Acoustics Research

Fisheries acoustics data are collected from more than 200 sea-days each year aboard the FRV DELAWARE II and FRV ALBATROSS IV (decommissioned) and the FSV Henry B. Bigelow during pelagic, bottom-trawl, and marine mammal surveys. Acoustic sampling operations include continuous measurements using hull-mounted transducers and multi-frequency scientific echosounders. Biological sampling with midwater and bottom trawls, and underwater video deployments is conducted to verify species-specific backscatter and characterize sea-floor habitat. In-situ and laboratory experiments aid in understanding species-specific acoustic measurements. We are continuously developing, testing, and evaluating advanced sampling technologies during laboratory and field experiments to improve abundance estimates and map spatial and temporal distributions of fish and invertebrates. Acoustic, optic, and biological data are audited and archived in the NEFSC relational data management system.

Data and Resources

Additional Info

Field Value
Last Updated August 6, 2019, 05:54
Created June 8, 2017, 22:40
access_constraints ["Access Constraints: There may be constraints due to the timing between the time the data is archived and when it becomes available | Use Constraints: All the data have doi numbers. It is highly recommended that any use of the data includes citation of the doi. "]
bbox-east-long -66
bbox-north-lat 44
bbox-south-lat 38
bbox-west-long -75
contact-email michael.jech@noaa.gov
coupled-resource []
dataset-reference-date [{"type": "publication", "value": ""}]
frequency-of-update asNeeded
guid gov.noaa.nmfs.inport:26654
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 2019-07-29T08:10:41
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-data-service-type
spatial-reference-system
spatial_harvester true
temporal-extent-begin 1998-08-26