OBIS-SEAMAP

Open in mapper Explore occurrences

OBIS-SEAMAP, Ocean Biodiversity Information System Spatial Ecological Analysis of Megavertebrate Populations, is a spatially referenced online database, aggregating marine mammal, seabird, sea turtle and ray & shark observation data from across the globe. OBIS-SEAMAP, hosted at Marine Geospatial Ecology Lab, Duke University, is aimed at augmenting our understanding of the distribution and the ecology of the target species by quantifying the global patterns of marine species distribution and biodiversity and designing and implementing standard databases and innovative sampling techniques. Started in 2002 by the funding from Alfred P. Sloan Foundation and continued to grow through the past funding from National Science Foundation, National Oceanographic Partnership Program and Naval Postgraduate School, OBIS-SEAMAP has become one of the largest data repository of this kind.

Ei Fujioka
efujioka@duke.edu

Patrick Halpin
phalpin@duke.edu

Benjamin Donnelly
bendy@duke.edu

5,386,481
occurrence records
858
taxa
638
species
1,235
datasets

Datasets

Missing and invalid fields

Field Missing Invalid
coordinateUncertaintyInMeters 1,974 3,038,973
56.5%
decimalLatitude 8
0.0%
decimalLongitude 8
0.0%
eventDate 64
0.0%
maximumDepthInMeters 5,386,481
100.0%
minimumDepthInMeters 5,386,473 8
100.0%
scientificName 8
0.0%
scientificNameID 8,442 11
0.2%

Quality flags

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

Flag Dropped Records
NO_DEPTH 5,386,481
100.0%
ON_LAND 204,379
3.8%
MARINE_UNSURE 27,717
0.5%
NOT_MARINE 7,594
0.1%
NO_ACCEPTED_NAME 7,508
0.1%
NO_MATCH 5,275
0.1%
WORMS_ANNOTATION_REJECT_HABITAT 1,807
0.0%
NO_COORD 8
0.0%
DATE_BEFORE_MIN 2
0.0%