Dataset
EurOBIS MeasurementOrFact Open in mapper Explore occurrences
The CETUS dataset contains effort-based occurrence records collected during a cetacean monitoring programme in the Eastern North Atlantic, since 2012. The CETUS dataset contains data collected within the CETUS Project (www.cetusproject.com), a cetacean monitoring programme in the Eastern North Atlantic, running since 2012. The project is led by the Interdisciplinary Centre of Marine and Environmental Research (CIIMAR - University of Porto, Portugal), in partnership with TRANSINSULAR - Grupo ETE, a Portuguese company for maritime transport, that offers its cargo ships to be used as a platforms of opportunity to monitor cetaceans along routes between Continental Portugal and Madeira, Azores, Canary and Cape Verde islands. On-board trained marine mammal observers collect data on: survey effort, cetacean and other megafauna occurrences, as well as marine traffic and meteorological conditions. Data is provided in the recent OBIS-ENV-DATA format, and comprises 8913 georeferenced positions associated with 3195 occurrences of 44 marine taxa.
Citation: Correia, A.M., Oliveira-Rodrigues, C., M. Silva, I., Gandra, M., Liberal, M., Valente, R., Gil, A., Rosso, M., Pierce, G.J. & Sousa-Pinto, I., CIIMAR - UP. (2022). CETUS: Cetacean monitoring surveys in the Eastern North Atlantic. Marine Data Archive.
Published: November 25, 2025 at 09:10
URL: http://ipt.vliz.be/eurobis/resource?r=cetus_cetaceans
Ana Mafalda Correia
CIIMAR/CIMAR LA, Interdisciplinary Centre of Marine and Environmental Research, University of Porto
Miguel Gandra
CIIMAR/CIMAR LA, Interdisciplinary Centre of Marine and Environmental Research, University of Porto
Marcos Liberal
Fraunhofer AICOS
Raul Valente
CIIMAR/CIMAR LA, Interdisciplinary Centre of Marine and Environmental Research, University of Porto
Iolanda M. Silva
CIIMAR/CIMAR LA, Interdisciplinary Centre of Marine and Environmental Research, University of Porto
| Field | Missing | Invalid | |
|---|---|---|---|
| maximumDepthInMeters | 15,821 |
|
|
| minimumDepthInMeters | 15,821 |
|
The OBIS data quality flags are documented at https://github.com/iobis/obis-qc.
| Flag | Dropped | Records | |
|---|---|---|---|
| NO_DEPTH | 15,821 |
|
|
| ON_LAND | 23 |
|