Scup and windowpane flounder expanded length frequency for study of scup and windowpane flounder catch using scup gear and a Large Mesh Belly Panel (LMBP), October 2015 (Windowpane Bycatch project) (NCEI Accession 0277474)

This dataset contains biological and survey - biological data collected on F/V Elizabeth & Katherine and F/V Sea Breeze Too during cruises Elizabeth_and_Katherine-trip1, Elizabeth_and_Katherine-trip2, Elizabeth_and_Katherine-trip3, Elizabeth_and_Katherine-trip4, Sea_Breeze_Too-trip1, Sea_Breeze_Too-trip2, Sea_Breeze_Too-trip3, and Sea_Breeze_Too-trip4 from 2015-10-07 to 2015-10-21. These data include species. The instruments used to collect these data include Trawl_custom. These data were collected by Emerson C Hasbrouck of Cornell University as part of the "Small Mesh Fishery Bycatch Reduction in the Southern New England/Mid-Atlantic Windowpane Flounder Stock Area (Windowpane Bycatch)" project and "NorthEast Consortium (NEC)" program. The Biological and Chemical Oceanography Data Management Office (BCO-DMO) submitted these data to NCEI on 2023-01-23.

The following is the text of the dataset description provided by BCO-DMO:

Scup and windowpane flounder expanded lengths table

Dataset Description:
Acquisition Description:
Hauls were made in southern New England marine waters encompassing approximately 2000 square miles extending from Point Judith, RI in the west to Martha’s Vineyard, MA in the east and extending south to include Rhode Island Sound and portions of the Atlantic Ocean.

Subsamples of the catch were taken during each tow for length frequency distribution analysis. For each tow, 100 individual length measurements were taken for scup and windowpane flounder. All fish were measured if there were less than 100 per tow. The subsample length frequencies were expanded to the entire catch to determine the length frequency distribution for the catch. For each tow, the total catch numbers at length were calculated as the subsample numbers at length multiplied by the species-specific ratio of catch weight to subsample weight. Catch numbers were calculated for each net as the sum of the expanded numbers at length per tow.

The methodology is available in the final report (pdf). See Supplemental Files section.