Atlantic Herring Acoustic Surveys

The NEFSC Advanced Sampling Technologies Research Group conducts annual fisheries acoustic surveys using state-of-the-art acoustic, midwater trawling, and underwater video technologies to improve fisheries-independent stock assessments for pelagic species. Pilot and experimental studies were conducted during 1995-97 to develop the NEFSC's fisheries acoustic capabilities. Annual NEFSC Atlantic Herring Acoustic Surveys began in 1998. NEFSC acoustic capabilities include multifrequency EK60 echosounder data, Acoustic Doppler Current Profiler (ADCP), and trawl monitoring systems. Midwater trawling, plankton sampling, and underwater video operations provide biological samples and target verification. CTD (conductivity-temperature-depth) vertical profiles are also routinely obtained during survey operations.

Data and Resources

Additional Info

Field Value
Last Updated August 6, 2019, 05:54
Created June 8, 2017, 22:43
access_constraints ["Access Constraints: If data is stored on an internal NEFSC network, the requester may not have direct access to query the data unless they are also authorized for network access. | Use Constraints: User must read and fully comprehend the metadata prior to use. Applications or inferences derived from the data should be carefully considered for accuracy. Acknowledgement of NOAA/NMFS/NEFSC, as the source from which these data were obtained in any publications and/or other representations of these, data is suggested."]
bbox-east-long -66
bbox-north-lat 44
bbox-south-lat 38
bbox-west-long -75
coupled-resource []
dataset-reference-date [{"type": "publication", "value": ""}]
frequency-of-update asNeeded
guid gov.noaa.nmfs.inport:9025
licence ["NOAA provides no warranty, nor accepts any liability occurring from any incomplete, incorrect, or misleading data, or from any incorrect, incomplete, or misleading use of the data. It is the responsibility of the user to determine whether or not the data is suitable for the intended purpose."]
metadata-date 2019-07-09T11:19:19
metadata-language eng
progress completed
resource-type dataset
responsible-party [{"name": "", "roles": ["pointOfContact", "custodian"]}]
spatial {"type": "Polygon", "coordinates": [[[-75.0, 38.0], [-66.0, 38.0], [-66.0, 44.0], [-75.0, 44.0], [-75.0, 38.0]]]}
spatial_harvester true
temporal-extent-begin 1998
temporal-extent-end 2012