Name: ORMEF_v1: Occurrence Records of Mediterranean Exotic Fishes (updated to 01/01/2026)
License: This work is licensed under a Creative Commons Attribution Non Commercial (CC-BY-NC 4.0) License

ORMEF is a database about Mediterranean Exotic Fishes including geo-referenced information and temporal dimension of the invasions for scientists, conservationists and policy makers, disseminating specialist’s knowledge and experience.

Citation: Azzurro E, D'Amen M, Biancone N (2026). ORMEF_v1: Occurrence Records of Mediterranean Exotic Fishes (updated to 01/01/2026). Version 1. Occurrence dataset.

Published: April 27, 2026 at 14:15

First registration: April 27, 2026 at 10:00

License: This work is licensed under a Creative Commons Attribution Non Commercial (CC-BY-NC 4.0) License

URL: https://ipt.medobis.eu/resource?r=ormefmediterraneanexoticfishes

Contacts:

Ernesto Azzurro
CNR-IRBIM

Manuela D'Amen
ISPRA

Noemi Biancone
CNR-IRPPS

12,841

occurrence records

19,638

measurements and facts

233

taxa

229

species

Taxa

Missing and invalid fields

Field	Missing	Invalid
coordinateUncertaintyInMeters	12,841		100.0%
eventDate		7	0.1%
maximumDepthInMeters	3,933		30.6%
minimumDepthInMeters	3,932		30.6%

Quality flags

The OBIS data quality flags are documented at https://github.com/iobis/obis-qc.

Flag	Records
NO_DEPTH	3,932	30.6%
DEPTH_EXCEEDS_BATH	574	4.5%
ON_LAND	285	2.2%

ORMEF_v1: Occurrence Records of Mediterranean Exotic Fishes (updated to 01/01/2026)

Taxa

Missing and invalid fields

Quality flags

Measurement types

DNA derived data