Cooperative Research Twin Trawl Sweep Comparison Study

The "Twin-Trawl Sweep Efficiency Study" was intended to compare the sweep efficiency and selectivity of the NEFSC standardized bottom trawl to that of a standardized trawl that differed only in sweep configuration. The experimental trawl was equipped with a small cookie sweep while the standardized trawl has a larger rock-hopper sweep. This work was done on a commercial twin-trawler that was capable of towing both nets side-by-side simultaneously. This work was undertaken in Southern New England waters in depths (30-50 meters) assumed to have high flounder and skate densities. Ninety two valid paired tows were accomplished. Efficiency and size selectivity for the two configurations were compared.

Data and Resources

Additional Info

Field Value
Last Updated October 6, 2017, 21:06
Created June 8, 2017, 22:42
access_constraints ["Access 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. | Use Constraints: 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."]
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guid gov.noaa.nmfs.inport:27385
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metadata-date 2017-09-21T10:53:07
metadata-language eng
progress completed
resource-type dataset
responsible-party [{"name": "Northeast Fisheries Science Center", "roles": ["pointOfContact", "custodian"]}]
spatial {"type": "Polygon", "coordinates": [[[-71.782887, 39.976988], [-66.7082, 39.976988], [-66.7082, 43.465033], [-71.782887, 43.465033], [-71.782887, 39.976988]]]}
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temporal-extent-begin 2009
temporal-extent-end 2010