Dataset

EPA'S EMAP Database

OBIS Secretariat Open in mapper Explore occurrences

Benthic Grab Information, Benthic Replicate Abundance data, Benthic Summary Data by station characterize the benthic grab data from samples collected in National Coastal Assessment (NCA) Estuaries. These data were collected from 2000-2004 for the marine coastal states of the contiguous United States, Alaska, Hawaii, and the US territories of Puerto Rico and the Virgin Islands.

URL: http://ipt.obis.org/nonode/resource?r=emap

US Environmental Protection Agency (EPA)
US Environmental Protection Agency (EPA)

Stephen Hale
US Environmental Protection Agency (EPA)

173,109
occurrence records
4,527
taxa
3,027
species

Taxa

Missing and invalid fields

Field Missing Invalid
coordinateUncertaintyInMeters 173,109
100.0%
maximumDepthInMeters 97,512
56.3%
minimumDepthInMeters 5,564
3.2%
occurrenceStatus 173,109
100.0%
scientificNameID 2,526 449
1.7%

Quality flags

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

Flag Dropped Records
ON_LAND 46,926
27.1%
NO_DEPTH 5,564
3.2%
DEPTH_EXCEEDS_BATH 2,170
1.3%
NO_MATCH 2,029
1.2%
MARINE_UNSURE 1,206
0.7%
NO_ACCEPTED_NAME 1,077
0.6%
NOT_MARINE 547
0.3%
WORMS_ANNOTATION_REJECT_HABITAT 240
0.1%
WORMS_ANNOTATION_RESOLVABLE 103
0.1%

Measurement types

DNA derived data