ECNASAP Groundfish Atlas


The East Coast North America Strategic Assessment Project (ECNASAP) makes their Groundfish Atlas data available at OBIS. Data includes fishery-independent groundfish observations. The OBIS compiled data includes species name, individual count, lat/lon, and some environmental correlates like depth and salinity. 

Dataset Location: OBIS ECNASAP Groundfish Atlas

Direct Download: OBIS ECNASAP Groundfish Atlas

Site Location: East coast of North America: Cape Hatteras to the US/Canadian border and Bay of Fundy through the Scotian Shelf.

Site(s) Georeferenced: Yes

Timespan: 1970 - 1995

Sampling Frequency: annual

Data Collection Summary / Methods: large trawl survey

Data collected: The associated Groundfish Atlas Survey consists of 99 species distribution maps subset from more than 55,000 tows with 26,000,000 individuals of 412 species. OBIS data schema: species name, individual count, date, location, temperature, depth, salinity, nitrogen, oxygen, silicate.

Known Issues: To obtain this dataset you may use the interactive data mapper and make multiple clicks to orient and dowload data. May be difficult to locate quickly or with an automated program.

Best Practices: tips for separating the wheat from the chaff
Conditions for use: 'freely available' and 'open-access' as per OBIS:

"Acknowledge the use of specific records from contributing databases in the form appearing in the 'Citation' field thereof (if any); and acknowledge the use of the OBIS facility.

"For information purposes, email to the full citation of any publication made (printed or electronic) that cites OBIS or any constituent part.

"Recognize the limitations of data in OBIS" (GCMD Metadata)

Citation/ Distributing Author:  Brown, S.K.R., Zwanenburg, K., Branton, R. 2005. ECNASAP - East Coast North America Strategic Assessment (report). East Coast North America Strategic Assessment Project. OBIS Canada, Bedford Institute of Oceanography, Dartmouth, Nova Scotia, Canada, Version 1, Digital, retrieved from

Supplemental resources: OBIS Canada:

Available via the EcoData Retriever: No

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