, 2022 Phylum Kinorhyncha > Class Cyclorhagida	1	2019

Data providers

Name	Records
Vlaams Instituut voor de Zee	42,186
The Stazione Zoologica Anton Dohrn	27,743
Institut Français de Recherche pour l'Exploitation de la Mer, IFREMER, Centre de Brest	13,991
National Academy of Sciences of Ukraine, O. O. Kovalevsky Institute of Biology of the Southern Seas	11,180
Cépralmar	5,746
Reef Check Italia onlus	4,464
Duke University	3,204
Université de Liège	2,949
Institut Français de Recherche pour l'Exploitation de la Mer, IFREMER, Centre de Nantes	2,794
Hellenic Centre for Marine Research - Institute of Marine Biology, Biotechnology and Aquaculture	2,594